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Merge branch 'nfs-for-2.6.36' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6 

* 'nfs-for-2.6.36' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6: (42 commits)
  NFS: NFSv4.1 is no longer a "developer only" feature
  NFS: NFS_V4 is no longer an EXPERIMENTAL feature
  NFS: Fix /proc/mount for legacy binary interface
  NFS: Fix the locking in nfs4_callback_getattr
  SUNRPC: Defer deleting the security context until gss_do_free_ctx()
  SUNRPC: prevent task_cleanup running on freed xprt
  SUNRPC: Reduce asynchronous RPC task stack usage
  SUNRPC: Move the bound cred to struct rpc_rqst
  SUNRPC: Clean up of rpc_bindcred()
  SUNRPC: Move remaining RPC client related task initialisation into clnt.c
  SUNRPC: Ensure that rpc_exit() always wakes up a sleeping task
  SUNRPC: Make the credential cache hashtable size configurable
  SUNRPC: Store the hashtable size in struct rpc_cred_cache
  NFS: Ensure the AUTH_UNIX credcache is allocated dynamically
  NFS: Fix the NFS users of rpc_restart_call()
  SUNRPC: The function rpc_restart_call() should return success/failure
  NFSv4: Get rid of the bogus RPC_ASSASSINATED(task) checks
  NFSv4: Clean up the process of renewing the NFSv4 lease
  NFSv4.1: Handle NFS4ERR_DELAY on SEQUENCE correctly
  NFS: nfs_rename() should not have to flush out writebacks
  ...
This commit is contained in:
Linus Torvalds 2010-08-07 13:19:36 -07:00
parent fe21ea18c7 3dce9a5c3a
commit 5df6b8e65a
41 changed files with 964 additions and 648 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
fs/nfs/Kconfig
View File

@ -61,8 +61,8 @@ config NFS_V3_ACL
If unsure, say N.
config NFS_V4
bool "NFS client support for NFS version 4 (EXPERIMENTAL)"
depends on NFS_FS && EXPERIMENTAL
bool "NFS client support for NFS version 4"
depends on NFS_FS
select RPCSEC_GSS_KRB5
help
This option enables support for version 4 of the NFS protocol
@ -72,16 +72,16 @@ config NFS_V4
space programs which can be found in the Linux nfs-utils package,
available from http://linux-nfs.org/.
If unsure, say N.
If unsure, say Y.
config NFS_V4_1
bool "NFS client support for NFSv4.1 (DEVELOPER ONLY)"
bool "NFS client support for NFSv4.1 (EXPERIMENTAL)"
depends on NFS_V4 && EXPERIMENTAL
help
This option enables support for minor version 1 of the NFSv4 protocol
(draft-ietf-nfsv4-minorversion1) in the kernel's NFS client.
Unless you're an NFS developer, say N.
If unsure, say N.
config ROOT_NFS
bool "Root file system on NFS"

19
fs/nfs/callback_proc.c
View File

@ -37,8 +37,8 @@ __be32 nfs4_callback_getattr(struct cb_getattrargs *args, struct cb_getattrres *
if (inode == NULL)
goto out_putclient;
nfsi = NFS_I(inode);
down_read(&nfsi->rwsem);
delegation = nfsi->delegation;
rcu_read_lock();
delegation = rcu_dereference(nfsi->delegation);
if (delegation == NULL || (delegation->type & FMODE_WRITE) == 0)
goto out_iput;
res->size = i_size_read(inode);
@ -53,7 +53,7 @@ __be32 nfs4_callback_getattr(struct cb_getattrargs *args, struct cb_getattrres *
args->bitmap[1];
res->status = 0;
out_iput:
up_read(&nfsi->rwsem);
rcu_read_unlock();
iput(inode);
out_putclient:
nfs_put_client(clp);
@ -62,16 +62,6 @@ out:
return res->status;
}
static int (*nfs_validate_delegation_stateid(struct nfs_client *clp))(struct nfs_delegation *, const nfs4_stateid *)
{
#if defined(CONFIG_NFS_V4_1)
if (clp->cl_minorversion > 0)
return nfs41_validate_delegation_stateid;
#endif
return nfs4_validate_delegation_stateid;
}
__be32 nfs4_callback_recall(struct cb_recallargs *args, void *dummy)
{
struct nfs_client *clp;
@ -92,8 +82,7 @@ __be32 nfs4_callback_recall(struct cb_recallargs *args, void *dummy)
inode = nfs_delegation_find_inode(clp, &args->fh);
if (inode != NULL) {
/* Set up a helper thread to actually return the delegation */
switch (nfs_async_inode_return_delegation(inode, &args->stateid,
nfs_validate_delegation_stateid(clp))) {
switch (nfs_async_inode_return_delegation(inode, &args->stateid)) {
case 0:
res = 0;
break;

21
fs/nfs/client.c
View File

@ -150,6 +150,7 @@ static struct nfs_client *nfs_alloc_client(const struct nfs_client_initdata *cl_
clp->cl_boot_time = CURRENT_TIME;
clp->cl_state = 1 << NFS4CLNT_LEASE_EXPIRED;
clp->cl_minorversion = cl_init->minorversion;
clp->cl_mvops = nfs_v4_minor_ops[cl_init->minorversion];
#endif
cred = rpc_lookup_machine_cred();
if (!IS_ERR(cred))
@ -178,7 +179,7 @@ static void nfs4_clear_client_minor_version(struct nfs_client *clp)
clp->cl_session = NULL;
}
clp->cl_call_sync = _nfs4_call_sync;
clp->cl_mvops = nfs_v4_minor_ops[0];
#endif /* CONFIG_NFS_V4_1 */
}
@ -188,7 +189,7 @@ static void nfs4_clear_client_minor_version(struct nfs_client *clp)
static void nfs4_destroy_callback(struct nfs_client *clp)
{
if (__test_and_clear_bit(NFS_CS_CALLBACK, &clp->cl_res_state))
nfs_callback_down(clp->cl_minorversion);
nfs_callback_down(clp->cl_mvops->minor_version);
}
static void nfs4_shutdown_client(struct nfs_client *clp)
@ -1126,7 +1127,7 @@ static int nfs4_init_callback(struct nfs_client *clp)
return error;
}
error = nfs_callback_up(clp->cl_minorversion,
error = nfs_callback_up(clp->cl_mvops->minor_version,
clp->cl_rpcclient->cl_xprt);
if (error < 0) {
dprintk("%s: failed to start callback. Error = %d\n",
@ -1143,10 +1144,8 @@ static int nfs4_init_callback(struct nfs_client *clp)
*/
static int nfs4_init_client_minor_version(struct nfs_client *clp)
{
clp->cl_call_sync = _nfs4_call_sync;
#if defined(CONFIG_NFS_V4_1)
if (clp->cl_minorversion) {
if (clp->cl_mvops->minor_version) {
struct nfs4_session *session = NULL;
/*
* Create the session and mark it expired.
@ -1158,7 +1157,13 @@ static int nfs4_init_client_minor_version(struct nfs_client *clp)
return -ENOMEM;
clp->cl_session = session;
clp->cl_call_sync = _nfs4_call_sync_session;
/*
* The create session reply races with the server back
* channel probe. Mark the client NFS_CS_SESSION_INITING
* so that the client back channel can find the
* nfs_client struct
*/
clp->cl_cons_state = NFS_CS_SESSION_INITING;
}
#endif /* CONFIG_NFS_V4_1 */
@ -1454,7 +1459,7 @@ struct nfs_server *nfs4_create_referral_server(struct nfs_clone_mount *data,
data->authflavor,
parent_server->client->cl_xprt->prot,
parent_server->client->cl_timeout,
parent_client->cl_minorversion);
parent_client->cl_mvops->minor_version);
if (error < 0)
goto error;

16
fs/nfs/delegation.c
View File

@ -268,14 +268,6 @@ out:
return status;
}
/* Sync all data to disk upon delegation return */
static void nfs_msync_inode(struct inode *inode)
{
filemap_fdatawrite(inode->i_mapping);
nfs_wb_all(inode);
filemap_fdatawait(inode->i_mapping);
}
/*
* Basic procedure for returning a delegation to the server
*/
@ -367,7 +359,7 @@ int nfs_inode_return_delegation(struct inode *inode)
delegation = nfs_detach_delegation_locked(nfsi, NULL, clp);
spin_unlock(&clp->cl_lock);
if (delegation != NULL) {
nfs_msync_inode(inode);
nfs_wb_all(inode);
err = __nfs_inode_return_delegation(inode, delegation, 1);
}
}
@ -471,9 +463,7 @@ void nfs_expire_unreferenced_delegations(struct nfs_client *clp)
/*
* Asynchronous delegation recall!
*/
int nfs_async_inode_return_delegation(struct inode *inode, const nfs4_stateid *stateid,
int (*validate_stateid)(struct nfs_delegation *delegation,
const nfs4_stateid *stateid))
int nfs_async_inode_return_delegation(struct inode *inode, const nfs4_stateid *stateid)
{
struct nfs_client *clp = NFS_SERVER(inode)->nfs_client;
struct nfs_delegation *delegation;
@ -481,7 +471,7 @@ int nfs_async_inode_return_delegation(struct inode *inode, const nfs4_stateid *s
rcu_read_lock();
delegation = rcu_dereference(NFS_I(inode)->delegation);
if (!validate_stateid(delegation, stateid)) {
if (!clp->cl_mvops->validate_stateid(delegation, stateid)) {
rcu_read_unlock();
return -ENOENT;
}

4
fs/nfs/delegation.h
View File

@ -34,9 +34,7 @@ enum {
int nfs_inode_set_delegation(struct inode *inode, struct rpc_cred *cred, struct nfs_openres *res);
void nfs_inode_reclaim_delegation(struct inode *inode, struct rpc_cred *cred, struct nfs_openres *res);
int nfs_inode_return_delegation(struct inode *inode);
int nfs_async_inode_return_delegation(struct inode *inode, const nfs4_stateid *stateid,
int (*validate_stateid)(struct nfs_delegation *delegation,
const nfs4_stateid *stateid));
int nfs_async_inode_return_delegation(struct inode *inode, const nfs4_stateid *stateid);
void nfs_inode_return_delegation_noreclaim(struct inode *inode);
struct inode *nfs_delegation_find_inode(struct nfs_client *clp, const struct nfs_fh *fhandle);

9
fs/nfs/dir.c
View File

@ -1652,16 +1652,7 @@ static int nfs_rename(struct inode *old_dir, struct dentry *old_dentry,
}
}
/*
* ... prune child dentries and writebacks if needed.
*/
if (atomic_read(&old_dentry->d_count) > 1) {
if (S_ISREG(old_inode->i_mode))
nfs_wb_all(old_inode);
shrink_dcache_parent(old_dentry);
}
nfs_inode_return_delegation(old_inode);
if (new_inode != NULL)
nfs_inode_return_delegation(new_inode);

29
fs/nfs/direct.c
View File

@ -69,6 +69,7 @@ struct nfs_direct_req {
/* I/O parameters */
struct nfs_open_context *ctx; /* file open context info */
struct nfs_lock_context *l_ctx; /* Lock context info */
struct kiocb * iocb; /* controlling i/o request */
struct inode * inode; /* target file of i/o */
@ -160,6 +161,7 @@ static inline struct nfs_direct_req *nfs_direct_req_alloc(void)
INIT_LIST_HEAD(&dreq->rewrite_list);
dreq->iocb = NULL;
dreq->ctx = NULL;
dreq->l_ctx = NULL;
spin_lock_init(&dreq->lock);
atomic_set(&dreq->io_count, 0);
dreq->count = 0;
@ -173,6 +175,8 @@ static void nfs_direct_req_free(struct kref *kref)
{
struct nfs_direct_req *dreq = container_of(kref, struct nfs_direct_req, kref);
if (dreq->l_ctx != NULL)
nfs_put_lock_context(dreq->l_ctx);
if (dreq->ctx != NULL)
put_nfs_open_context(dreq->ctx);
kmem_cache_free(nfs_direct_cachep, dreq);
@ -336,6 +340,7 @@ static ssize_t nfs_direct_read_schedule_segment(struct nfs_direct_req *dreq,
data->cred = msg.rpc_cred;
data->args.fh = NFS_FH(inode);
data->args.context = ctx;
data->args.lock_context = dreq->l_ctx;
data->args.offset = pos;
data->args.pgbase = pgbase;
data->args.pages = data->pagevec;
@ -416,24 +421,28 @@ static ssize_t nfs_direct_read_schedule_iovec(struct nfs_direct_req *dreq,
static ssize_t nfs_direct_read(struct kiocb *iocb, const struct iovec *iov,
unsigned long nr_segs, loff_t pos)
{
ssize_t result = 0;
ssize_t result = -ENOMEM;
struct inode *inode = iocb->ki_filp->f_mapping->host;
struct nfs_direct_req *dreq;
dreq = nfs_direct_req_alloc();
if (!dreq)
return -ENOMEM;
if (dreq == NULL)
goto out;
dreq->inode = inode;
dreq->ctx = get_nfs_open_context(nfs_file_open_context(iocb->ki_filp));
dreq->l_ctx = nfs_get_lock_context(dreq->ctx);
if (dreq->l_ctx == NULL)
goto out_release;
if (!is_sync_kiocb(iocb))
dreq->iocb = iocb;
result = nfs_direct_read_schedule_iovec(dreq, iov, nr_segs, pos);
if (!result)
result = nfs_direct_wait(dreq);
out_release:
nfs_direct_req_release(dreq);
out:
return result;
}
@ -574,6 +583,7 @@ static void nfs_direct_commit_schedule(struct nfs_direct_req *dreq)
data->args.offset = 0;
data->args.count = 0;
data->args.context = dreq->ctx;
data->args.lock_context = dreq->l_ctx;
data->res.count = 0;
data->res.fattr = &data->fattr;
data->res.verf = &data->verf;
@ -761,6 +771,7 @@ static ssize_t nfs_direct_write_schedule_segment(struct nfs_direct_req *dreq,
data->cred = msg.rpc_cred;
data->args.fh = NFS_FH(inode);
data->args.context = ctx;
data->args.lock_context = dreq->l_ctx;
data->args.offset = pos;
data->args.pgbase = pgbase;
data->args.pages = data->pagevec;
@ -845,7 +856,7 @@ static ssize_t nfs_direct_write(struct kiocb *iocb, const struct iovec *iov,
unsigned long nr_segs, loff_t pos,
size_t count)
{
ssize_t result = 0;
ssize_t result = -ENOMEM;
struct inode *inode = iocb->ki_filp->f_mapping->host;
struct nfs_direct_req *dreq;
size_t wsize = NFS_SERVER(inode)->wsize;
@ -853,7 +864,7 @@ static ssize_t nfs_direct_write(struct kiocb *iocb, const struct iovec *iov,
dreq = nfs_direct_req_alloc();
if (!dreq)
return -ENOMEM;
goto out;
nfs_alloc_commit_data(dreq);
if (dreq->commit_data == NULL || count < wsize)
@ -861,14 +872,18 @@ static ssize_t nfs_direct_write(struct kiocb *iocb, const struct iovec *iov,
dreq->inode = inode;
dreq->ctx = get_nfs_open_context(nfs_file_open_context(iocb->ki_filp));
dreq->l_ctx = nfs_get_lock_context(dreq->ctx);
if (dreq->l_ctx != NULL)
goto out_release;
if (!is_sync_kiocb(iocb))
dreq->iocb = iocb;
result = nfs_direct_write_schedule_iovec(dreq, iov, nr_segs, pos, sync);
if (!result)
result = nfs_direct_wait(dreq);
out_release:
nfs_direct_req_release(dreq);
out:
return result;
}

51
fs/nfs/file.c
View File

@ -202,38 +202,12 @@ static loff_t nfs_file_llseek(struct file *filp, loff_t offset, int origin)
return loff;
}
/*
* Helper for nfs_file_flush() and nfs_file_fsync()
*
* Notice that it clears the NFS_CONTEXT_ERROR_WRITE before synching to
* disk, but it retrieves and clears ctx->error after synching, despite
* the two being set at the same time in nfs_context_set_write_error().
* This is because the former is used to notify the _next_ call to
* nfs_file_write() that a write error occured, and hence cause it to
* fall back to doing a synchronous write.
*/
static int nfs_do_fsync(struct nfs_open_context *ctx, struct inode *inode)
{
int have_error, status;
int ret = 0;
have_error = test_and_clear_bit(NFS_CONTEXT_ERROR_WRITE, &ctx->flags);
status = nfs_wb_all(inode);
have_error |= test_bit(NFS_CONTEXT_ERROR_WRITE, &ctx->flags);
if (have_error)
ret = xchg(&ctx->error, 0);
if (!ret)
ret = status;
return ret;
}
/*
* Flush all dirty pages, and check for write errors.
*/
static int
nfs_file_flush(struct file *file, fl_owner_t id)
{
struct nfs_open_context *ctx = nfs_file_open_context(file);
struct dentry *dentry = file->f_path.dentry;
struct inode *inode = dentry->d_inode;
@ -246,7 +220,7 @@ nfs_file_flush(struct file *file, fl_owner_t id)
return 0;
/* Flush writes to the server and return any errors */
return nfs_do_fsync(ctx, inode);
return vfs_fsync(file, 0);
}
static ssize_t
@ -321,6 +295,13 @@ nfs_file_mmap(struct file * file, struct vm_area_struct * vma)
* Flush any dirty pages for this process, and check for write errors.
* The return status from this call provides a reliable indication of
* whether any write errors occurred for this process.
*
* Notice that it clears the NFS_CONTEXT_ERROR_WRITE before synching to
* disk, but it retrieves and clears ctx->error after synching, despite
* the two being set at the same time in nfs_context_set_write_error().
* This is because the former is used to notify the _next_ call to
* nfs_file_write() that a write error occured, and hence cause it to
* fall back to doing a synchronous write.
*/
static int
nfs_file_fsync(struct file *file, int datasync)
@ -328,13 +309,23 @@ nfs_file_fsync(struct file *file, int datasync)
struct dentry *dentry = file->f_path.dentry;
struct nfs_open_context *ctx = nfs_file_open_context(file);
struct inode *inode = dentry->d_inode;
int have_error, status;
int ret = 0;
dprintk("NFS: fsync file(%s/%s) datasync %d\n",
dentry->d_parent->d_name.name, dentry->d_name.name,
datasync);
nfs_inc_stats(inode, NFSIOS_VFSFSYNC);
return nfs_do_fsync(ctx, inode);
have_error = test_and_clear_bit(NFS_CONTEXT_ERROR_WRITE, &ctx->flags);
status = nfs_commit_inode(inode, FLUSH_SYNC);
have_error |= test_bit(NFS_CONTEXT_ERROR_WRITE, &ctx->flags);
if (have_error)
ret = xchg(&ctx->error, 0);
if (!ret)
ret = status;
return ret;
}
/*
@ -648,7 +639,7 @@ static ssize_t nfs_file_write(struct kiocb *iocb, const struct iovec *iov,
/* Return error values for O_DSYNC and IS_SYNC() */
if (result >= 0 && nfs_need_sync_write(iocb->ki_filp, inode)) {
int err = nfs_do_fsync(nfs_file_open_context(iocb->ki_filp), inode);
int err = vfs_fsync(iocb->ki_filp, 0);
if (err < 0)
result = err;
}
@ -684,7 +675,7 @@ static ssize_t nfs_file_splice_write(struct pipe_inode_info *pipe,
written = ret;
if (ret >= 0 && nfs_need_sync_write(filp, inode)) {
int err = nfs_do_fsync(nfs_file_open_context(filp), inode);
int err = vfs_fsync(filp, 0);
if (err < 0)
ret = err;
}

74
fs/nfs/inode.c
View File

@ -413,10 +413,8 @@ nfs_setattr(struct dentry *dentry, struct iattr *attr)
return 0;
/* Write all dirty data */
if (S_ISREG(inode->i_mode)) {
filemap_write_and_wait(inode->i_mapping);
if (S_ISREG(inode->i_mode))
nfs_wb_all(inode);
}
fattr = nfs_alloc_fattr();
if (fattr == NULL)
@ -530,6 +528,68 @@ out:
return err;
}
static void nfs_init_lock_context(struct nfs_lock_context *l_ctx)
{
atomic_set(&l_ctx->count, 1);
l_ctx->lockowner = current->files;
l_ctx->pid = current->tgid;
INIT_LIST_HEAD(&l_ctx->list);
}
static struct nfs_lock_context *__nfs_find_lock_context(struct nfs_open_context *ctx)
{
struct nfs_lock_context *pos;
list_for_each_entry(pos, &ctx->lock_context.list, list) {
if (pos->lockowner != current->files)
continue;
if (pos->pid != current->tgid)
continue;
atomic_inc(&pos->count);
return pos;
}
return NULL;
}
struct nfs_lock_context *nfs_get_lock_context(struct nfs_open_context *ctx)
{
struct nfs_lock_context *res, *new = NULL;
struct inode *inode = ctx->path.dentry->d_inode;
spin_lock(&inode->i_lock);
res = __nfs_find_lock_context(ctx);
if (res == NULL) {
spin_unlock(&inode->i_lock);
new = kmalloc(sizeof(*new), GFP_KERNEL);
if (new == NULL)
return NULL;
nfs_init_lock_context(new);
spin_lock(&inode->i_lock);
res = __nfs_find_lock_context(ctx);
if (res == NULL) {
list_add_tail(&new->list, &ctx->lock_context.list);
new->open_context = ctx;
res = new;
new = NULL;
}
}
spin_unlock(&inode->i_lock);
kfree(new);
return res;
}
void nfs_put_lock_context(struct nfs_lock_context *l_ctx)
{
struct nfs_open_context *ctx = l_ctx->open_context;
struct inode *inode = ctx->path.dentry->d_inode;
if (!atomic_dec_and_lock(&l_ctx->count, &inode->i_lock))
return;
list_del(&l_ctx->list);
spin_unlock(&inode->i_lock);
kfree(l_ctx);
}
/**
* nfs_close_context - Common close_context() routine NFSv2/v3
* @ctx: pointer to context
@ -566,11 +626,11 @@ static struct nfs_open_context *alloc_nfs_open_context(struct path *path, struct
path_get(&ctx->path);
ctx->cred = get_rpccred(cred);
ctx->state = NULL;
ctx->lockowner = current->files;
ctx->flags = 0;
ctx->error = 0;
ctx->dir_cookie = 0;
atomic_set(&ctx->count, 1);
nfs_init_lock_context(&ctx->lock_context);
ctx->lock_context.open_context = ctx;
}
return ctx;
}
@ -578,7 +638,7 @@ static struct nfs_open_context *alloc_nfs_open_context(struct path *path, struct
struct nfs_open_context *get_nfs_open_context(struct nfs_open_context *ctx)
{
if (ctx != NULL)
atomic_inc(&ctx->count);
atomic_inc(&ctx->lock_context.count);
return ctx;
}
@ -586,7 +646,7 @@ static void __put_nfs_open_context(struct nfs_open_context *ctx, int is_sync)
{
struct inode *inode = ctx->path.dentry->d_inode;
if (!atomic_dec_and_lock(&ctx->count, &inode->i_lock))
if (!atomic_dec_and_lock(&ctx->lock_context.count, &inode->i_lock))
return;
list_del(&ctx->list);
spin_unlock(&inode->i_lock);

7
fs/nfs/internal.h
View File

@ -370,10 +370,9 @@ unsigned int nfs_page_array_len(unsigned int base, size_t len)
* Helper for restarting RPC calls in the possible presence of NFSv4.1
* sessions.
*/
static inline void nfs_restart_rpc(struct rpc_task *task, const struct nfs_client *clp)
static inline int nfs_restart_rpc(struct rpc_task *task, const struct nfs_client *clp)
{
if (nfs4_has_session(clp))
rpc_restart_call_prepare(task);
else
rpc_restart_call(task);
return rpc_restart_call_prepare(task);
return rpc_restart_call(task);
}

7
fs/nfs/nfs2xdr.c
View File

@ -233,7 +233,7 @@ nfs_xdr_removeargs(struct rpc_rqst *req, __be32 *p, const struct nfs_removeargs
static int
nfs_xdr_readargs(struct rpc_rqst *req, __be32 *p, struct nfs_readargs *args)
{
struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth;
struct rpc_auth *auth = req->rq_cred->cr_auth;
unsigned int replen;
u32 offset = (u32)args->offset;
u32 count = args->count;
@ -393,8 +393,7 @@ nfs_xdr_symlinkargs(struct rpc_rqst *req, __be32 *p, struct nfs_symlinkargs *arg
static int
nfs_xdr_readdirargs(struct rpc_rqst *req, __be32 *p, struct nfs_readdirargs *args)
{
struct rpc_task *task = req->rq_task;
struct rpc_auth *auth = task->tk_msg.rpc_cred->cr_auth;
struct rpc_auth *auth = req->rq_cred->cr_auth;
unsigned int replen;
u32 count = args->count;
@ -575,7 +574,7 @@ nfs_xdr_diropres(struct rpc_rqst *req, __be32 *p, struct nfs_diropok *res)
static int
nfs_xdr_readlinkargs(struct rpc_rqst *req, __be32 *p, struct nfs_readlinkargs *args)
{
struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth;
struct rpc_auth *auth = req->rq_cred->cr_auth;
unsigned int replen;
p = xdr_encode_fhandle(p, args->fh);

8
fs/nfs/nfs3xdr.c
View File

@ -330,7 +330,7 @@ nfs3_xdr_accessargs(struct rpc_rqst *req, __be32 *p, struct nfs3_accessargs *arg
static int
nfs3_xdr_readargs(struct rpc_rqst *req, __be32 *p, struct nfs_readargs *args)
{
struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth;
struct rpc_auth *auth = req->rq_cred->cr_auth;
unsigned int replen;
u32 count = args->count;
@ -471,7 +471,7 @@ nfs3_xdr_linkargs(struct rpc_rqst *req, __be32 *p, struct nfs3_linkargs *args)
static int
nfs3_xdr_readdirargs(struct rpc_rqst *req, __be32 *p, struct nfs3_readdirargs *args)
{
struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth;
struct rpc_auth *auth = req->rq_cred->cr_auth;
unsigned int replen;
u32 count = args->count;
@ -675,7 +675,7 @@ static int
nfs3_xdr_getaclargs(struct rpc_rqst *req, __be32 *p,
struct nfs3_getaclargs *args)
{
struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth;
struct rpc_auth *auth = req->rq_cred->cr_auth;
unsigned int replen;
p = xdr_encode_fhandle(p, args->fh);
@ -802,7 +802,7 @@ nfs3_xdr_accessres(struct rpc_rqst *req, __be32 *p, struct nfs3_accessres *res)
static int
nfs3_xdr_readlinkargs(struct rpc_rqst *req, __be32 *p, struct nfs3_readlinkargs *args)
{
struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth;
struct rpc_auth *auth = req->rq_cred->cr_auth;
unsigned int replen;
p = xdr_encode_fhandle(p, args->fh);

57
fs/nfs/nfs4_fs.h
View File

@ -45,10 +45,29 @@ enum nfs4_client_state {
NFS4CLNT_RECLAIM_NOGRACE,
NFS4CLNT_DELEGRETURN,
NFS4CLNT_SESSION_RESET,
NFS4CLNT_SESSION_DRAINING,
NFS4CLNT_RECALL_SLOT,
};
enum nfs4_session_state {
NFS4_SESSION_INITING,
NFS4_SESSION_DRAINING,
};
struct nfs4_minor_version_ops {
u32 minor_version;
int (*call_sync)(struct nfs_server *server,
struct rpc_message *msg,
struct nfs4_sequence_args *args,
struct nfs4_sequence_res *res,
int cache_reply);
int (*validate_stateid)(struct nfs_delegation *,
const nfs4_stateid *);
const struct nfs4_state_recovery_ops *reboot_recovery_ops;
const struct nfs4_state_recovery_ops *nograce_recovery_ops;
const struct nfs4_state_maintenance_ops *state_renewal_ops;
};
/*
* struct rpc_sequence ensures that RPC calls are sent in the exact
* order that they appear on the list.
@ -89,7 +108,6 @@ struct nfs_unique_id {
*/
struct nfs4_state_owner {
struct nfs_unique_id so_owner_id;
struct nfs_client *so_client;
struct nfs_server *so_server;
struct rb_node so_client_node;
@ -99,7 +117,6 @@ struct nfs4_state_owner {
atomic_t so_count;
unsigned long so_flags;
struct list_head so_states;
struct list_head so_delegations;
struct nfs_seqid_counter so_seqid;
struct rpc_sequence so_sequence;
};
@ -125,10 +142,20 @@ enum {
* LOCK: one nfs4_state (LOCK) to hold the lock stateid nfs4_state(OPEN)
*/
struct nfs4_lock_owner {
unsigned int lo_type;
#define NFS4_ANY_LOCK_TYPE (0U)
#define NFS4_FLOCK_LOCK_TYPE (1U << 0)
#define NFS4_POSIX_LOCK_TYPE (1U << 1)
union {
fl_owner_t posix_owner;
pid_t flock_owner;
} lo_u;
};
struct nfs4_lock_state {
struct list_head ls_locks; /* Other lock stateids */
struct nfs4_state * ls_state; /* Pointer to open state */
fl_owner_t ls_owner; /* POSIX lock owner */
#define NFS_LOCK_INITIALIZED 1
int ls_flags;
struct nfs_seqid_counter ls_seqid;
@ -136,6 +163,7 @@ struct nfs4_lock_state {
struct nfs_unique_id ls_id;
nfs4_stateid ls_stateid;
atomic_t ls_count;
struct nfs4_lock_owner ls_owner;
};
/* bits for nfs4_state->flags */
@ -219,11 +247,15 @@ extern int nfs4_open_revalidate(struct inode *, struct dentry *, int, struct nam
extern int nfs4_server_capabilities(struct nfs_server *server, struct nfs_fh *fhandle);
extern int nfs4_proc_fs_locations(struct inode *dir, const struct qstr *name,
struct nfs4_fs_locations *fs_locations, struct page *page);
extern void nfs4_release_lockowner(const struct nfs4_lock_state *);
extern struct nfs4_state_recovery_ops *nfs4_reboot_recovery_ops[];
extern struct nfs4_state_recovery_ops *nfs4_nograce_recovery_ops[];
#if defined(CONFIG_NFS_V4_1)
extern int nfs4_setup_sequence(struct nfs_client *clp,
static inline struct nfs4_session *nfs4_get_session(const struct nfs_server *server)
{
return server->nfs_client->cl_session;
}
extern int nfs4_setup_sequence(const struct nfs_server *server,
struct nfs4_sequence_args *args, struct nfs4_sequence_res *res,
int cache_reply, struct rpc_task *task);
extern void nfs4_destroy_session(struct nfs4_session *session);
@ -234,7 +266,12 @@ extern int nfs4_init_session(struct nfs_server *server);
extern int nfs4_proc_get_lease_time(struct nfs_client *clp,
struct nfs_fsinfo *fsinfo);
#else /* CONFIG_NFS_v4_1 */
static inline int nfs4_setup_sequence(struct nfs_client *clp,
static inline struct nfs4_session *nfs4_get_session(const struct nfs_server *server)
{
return NULL;
}
static inline int nfs4_setup_sequence(const struct nfs_server *server,
struct nfs4_sequence_args *args, struct nfs4_sequence_res *res,
int cache_reply, struct rpc_task *task)
{
@ -247,7 +284,7 @@ static inline int nfs4_init_session(struct nfs_server *server)
}
#endif /* CONFIG_NFS_V4_1 */
extern struct nfs4_state_maintenance_ops *nfs4_state_renewal_ops[];
extern const struct nfs4_minor_version_ops *nfs_v4_minor_ops[];
extern const u32 nfs4_fattr_bitmap[2];
extern const u32 nfs4_statfs_bitmap[2];
@ -284,7 +321,7 @@ extern void nfs41_handle_sequence_flag_errors(struct nfs_client *clp, u32 flags)
extern void nfs41_handle_recall_slot(struct nfs_client *clp);
extern void nfs4_put_lock_state(struct nfs4_lock_state *lsp);
extern int nfs4_set_lock_state(struct nfs4_state *state, struct file_lock *fl);
extern void nfs4_copy_stateid(nfs4_stateid *, struct nfs4_state *, fl_owner_t);
extern void nfs4_copy_stateid(nfs4_stateid *, struct nfs4_state *, fl_owner_t, pid_t);
extern struct nfs_seqid *nfs_alloc_seqid(struct nfs_seqid_counter *counter, gfp_t gfp_mask);
extern int nfs_wait_on_sequence(struct nfs_seqid *seqid, struct rpc_task *task);

476
fs/nfs/nfs4proc.c
View File

@ -303,15 +303,19 @@ do_state_recovery:
}
static void renew_lease(const struct nfs_server *server, unsigned long timestamp)
static void do_renew_lease(struct nfs_client *clp, unsigned long timestamp)
{
struct nfs_client *clp = server->nfs_client;
spin_lock(&clp->cl_lock);
if (time_before(clp->cl_last_renewal,timestamp))
clp->cl_last_renewal = timestamp;
spin_unlock(&clp->cl_lock);
}
static void renew_lease(const struct nfs_server *server, unsigned long timestamp)
{
do_renew_lease(server->nfs_client, timestamp);
}
#if defined(CONFIG_NFS_V4_1)
/*
@ -356,7 +360,7 @@ static void nfs41_check_drain_session_complete(struct nfs4_session *ses)
{
struct rpc_task *task;
if (!test_bit(NFS4CLNT_SESSION_DRAINING, &ses->clp->cl_state)) {
if (!test_bit(NFS4_SESSION_DRAINING, &ses->session_state)) {
task = rpc_wake_up_next(&ses->fc_slot_table.slot_tbl_waitq);
if (task)
rpc_task_set_priority(task, RPC_PRIORITY_PRIVILEGED);
@ -370,12 +374,11 @@ static void nfs41_check_drain_session_complete(struct nfs4_session *ses)
complete(&ses->complete);
}
static void nfs41_sequence_free_slot(const struct nfs_client *clp,
struct nfs4_sequence_res *res)
static void nfs41_sequence_free_slot(struct nfs4_sequence_res *res)
{
struct nfs4_slot_table *tbl;
tbl = &clp->cl_session->fc_slot_table;
tbl = &res->sr_session->fc_slot_table;
if (res->sr_slotid == NFS4_MAX_SLOT_TABLE) {
/* just wake up the next guy waiting since
* we may have not consumed a slot after all */
@ -385,18 +388,17 @@ static void nfs41_sequence_free_slot(const struct nfs_client *clp,
spin_lock(&tbl->slot_tbl_lock);
nfs4_free_slot(tbl, res->sr_slotid);
nfs41_check_drain_session_complete(clp->cl_session);
nfs41_check_drain_session_complete(res->sr_session);
spin_unlock(&tbl->slot_tbl_lock);
res->sr_slotid = NFS4_MAX_SLOT_TABLE;
}
static void nfs41_sequence_done(struct nfs_client *clp,
struct nfs4_sequence_res *res,
int rpc_status)
static int nfs41_sequence_done(struct rpc_task *task, struct nfs4_sequence_res *res)
{
unsigned long timestamp;
struct nfs4_slot_table *tbl;
struct nfs4_slot *slot;
struct nfs_client *clp;
/*
* sr_status remains 1 if an RPC level error occurred. The server
@ -411,25 +413,51 @@ static void nfs41_sequence_done(struct nfs_client *clp,
if (res->sr_slotid == NFS4_MAX_SLOT_TABLE)
goto out;
tbl = &res->sr_session->fc_slot_table;
slot = tbl->slots + res->sr_slotid;
/* Check the SEQUENCE operation status */
if (res->sr_status == 0) {
tbl = &clp->cl_session->fc_slot_table;
slot = tbl->slots + res->sr_slotid;
switch (res->sr_status) {
case 0:
/* Update the slot's sequence and clientid lease timer */
++slot->seq_nr;
timestamp = res->sr_renewal_time;
spin_lock(&clp->cl_lock);
if (time_before(clp->cl_last_renewal, timestamp))
clp->cl_last_renewal = timestamp;
spin_unlock(&clp->cl_lock);
clp = res->sr_session->clp;
do_renew_lease(clp, timestamp);
/* Check sequence flags */
if (atomic_read(&clp->cl_count) > 1)
nfs41_handle_sequence_flag_errors(clp, res->sr_status_flags);
break;
case -NFS4ERR_DELAY:
/* The server detected a resend of the RPC call and
* returned NFS4ERR_DELAY as per Section 2.10.6.2
* of RFC5661.
*/
dprintk("%s: slot=%d seq=%d: Operation in progress\n",
__func__, res->sr_slotid, slot->seq_nr);
goto out_retry;
default:
/* Just update the slot sequence no. */
++slot->seq_nr;
}
out:
/* The session may be reset by one of the error handlers. */
dprintk("%s: Error %d free the slot \n", __func__, res->sr_status);
nfs41_sequence_free_slot(clp, res);
nfs41_sequence_free_slot(res);
return 1;
out_retry:
if (!rpc_restart_call(task))
goto out;
rpc_delay(task, NFS4_POLL_RETRY_MAX);
return 0;
}
static int nfs4_sequence_done(struct rpc_task *task,
struct nfs4_sequence_res *res)
{
if (res->sr_session == NULL)
return 1;
return nfs41_sequence_done(task, res);
}
/*
@ -480,12 +508,11 @@ static int nfs41_setup_sequence(struct nfs4_session *session,
if (res->sr_slotid != NFS4_MAX_SLOT_TABLE)
return 0;
memset(res, 0, sizeof(*res));
res->sr_slotid = NFS4_MAX_SLOT_TABLE;
tbl = &session->fc_slot_table;
spin_lock(&tbl->slot_tbl_lock);
if (test_bit(NFS4CLNT_SESSION_DRAINING, &session->clp->cl_state) &&
if (test_bit(NFS4_SESSION_DRAINING, &session->session_state) &&
!rpc_task_has_priority(task, RPC_PRIORITY_PRIVILEGED)) {
/*
* The state manager will wait until the slot table is empty.
@ -525,6 +552,7 @@ static int nfs41_setup_sequence(struct nfs4_session *session,
res->sr_session = session;
res->sr_slotid = slotid;
res->sr_renewal_time = jiffies;
res->sr_status_flags = 0;
/*
* sr_status is only set in decode_sequence, and so will remain
* set to 1 if an rpc level failure occurs.
@ -533,33 +561,33 @@ static int nfs41_setup_sequence(struct nfs4_session *session,
return 0;
}
int nfs4_setup_sequence(struct nfs_client *clp,
int nfs4_setup_sequence(const struct nfs_server *server,
struct nfs4_sequence_args *args,
struct nfs4_sequence_res *res,
int cache_reply,
struct rpc_task *task)
{
struct nfs4_session *session = nfs4_get_session(server);
int ret = 0;
dprintk("--> %s clp %p session %p sr_slotid %d\n",
__func__, clp, clp->cl_session, res->sr_slotid);
if (!nfs4_has_session(clp))
if (session == NULL) {
args->sa_session = NULL;
res->sr_session = NULL;
goto out;
ret = nfs41_setup_sequence(clp->cl_session, args, res, cache_reply,
task);
if (ret && ret != -EAGAIN) {
/* terminate rpc task */
task->tk_status = ret;
task->tk_action = NULL;
}
dprintk("--> %s clp %p session %p sr_slotid %d\n",
__func__, session->clp, session, res->sr_slotid);
ret = nfs41_setup_sequence(session, args, res, cache_reply,
task);
out:
dprintk("<-- %s status=%d\n", __func__, ret);
return ret;
}
struct nfs41_call_sync_data {
struct nfs_client *clp;
const struct nfs_server *seq_server;
struct nfs4_sequence_args *seq_args;
struct nfs4_sequence_res *seq_res;
int cache_reply;
@ -569,9 +597,9 @@ static void nfs41_call_sync_prepare(struct rpc_task *task, void *calldata)
{
struct nfs41_call_sync_data *data = calldata;
dprintk("--> %s data->clp->cl_session %p\n", __func__,
data->clp->cl_session);
if (nfs4_setup_sequence(data->clp, data->seq_args,
dprintk("--> %s data->seq_server %p\n", __func__, data->seq_server);
if (nfs4_setup_sequence(data->seq_server, data->seq_args,
data->seq_res, data->cache_reply, task))
return;
rpc_call_start(task);
@ -587,7 +615,7 @@ static void nfs41_call_sync_done(struct rpc_task *task, void *calldata)
{
struct nfs41_call_sync_data *data = calldata;
nfs41_sequence_done(data->clp, data->seq_res, task->tk_status);
nfs41_sequence_done(task, data->seq_res);
}
struct rpc_call_ops nfs41_call_sync_ops = {
@ -600,8 +628,7 @@ struct rpc_call_ops nfs41_call_priv_sync_ops = {
.rpc_call_done = nfs41_call_sync_done,
};
static int nfs4_call_sync_sequence(struct nfs_client *clp,
struct rpc_clnt *clnt,
static int nfs4_call_sync_sequence(struct nfs_server *server,
struct rpc_message *msg,
struct nfs4_sequence_args *args,
struct nfs4_sequence_res *res,
@ -611,13 +638,13 @@ static int nfs4_call_sync_sequence(struct nfs_client *clp,
int ret;
struct rpc_task *task;
struct nfs41_call_sync_data data = {
.clp = clp,
.seq_server = server,
.seq_args = args,
.seq_res = res,
.cache_reply = cache_reply,
};
struct rpc_task_setup task_setup = {
.rpc_client = clnt,
.rpc_client = server->client,
.rpc_message = msg,
.callback_ops = &nfs41_call_sync_ops,
.callback_data = &data
@ -642,10 +669,15 @@ int _nfs4_call_sync_session(struct nfs_server *server,
struct nfs4_sequence_res *res,
int cache_reply)
{
return nfs4_call_sync_sequence(server->nfs_client, server->client,
msg, args, res, cache_reply, 0);
return nfs4_call_sync_sequence(server, msg, args, res, cache_reply, 0);
}
#else
static int nfs4_sequence_done(struct rpc_task *task,
struct nfs4_sequence_res *res)
{
return 1;
}
#endif /* CONFIG_NFS_V4_1 */
int _nfs4_call_sync(struct nfs_server *server,
@ -659,18 +691,9 @@ int _nfs4_call_sync(struct nfs_server *server,
}
#define nfs4_call_sync(server, msg, args, res, cache_reply) \
(server)->nfs_client->cl_call_sync((server), (msg), &(args)->seq_args, \
(server)->nfs_client->cl_mvops->call_sync((server), (msg), &(args)->seq_args, \
&(res)->seq_res, (cache_reply))
static void nfs4_sequence_done(const struct nfs_server *server,
struct nfs4_sequence_res *res, int rpc_status)
{
#ifdef CONFIG_NFS_V4_1
if (nfs4_has_session(server->nfs_client))
nfs41_sequence_done(server->nfs_client, res, rpc_status);
#endif /* CONFIG_NFS_V4_1 */
}
static void update_changeattr(struct inode *dir, struct nfs4_change_info *cinfo)
{
struct nfs_inode *nfsi = NFS_I(dir);
@ -745,19 +768,14 @@ static struct nfs4_opendata *nfs4_opendata_alloc(struct path *path,
p->o_arg.server = server;
p->o_arg.bitmask = server->attr_bitmask;
p->o_arg.claim = NFS4_OPEN_CLAIM_NULL;
if (flags & O_EXCL) {
if (nfs4_has_persistent_session(server->nfs_client)) {
/* GUARDED */
p->o_arg.u.attrs = &p->attrs;
memcpy(&p->attrs, attrs, sizeof(p->attrs));
} else { /* EXCLUSIVE4_1 */
u32 *s = (u32 *) p->o_arg.u.verifier.data;
s[0] = jiffies;
s[1] = current->pid;
}
} else if (flags & O_CREAT) {
if (flags & O_CREAT) {
u32 *s;
p->o_arg.u.attrs = &p->attrs;
memcpy(&p->attrs, attrs, sizeof(p->attrs));
s = (u32 *) p->o_arg.u.verifier.data;
s[0] = jiffies;
s[1] = current->pid;
}
p->c_arg.fh = &p->o_res.fh;
p->c_arg.stateid = &p->o_res.stateid;
@ -1255,8 +1273,6 @@ static void nfs4_open_confirm_done(struct rpc_task *task, void *calldata)
struct nfs4_opendata *data = calldata;
data->rpc_status = task->tk_status;
if (RPC_ASSASSINATED(task))
return;
if (data->rpc_status == 0) {
memcpy(data->o_res.stateid.data, data->c_res.stateid.data,
sizeof(data->o_res.stateid.data));
@ -1356,13 +1372,13 @@ static void nfs4_open_prepare(struct rpc_task *task, void *calldata)
}
/* Update sequence id. */
data->o_arg.id = sp->so_owner_id.id;
data->o_arg.clientid = sp->so_client->cl_clientid;
data->o_arg.clientid = sp->so_server->nfs_client->cl_clientid;
if (data->o_arg.claim == NFS4_OPEN_CLAIM_PREVIOUS) {
task->tk_msg.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_OPEN_NOATTR];
nfs_copy_fh(&data->o_res.fh, data->o_arg.fh);
}
data->timestamp = jiffies;
if (nfs4_setup_sequence(data->o_arg.server->nfs_client,
if (nfs4_setup_sequence(data->o_arg.server,
&data->o_arg.seq_args,
&data->o_res.seq_res, 1, task))
return;
@ -1385,11 +1401,9 @@ static void nfs4_open_done(struct rpc_task *task, void *calldata)
data->rpc_status = task->tk_status;
nfs4_sequence_done(data->o_arg.server, &data->o_res.seq_res,
task->tk_status);
if (RPC_ASSASSINATED(task))
if (!nfs4_sequence_done(task, &data->o_res.seq_res))
return;
if (task->tk_status == 0) {
switch (data->o_res.f_attr->mode & S_IFMT) {
case S_IFREG:
@ -1773,7 +1787,7 @@ static int _nfs4_do_setattr(struct inode *inode, struct rpc_cred *cred,
if (nfs4_copy_delegation_stateid(&arg.stateid, inode)) {
/* Use that stateid */
} else if (state != NULL) {
nfs4_copy_stateid(&arg.stateid, state, current->files);
nfs4_copy_stateid(&arg.stateid, state, current->files, current->tgid);
} else
memcpy(&arg.stateid, &zero_stateid, sizeof(arg.stateid));
@ -1838,8 +1852,7 @@ static void nfs4_close_done(struct rpc_task *task, void *data)
struct nfs4_state *state = calldata->state;
struct nfs_server *server = NFS_SERVER(calldata->inode);
nfs4_sequence_done(server, &calldata->res.seq_res, task->tk_status);
if (RPC_ASSASSINATED(task))
if (!nfs4_sequence_done(task, &calldata->res.seq_res))
return;
/* hmm. we are done with the inode, and in the process of freeing
* the state_owner. we keep this around to process errors
@ -1903,7 +1916,7 @@ static void nfs4_close_prepare(struct rpc_task *task, void *data)
nfs_fattr_init(calldata->res.fattr);
calldata->timestamp = jiffies;
if (nfs4_setup_sequence((NFS_SERVER(calldata->inode))->nfs_client,
if (nfs4_setup_sequence(NFS_SERVER(calldata->inode),
&calldata->arg.seq_args, &calldata->res.seq_res,
1, task))
return;
@ -2648,7 +2661,8 @@ static int nfs4_proc_unlink_done(struct rpc_task *task, struct inode *dir)
{
struct nfs_removeres *res = task->tk_msg.rpc_resp;
nfs4_sequence_done(res->server, &res->seq_res, task->tk_status);
if (!nfs4_sequence_done(task, &res->seq_res))
return 0;
if (nfs4_async_handle_error(task, res->server, NULL) == -EAGAIN)
return 0;
update_changeattr(dir, &res->cinfo);
@ -3093,7 +3107,8 @@ static int nfs4_read_done(struct rpc_task *task, struct nfs_read_data *data)
dprintk("--> %s\n", __func__);
nfs4_sequence_done(server, &data->res.seq_res, task->tk_status);
if (!nfs4_sequence_done(task, &data->res.seq_res))
return -EAGAIN;
if (nfs4_async_handle_error(task, server, data->args.context->state) == -EAGAIN) {
nfs_restart_rpc(task, server->nfs_client);
@ -3116,8 +3131,8 @@ static int nfs4_write_done(struct rpc_task *task, struct nfs_write_data *data)
{
struct inode *inode = data->inode;
nfs4_sequence_done(NFS_SERVER(inode), &data->res.seq_res,
task->tk_status);
if (!nfs4_sequence_done(task, &data->res.seq_res))
return -EAGAIN;
if (nfs4_async_handle_error(task, NFS_SERVER(inode), data->args.context->state) == -EAGAIN) {
nfs_restart_rpc(task, NFS_SERVER(inode)->nfs_client);
@ -3145,8 +3160,9 @@ static int nfs4_commit_done(struct rpc_task *task, struct nfs_write_data *data)
{
struct inode *inode = data->inode;
nfs4_sequence_done(NFS_SERVER(inode), &data->res.seq_res,
task->tk_status);
if (!nfs4_sequence_done(task, &data->res.seq_res))
return -EAGAIN;
if (nfs4_async_handle_error(task, NFS_SERVER(inode), NULL) == -EAGAIN) {
nfs_restart_rpc(task, NFS_SERVER(inode)->nfs_client);
return -EAGAIN;
@ -3196,10 +3212,7 @@ static void nfs4_renew_done(struct rpc_task *task, void *calldata)
nfs4_schedule_state_recovery(clp);
return;
}
spin_lock(&clp->cl_lock);
if (time_before(clp->cl_last_renewal,timestamp))
clp->cl_last_renewal = timestamp;
spin_unlock(&clp->cl_lock);
do_renew_lease(clp, timestamp);
}
static const struct rpc_call_ops nfs4_renew_ops = {
@ -3240,10 +3253,7 @@ int nfs4_proc_renew(struct nfs_client *clp, struct rpc_cred *cred)
status = rpc_call_sync(clp->cl_rpcclient, &msg, 0);
if (status < 0)
return status;
spin_lock(&clp->cl_lock);
if (time_before(clp->cl_last_renewal,now))
clp->cl_last_renewal = now;
spin_unlock(&clp->cl_lock);
do_renew_lease(clp, now);
return 0;
}
@ -3464,9 +3474,11 @@ static int nfs4_proc_set_acl(struct inode *inode, const void *buf, size_t buflen
}
static int
_nfs4_async_handle_error(struct rpc_task *task, const struct nfs_server *server, struct nfs_client *clp, struct nfs4_state *state)
nfs4_async_handle_error(struct rpc_task *task, const struct nfs_server *server, struct nfs4_state *state)
{
if (!clp || task->tk_status >= 0)
struct nfs_client *clp = server->nfs_client;
if (task->tk_status >= 0)
return 0;
switch(task->tk_status) {
case -NFS4ERR_ADMIN_REVOKED:
@ -3498,8 +3510,7 @@ _nfs4_async_handle_error(struct rpc_task *task, const struct nfs_server *server,
return -EAGAIN;
#endif /* CONFIG_NFS_V4_1 */
case -NFS4ERR_DELAY:
if (server)
nfs_inc_server_stats(server, NFSIOS_DELAY);
nfs_inc_server_stats(server, NFSIOS_DELAY);
case -NFS4ERR_GRACE:
case -EKEYEXPIRED:
rpc_delay(task, NFS4_POLL_RETRY_MAX);
@ -3520,12 +3531,6 @@ do_state_recovery:
return -EAGAIN;
}
static int
nfs4_async_handle_error(struct rpc_task *task, const struct nfs_server *server, struct nfs4_state *state)
{
return _nfs4_async_handle_error(task, server, server->nfs_client, state);
}
int nfs4_proc_setclientid(struct nfs_client *clp, u32 program,
unsigned short port, struct rpc_cred *cred,
struct nfs4_setclientid_res *res)
@ -3641,8 +3646,8 @@ static void nfs4_delegreturn_done(struct rpc_task *task, void *calldata)
{
struct nfs4_delegreturndata *data = calldata;
nfs4_sequence_done(data->res.server, &data->res.seq_res,
task->tk_status);
if (!nfs4_sequence_done(task, &data->res.seq_res))
return;
switch (task->tk_status) {
case -NFS4ERR_STALE_STATEID:
@ -3672,7 +3677,7 @@ static void nfs4_delegreturn_prepare(struct rpc_task *task, void *data)
d_data = (struct nfs4_delegreturndata *)data;
if (nfs4_setup_sequence(d_data->res.server->nfs_client,
if (nfs4_setup_sequence(d_data->res.server,
&d_data->args.seq_args,
&d_data->res.seq_res, 1, task))
return;
@ -3892,9 +3897,7 @@ static void nfs4_locku_done(struct rpc_task *task, void *data)
{
struct nfs4_unlockdata *calldata = data;
nfs4_sequence_done(calldata->server, &calldata->res.seq_res,
task->tk_status);
if (RPC_ASSASSINATED(task))
if (!nfs4_sequence_done(task, &calldata->res.seq_res))
return;
switch (task->tk_status) {
case 0:
@ -3927,7 +3930,7 @@ static void nfs4_locku_prepare(struct rpc_task *task, void *data)
return;
}
calldata->timestamp = jiffies;
if (nfs4_setup_sequence(calldata->server->nfs_client,
if (nfs4_setup_sequence(calldata->server,
&calldata->arg.seq_args,
&calldata->res.seq_res, 1, task))
return;
@ -4082,7 +4085,8 @@ static void nfs4_lock_prepare(struct rpc_task *task, void *calldata)
} else
data->arg.new_lock_owner = 0;
data->timestamp = jiffies;
if (nfs4_setup_sequence(data->server->nfs_client, &data->arg.seq_args,
if (nfs4_setup_sequence(data->server,
&data->arg.seq_args,
&data->res.seq_res, 1, task))
return;
rpc_call_start(task);
@ -4101,12 +4105,10 @@ static void nfs4_lock_done(struct rpc_task *task, void *calldata)
dprintk("%s: begin!\n", __func__);
nfs4_sequence_done(data->server, &data->res.seq_res,
task->tk_status);
if (!nfs4_sequence_done(task, &data->res.seq_res))
return;
data->rpc_status = task->tk_status;
if (RPC_ASSASSINATED(task))
goto out;
if (data->arg.new_lock_owner != 0) {
if (data->rpc_status == 0)
nfs_confirm_seqid(&data->lsp->ls_seqid, 0);
@ -4424,6 +4426,34 @@ out:
return err;
}
static void nfs4_release_lockowner_release(void *calldata)
{
kfree(calldata);
}
const struct rpc_call_ops nfs4_release_lockowner_ops = {
.rpc_release = nfs4_release_lockowner_release,
};
void nfs4_release_lockowner(const struct nfs4_lock_state *lsp)
{
struct nfs_server *server = lsp->ls_state->owner->so_server;
struct nfs_release_lockowner_args *args;
struct rpc_message msg = {
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_RELEASE_LOCKOWNER],
};
if (server->nfs_client->cl_mvops->minor_version != 0)
return;
args = kmalloc(sizeof(*args), GFP_NOFS);
if (!args)
return;
args->lock_owner.clientid = server->nfs_client->cl_clientid;
args->lock_owner.id = lsp->ls_id.id;
msg.rpc_argp = args;
rpc_call_async(server->client, &msg, 0, &nfs4_release_lockowner_ops, args);
}
#define XATTR_NAME_NFSV4_ACL "system.nfs4_acl"
int nfs4_setxattr(struct dentry *dentry, const char *key, const void *buf,
@ -4611,7 +4641,8 @@ static void nfs4_get_lease_time_done(struct rpc_task *task, void *calldata)
(struct nfs4_get_lease_time_data *)calldata;
dprintk("--> %s\n", __func__);
nfs41_sequence_done(data->clp, &data->res->lr_seq_res, task->tk_status);
if (!nfs41_sequence_done(task, &data->res->lr_seq_res))
return;
switch (task->tk_status) {
case -NFS4ERR_DELAY:
case -NFS4ERR_GRACE:
@ -4805,13 +4836,6 @@ struct nfs4_session *nfs4_alloc_session(struct nfs_client *clp)
if (!session)
return NULL;
/*
* The create session reply races with the server back
* channel probe. Mark the client NFS_CS_SESSION_INITING
* so that the client back channel can find the
* nfs_client struct
*/
clp->cl_cons_state = NFS_CS_SESSION_INITING;
init_completion(&session->complete);
tbl = &session->fc_slot_table;
@ -4824,6 +4848,8 @@ struct nfs4_session *nfs4_alloc_session(struct nfs_client *clp)
spin_lock_init(&tbl->slot_tbl_lock);
rpc_init_wait_queue(&tbl->slot_tbl_waitq, "BackChannel Slot table");
session->session_state = 1<<NFS4_SESSION_INITING;
session->clp = clp;
return session;
}
@ -5040,6 +5066,10 @@ int nfs4_init_session(struct nfs_server *server)
if (!nfs4_has_session(clp))
return 0;
session = clp->cl_session;
if (!test_and_clear_bit(NFS4_SESSION_INITING, &session->session_state))
return 0;
rsize = server->rsize;
if (rsize == 0)
rsize = NFS_MAX_FILE_IO_SIZE;
@ -5047,7 +5077,6 @@ int nfs4_init_session(struct nfs_server *server)
if (wsize == 0)
wsize = NFS_MAX_FILE_IO_SIZE;
session = clp->cl_session;
session->fc_attrs.max_rqst_sz = wsize + nfs41_maxwrite_overhead;
session->fc_attrs.max_resp_sz = rsize + nfs41_maxread_overhead;
@ -5060,69 +5089,70 @@ int nfs4_init_session(struct nfs_server *server)
/*
* Renew the cl_session lease.
*/
static int nfs4_proc_sequence(struct nfs_client *clp, struct rpc_cred *cred)
{
struct nfs4_sequence_data {
struct nfs_client *clp;
struct nfs4_sequence_args args;
struct nfs4_sequence_res res;
struct rpc_message msg = {
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_SEQUENCE],
.rpc_argp = &args,
.rpc_resp = &res,
.rpc_cred = cred,
};
args.sa_cache_this = 0;
return nfs4_call_sync_sequence(clp, clp->cl_rpcclient, &msg, &args,
&res, args.sa_cache_this, 1);
}
};
static void nfs41_sequence_release(void *data)
{
struct nfs_client *clp = (struct nfs_client *)data;
struct nfs4_sequence_data *calldata = data;
struct nfs_client *clp = calldata->clp;
if (atomic_read(&clp->cl_count) > 1)
nfs4_schedule_state_renewal(clp);
nfs_put_client(clp);
kfree(calldata);
}
static int nfs41_sequence_handle_errors(struct rpc_task *task, struct nfs_client *clp)
{
switch(task->tk_status) {
case -NFS4ERR_DELAY:
case -EKEYEXPIRED:
rpc_delay(task, NFS4_POLL_RETRY_MAX);
return -EAGAIN;
default:
nfs4_schedule_state_recovery(clp);
}
return 0;
}
static void nfs41_sequence_call_done(struct rpc_task *task, void *data)
{
struct nfs_client *clp = (struct nfs_client *)data;
struct nfs4_sequence_data *calldata = data;
struct nfs_client *clp = calldata->clp;
nfs41_sequence_done(clp, task->tk_msg.rpc_resp, task->tk_status);
if (!nfs41_sequence_done(task, task->tk_msg.rpc_resp))
return;
if (task->tk_status < 0) {
dprintk("%s ERROR %d\n", __func__, task->tk_status);
if (atomic_read(&clp->cl_count) == 1)
goto out;
if (_nfs4_async_handle_error(task, NULL, clp, NULL)
== -EAGAIN) {
nfs_restart_rpc(task, clp);
if (nfs41_sequence_handle_errors(task, clp) == -EAGAIN) {
rpc_restart_call_prepare(task);
return;
}
}
dprintk("%s rpc_cred %p\n", __func__, task->tk_msg.rpc_cred);
out:
kfree(task->tk_msg.rpc_argp);
kfree(task->tk_msg.rpc_resp);
dprintk("<-- %s\n", __func__);
}
static void nfs41_sequence_prepare(struct rpc_task *task, void *data)
{
struct nfs_client *clp;
struct nfs4_sequence_data *calldata = data;
struct nfs_client *clp = calldata->clp;
struct nfs4_sequence_args *args;
struct nfs4_sequence_res *res;
clp = (struct nfs_client *)data;
args = task->tk_msg.rpc_argp;
res = task->tk_msg.rpc_resp;
if (nfs4_setup_sequence(clp, args, res, 0, task))
if (nfs41_setup_sequence(clp->cl_session, args, res, 0, task))
return;
rpc_call_start(task);
}
@ -5133,32 +5163,67 @@ static const struct rpc_call_ops nfs41_sequence_ops = {
.rpc_release = nfs41_sequence_release,
};
static int nfs41_proc_async_sequence(struct nfs_client *clp,
struct rpc_cred *cred)
static struct rpc_task *_nfs41_proc_sequence(struct nfs_client *clp, struct rpc_cred *cred)
{
struct nfs4_sequence_args *args;
struct nfs4_sequence_res *res;
struct nfs4_sequence_data *calldata;
struct rpc_message msg = {
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_SEQUENCE],
.rpc_cred = cred,
};
struct rpc_task_setup task_setup_data = {
.rpc_client = clp->cl_rpcclient,
.rpc_message = &msg,
.callback_ops = &nfs41_sequence_ops,
.flags = RPC_TASK_ASYNC | RPC_TASK_SOFT,
};
if (!atomic_inc_not_zero(&clp->cl_count))
return -EIO;
args = kzalloc(sizeof(*args), GFP_NOFS);
res = kzalloc(sizeof(*res), GFP_NOFS);
if (!args || !res) {
kfree(args);
kfree(res);
return ERR_PTR(-EIO);
calldata = kmalloc(sizeof(*calldata), GFP_NOFS);
if (calldata == NULL) {
nfs_put_client(clp);
return -ENOMEM;
return ERR_PTR(-ENOMEM);
}
res->sr_slotid = NFS4_MAX_SLOT_TABLE;
msg.rpc_argp = args;
msg.rpc_resp = res;
calldata->res.sr_slotid = NFS4_MAX_SLOT_TABLE;
msg.rpc_argp = &calldata->args;
msg.rpc_resp = &calldata->res;
calldata->clp = clp;
task_setup_data.callback_data = calldata;
return rpc_call_async(clp->cl_rpcclient, &msg, RPC_TASK_SOFT,
&nfs41_sequence_ops, (void *)clp);
return rpc_run_task(&task_setup_data);
}
static int nfs41_proc_async_sequence(struct nfs_client *clp, struct rpc_cred *cred)
{
struct rpc_task *task;
int ret = 0;
task = _nfs41_proc_sequence(clp, cred);
if (IS_ERR(task))
ret = PTR_ERR(task);
else
rpc_put_task(task);
dprintk("<-- %s status=%d\n", __func__, ret);
return ret;
}
static int nfs4_proc_sequence(struct nfs_client *clp, struct rpc_cred *cred)
{
struct rpc_task *task;
int ret;
task = _nfs41_proc_sequence(clp, cred);
if (IS_ERR(task)) {
ret = PTR_ERR(task);
goto out;
}
ret = rpc_wait_for_completion_task(task);
if (!ret)
ret = task->tk_status;
rpc_put_task(task);
out:
dprintk("<-- %s status=%d\n", __func__, ret);
return ret;
}
struct nfs4_reclaim_complete_data {
@ -5172,13 +5237,31 @@ static void nfs4_reclaim_complete_prepare(struct rpc_task *task, void *data)
struct nfs4_reclaim_complete_data *calldata = data;
rpc_task_set_priority(task, RPC_PRIORITY_PRIVILEGED);
if (nfs4_setup_sequence(calldata->clp, &calldata->arg.seq_args,
if (nfs41_setup_sequence(calldata->clp->cl_session,
&calldata->arg.seq_args,
&calldata->res.seq_res, 0, task))
return;
rpc_call_start(task);
}
static int nfs41_reclaim_complete_handle_errors(struct rpc_task *task, struct nfs_client *clp)
{
switch(task->tk_status) {
case 0:
case -NFS4ERR_COMPLETE_ALREADY:
case -NFS4ERR_WRONG_CRED: /* What to do here? */
break;
case -NFS4ERR_DELAY:
case -EKEYEXPIRED:
rpc_delay(task, NFS4_POLL_RETRY_MAX);
return -EAGAIN;
default:
nfs4_schedule_state_recovery(clp);
}
return 0;
}
static void nfs4_reclaim_complete_done(struct rpc_task *task, void *data)
{
struct nfs4_reclaim_complete_data *calldata = data;
@ -5186,32 +5269,13 @@ static void nfs4_reclaim_complete_done(struct rpc_task *task, void *data)
struct nfs4_sequence_res *res = &calldata->res.seq_res;
dprintk("--> %s\n", __func__);
nfs41_sequence_done(clp, res, task->tk_status);
switch (task->tk_status) {
case 0:
case -NFS4ERR_COMPLETE_ALREADY:
break;
case -NFS4ERR_BADSESSION:
case -NFS4ERR_DEADSESSION:
/*
* Handle the session error, but do not retry the operation, as
* we have no way of telling whether the clientid had to be
* reset before we got our reply. If reset, a new wave of
* reclaim operations will follow, containing their own reclaim
* complete. We don't want our retry to get on the way of
* recovery by incorrectly indicating to the server that we're
* done reclaiming state since the process had to be restarted.
*/
_nfs4_async_handle_error(task, NULL, clp, NULL);
break;
default:
if (_nfs4_async_handle_error(
task, NULL, clp, NULL) == -EAGAIN) {
rpc_restart_call_prepare(task);
return;
}
}
if (!nfs41_sequence_done(task, res))
return;
if (nfs41_reclaim_complete_handle_errors(task, clp) == -EAGAIN) {
rpc_restart_call_prepare(task);
return;
}
dprintk("<-- %s\n", __func__);
}
@ -5325,28 +5389,30 @@ struct nfs4_state_maintenance_ops nfs41_state_renewal_ops = {
};
#endif
/*
* Per minor version reboot and network partition recovery ops
*/
struct nfs4_state_recovery_ops *nfs4_reboot_recovery_ops[] = {
&nfs40_reboot_recovery_ops,
#if defined(CONFIG_NFS_V4_1)
&nfs41_reboot_recovery_ops,
#endif
static const struct nfs4_minor_version_ops nfs_v4_0_minor_ops = {
.minor_version = 0,
.call_sync = _nfs4_call_sync,
.validate_stateid = nfs4_validate_delegation_stateid,
.reboot_recovery_ops = &nfs40_reboot_recovery_ops,
.nograce_recovery_ops = &nfs40_nograce_recovery_ops,
.state_renewal_ops = &nfs40_state_renewal_ops,
};
struct nfs4_state_recovery_ops *nfs4_nograce_recovery_ops[] = {
&nfs40_nograce_recovery_ops,
#if defined(CONFIG_NFS_V4_1)
&nfs41_nograce_recovery_ops,
#endif
static const struct nfs4_minor_version_ops nfs_v4_1_minor_ops = {
.minor_version = 1,
.call_sync = _nfs4_call_sync_session,
.validate_stateid = nfs41_validate_delegation_stateid,
.reboot_recovery_ops = &nfs41_reboot_recovery_ops,
.nograce_recovery_ops = &nfs41_nograce_recovery_ops,
.state_renewal_ops = &nfs41_state_renewal_ops,
};
#endif
struct nfs4_state_maintenance_ops *nfs4_state_renewal_ops[] = {
&nfs40_state_renewal_ops,
const struct nfs4_minor_version_ops *nfs_v4_minor_ops[] = {
[0] = &nfs_v4_0_minor_ops,
#if defined(CONFIG_NFS_V4_1)
&nfs41_state_renewal_ops,
[1] = &nfs_v4_1_minor_ops,
#endif
};

4
fs/nfs/nfs4renewd.c
View File

@ -54,14 +54,14 @@
void
nfs4_renew_state(struct work_struct *work)
{
struct nfs4_state_maintenance_ops *ops;
const struct nfs4_state_maintenance_ops *ops;
struct nfs_client *clp =
container_of(work, struct nfs_client, cl_renewd.work);
struct rpc_cred *cred;
long lease;
unsigned long last, now;
ops = nfs4_state_renewal_ops[clp->cl_minorversion];
ops = clp->cl_mvops->state_renewal_ops;
dprintk("%s: start\n", __func__);
/* Are there any active superblocks? */
if (list_empty(&clp->cl_superblocks))

82
fs/nfs/nfs4state.c
View File

@ -145,7 +145,9 @@ static void nfs4_end_drain_session(struct nfs_client *clp)
struct nfs4_session *ses = clp->cl_session;
int max_slots;
if (test_and_clear_bit(NFS4CLNT_SESSION_DRAINING, &clp->cl_state)) {
if (ses == NULL)
return;
if (test_and_clear_bit(NFS4_SESSION_DRAINING, &ses->session_state)) {
spin_lock(&ses->fc_slot_table.slot_tbl_lock);
max_slots = ses->fc_slot_table.max_slots;
while (max_slots--) {
@ -167,7 +169,7 @@ static int nfs4_begin_drain_session(struct nfs_client *clp)
struct nfs4_slot_table *tbl = &ses->fc_slot_table;
spin_lock(&tbl->slot_tbl_lock);
set_bit(NFS4CLNT_SESSION_DRAINING, &clp->cl_state);
set_bit(NFS4_SESSION_DRAINING, &ses->session_state);
if (tbl->highest_used_slotid != -1) {
INIT_COMPLETION(ses->complete);
spin_unlock(&tbl->slot_tbl_lock);
@ -371,7 +373,6 @@ nfs4_alloc_state_owner(void)
return NULL;
spin_lock_init(&sp->so_lock);
INIT_LIST_HEAD(&sp->so_states);
INIT_LIST_HEAD(&sp->so_delegations);
rpc_init_wait_queue(&sp->so_sequence.wait, "Seqid_waitqueue");
sp->so_seqid.sequence = &sp->so_sequence;
spin_lock_init(&sp->so_sequence.lock);
@ -384,7 +385,7 @@ static void
nfs4_drop_state_owner(struct nfs4_state_owner *sp)
{
if (!RB_EMPTY_NODE(&sp->so_client_node)) {
struct nfs_client *clp = sp->so_client;
struct nfs_client *clp = sp->so_server->nfs_client;
spin_lock(&clp->cl_lock);
rb_erase(&sp->so_client_node, &clp->cl_state_owners);
@ -406,7 +407,6 @@ struct nfs4_state_owner *nfs4_get_state_owner(struct nfs_server *server, struct
new = nfs4_alloc_state_owner();
if (new == NULL)
return NULL;
new->so_client = clp;
new->so_server = server;
new->so_cred = cred;
spin_lock(&clp->cl_lock);
@ -423,7 +423,7 @@ struct nfs4_state_owner *nfs4_get_state_owner(struct nfs_server *server, struct
void nfs4_put_state_owner(struct nfs4_state_owner *sp)
{
struct nfs_client *clp = sp->so_client;
struct nfs_client *clp = sp->so_server->nfs_client;
struct rpc_cred *cred = sp->so_cred;
if (!atomic_dec_and_lock(&sp->so_count, &clp->cl_lock))
@ -602,12 +602,21 @@ void nfs4_close_sync(struct path *path, struct nfs4_state *state, fmode_t fmode)
* that is compatible with current->files
*/
static struct nfs4_lock_state *
__nfs4_find_lock_state(struct nfs4_state *state, fl_owner_t fl_owner)
__nfs4_find_lock_state(struct nfs4_state *state, fl_owner_t fl_owner, pid_t fl_pid, unsigned int type)
{
struct nfs4_lock_state *pos;
list_for_each_entry(pos, &state->lock_states, ls_locks) {
if (pos->ls_owner != fl_owner)
if (type != NFS4_ANY_LOCK_TYPE && pos->ls_owner.lo_type != type)
continue;
switch (pos->ls_owner.lo_type) {
case NFS4_POSIX_LOCK_TYPE:
if (pos->ls_owner.lo_u.posix_owner != fl_owner)
continue;
break;
case NFS4_FLOCK_LOCK_TYPE:
if (pos->ls_owner.lo_u.flock_owner != fl_pid)
continue;
}
atomic_inc(&pos->ls_count);
return pos;
}
@ -619,10 +628,10 @@ __nfs4_find_lock_state(struct nfs4_state *state, fl_owner_t fl_owner)
* exists, return an uninitialized one.
*
*/
static struct nfs4_lock_state *nfs4_alloc_lock_state(struct nfs4_state *state, fl_owner_t fl_owner)
static struct nfs4_lock_state *nfs4_alloc_lock_state(struct nfs4_state *state, fl_owner_t fl_owner, pid_t fl_pid, unsigned int type)
{
struct nfs4_lock_state *lsp;
struct nfs_client *clp = state->owner->so_client;
struct nfs_client *clp = state->owner->so_server->nfs_client;
lsp = kzalloc(sizeof(*lsp), GFP_NOFS);
if (lsp == NULL)
@ -633,7 +642,18 @@ static struct nfs4_lock_state *nfs4_alloc_lock_state(struct nfs4_state *state, f
lsp->ls_seqid.sequence = &lsp->ls_sequence;
atomic_set(&lsp->ls_count, 1);
lsp->ls_state = state;
lsp->ls_owner = fl_owner;
lsp->ls_owner.lo_type = type;
switch (lsp->ls_owner.lo_type) {
case NFS4_FLOCK_LOCK_TYPE:
lsp->ls_owner.lo_u.flock_owner = fl_pid;
break;
case NFS4_POSIX_LOCK_TYPE:
lsp->ls_owner.lo_u.posix_owner = fl_owner;
break;
default:
kfree(lsp);
return NULL;
}
spin_lock(&clp->cl_lock);
nfs_alloc_unique_id(&clp->cl_lockowner_id, &lsp->ls_id, 1, 64);
spin_unlock(&clp->cl_lock);
@ -643,7 +663,7 @@ static struct nfs4_lock_state *nfs4_alloc_lock_state(struct nfs4_state *state, f
static void nfs4_free_lock_state(struct nfs4_lock_state *lsp)
{
struct nfs_client *clp = lsp->ls_state->owner->so_client;
struct nfs_client *clp = lsp->ls_state->owner->so_server->nfs_client;
spin_lock(&clp->cl_lock);
nfs_free_unique_id(&clp->cl_lockowner_id, &lsp->ls_id);
@ -657,13 +677,13 @@ static void nfs4_free_lock_state(struct nfs4_lock_state *lsp)
* exists, return an uninitialized one.
*
*/
static struct nfs4_lock_state *nfs4_get_lock_state(struct nfs4_state *state, fl_owner_t owner)
static struct nfs4_lock_state *nfs4_get_lock_state(struct nfs4_state *state, fl_owner_t owner, pid_t pid, unsigned int type)
{
struct nfs4_lock_state *lsp, *new = NULL;
for(;;) {
spin_lock(&state->state_lock);
lsp = __nfs4_find_lock_state(state, owner);
lsp = __nfs4_find_lock_state(state, owner, pid, type);
if (lsp != NULL)
break;
if (new != NULL) {
@ -674,7 +694,7 @@ static struct nfs4_lock_state *nfs4_get_lock_state(struct nfs4_state *state, fl_
break;
}
spin_unlock(&state->state_lock);
new = nfs4_alloc_lock_state(state, owner);
new = nfs4_alloc_lock_state(state, owner, pid, type);
if (new == NULL)
return NULL;
}
@ -701,6 +721,8 @@ void nfs4_put_lock_state(struct nfs4_lock_state *lsp)
if (list_empty(&state->lock_states))
clear_bit(LK_STATE_IN_USE, &state->flags);
spin_unlock(&state->state_lock);
if (lsp->ls_flags & NFS_LOCK_INITIALIZED)
nfs4_release_lockowner(lsp);
nfs4_free_lock_state(lsp);
}
@ -728,7 +750,12 @@ int nfs4_set_lock_state(struct nfs4_state *state, struct file_lock *fl)
if (fl->fl_ops != NULL)
return 0;
lsp = nfs4_get_lock_state(state, fl->fl_owner);
if (fl->fl_flags & FL_POSIX)
lsp = nfs4_get_lock_state(state, fl->fl_owner, 0, NFS4_POSIX_LOCK_TYPE);
else if (fl->fl_flags & FL_FLOCK)
lsp = nfs4_get_lock_state(state, 0, fl->fl_pid, NFS4_FLOCK_LOCK_TYPE);
else
return -EINVAL;
if (lsp == NULL)
return -ENOMEM;
fl->fl_u.nfs4_fl.owner = lsp;
@ -740,7 +767,7 @@ int nfs4_set_lock_state(struct nfs4_state *state, struct file_lock *fl)
* Byte-range lock aware utility to initialize the stateid of read/write
* requests.
*/
void nfs4_copy_stateid(nfs4_stateid *dst, struct nfs4_state *state, fl_owner_t fl_owner)
void nfs4_copy_stateid(nfs4_stateid *dst, struct nfs4_state *state, fl_owner_t fl_owner, pid_t fl_pid)
{
struct nfs4_lock_state *lsp;
int seq;
@ -753,7 +780,7 @@ void nfs4_copy_stateid(nfs4_stateid *dst, struct nfs4_state *state, fl_owner_t f
return;
spin_lock(&state->state_lock);
lsp = __nfs4_find_lock_state(state, fl_owner);
lsp = __nfs4_find_lock_state(state, fl_owner, fl_pid, NFS4_ANY_LOCK_TYPE);
if (lsp != NULL && (lsp->ls_flags & NFS_LOCK_INITIALIZED) != 0)
memcpy(dst, &lsp->ls_stateid, sizeof(*dst));
spin_unlock(&state->state_lock);
@ -1041,11 +1068,11 @@ restart:
case -NFS4ERR_BAD_STATEID:
case -NFS4ERR_RECLAIM_BAD:
case -NFS4ERR_RECLAIM_CONFLICT:
nfs4_state_mark_reclaim_nograce(sp->so_client, state);
nfs4_state_mark_reclaim_nograce(sp->so_server->nfs_client, state);
break;
case -NFS4ERR_EXPIRED:
case -NFS4ERR_NO_GRACE:
nfs4_state_mark_reclaim_nograce(sp->so_client, state);
nfs4_state_mark_reclaim_nograce(sp->so_server->nfs_client, state);
case -NFS4ERR_STALE_CLIENTID:
case -NFS4ERR_BADSESSION:
case -NFS4ERR_BADSLOT:
@ -1120,8 +1147,7 @@ static void nfs4_state_end_reclaim_reboot(struct nfs_client *clp)
if (!test_and_clear_bit(NFS4CLNT_RECLAIM_REBOOT, &clp->cl_state))
return;
nfs4_reclaim_complete(clp,
nfs4_reboot_recovery_ops[clp->cl_minorversion]);
nfs4_reclaim_complete(clp, clp->cl_mvops->reboot_recovery_ops);
for (pos = rb_first(&clp->cl_state_owners); pos != NULL; pos = rb_next(pos)) {
sp = rb_entry(pos, struct nfs4_state_owner, so_client_node);
@ -1211,8 +1237,8 @@ restart:
static int nfs4_check_lease(struct nfs_client *clp)
{
struct rpc_cred *cred;
struct nfs4_state_maintenance_ops *ops =
nfs4_state_renewal_ops[clp->cl_minorversion];
const struct nfs4_state_maintenance_ops *ops =
clp->cl_mvops->state_renewal_ops;
int status = -NFS4ERR_EXPIRED;
/* Is the client already known to have an expired lease? */
@ -1235,8 +1261,8 @@ out:
static int nfs4_reclaim_lease(struct nfs_client *clp)
{
struct rpc_cred *cred;
struct nfs4_state_recovery_ops *ops =
nfs4_reboot_recovery_ops[clp->cl_minorversion];
const struct nfs4_state_recovery_ops *ops =
clp->cl_mvops->reboot_recovery_ops;
int status = -ENOENT;
cred = ops->get_clid_cred(clp);
@ -1444,7 +1470,7 @@ static void nfs4_state_manager(struct nfs_client *clp)
/* First recover reboot state... */
if (test_bit(NFS4CLNT_RECLAIM_REBOOT, &clp->cl_state)) {
status = nfs4_do_reclaim(clp,
nfs4_reboot_recovery_ops[clp->cl_minorversion]);
clp->cl_mvops->reboot_recovery_ops);
if (test_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state) ||
test_bit(NFS4CLNT_SESSION_RESET, &clp->cl_state))
continue;
@ -1458,7 +1484,7 @@ static void nfs4_state_manager(struct nfs_client *clp)
/* Now recover expired state... */
if (test_and_clear_bit(NFS4CLNT_RECLAIM_NOGRACE, &clp->cl_state)) {
status = nfs4_do_reclaim(clp,
nfs4_nograce_recovery_ops[clp->cl_minorversion]);
clp->cl_mvops->nograce_recovery_ops);
if (test_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state) ||
test_bit(NFS4CLNT_SESSION_RESET, &clp->cl_state) ||
test_bit(NFS4CLNT_RECLAIM_REBOOT, &clp->cl_state))

107
fs/nfs/nfs4xdr.c
View File

@ -202,14 +202,17 @@ static int nfs4_stat_to_errno(int);
#define encode_link_maxsz (op_encode_hdr_maxsz + \
nfs4_name_maxsz)
#define decode_link_maxsz (op_decode_hdr_maxsz + decode_change_info_maxsz)
#define encode_lockowner_maxsz (7)
#define encode_lock_maxsz (op_encode_hdr_maxsz + \
7 + \
1 + encode_stateid_maxsz + 8)
1 + encode_stateid_maxsz + 1 + \
encode_lockowner_maxsz)
#define decode_lock_denied_maxsz \
(8 + decode_lockowner_maxsz)
#define decode_lock_maxsz (op_decode_hdr_maxsz + \
decode_lock_denied_maxsz)
#define encode_lockt_maxsz (op_encode_hdr_maxsz + 12)
#define encode_lockt_maxsz (op_encode_hdr_maxsz + 5 + \
encode_lockowner_maxsz)
#define decode_lockt_maxsz (op_decode_hdr_maxsz + \
decode_lock_denied_maxsz)
#define encode_locku_maxsz (op_encode_hdr_maxsz + 3 + \
@ -217,6 +220,11 @@ static int nfs4_stat_to_errno(int);
4)
#define decode_locku_maxsz (op_decode_hdr_maxsz + \
decode_stateid_maxsz)
#define encode_release_lockowner_maxsz \
(op_encode_hdr_maxsz + \
encode_lockowner_maxsz)
#define decode_release_lockowner_maxsz \
(op_decode_hdr_maxsz)
#define encode_access_maxsz (op_encode_hdr_maxsz + 1)
#define decode_access_maxsz (op_decode_hdr_maxsz + 2)
#define encode_symlink_maxsz (op_encode_hdr_maxsz + \
@ -471,6 +479,12 @@ static int nfs4_stat_to_errno(int);
decode_sequence_maxsz + \
decode_putfh_maxsz + \
decode_locku_maxsz)
#define NFS4_enc_release_lockowner_sz \
(compound_encode_hdr_maxsz + \
encode_lockowner_maxsz)
#define NFS4_dec_release_lockowner_sz \
(compound_decode_hdr_maxsz + \
decode_lockowner_maxsz)
#define NFS4_enc_access_sz (compound_encode_hdr_maxsz + \
encode_sequence_maxsz + \
encode_putfh_maxsz + \
@ -744,7 +758,7 @@ static void encode_compound_hdr(struct xdr_stream *xdr,
struct compound_hdr *hdr)
{
__be32 *p;
struct rpc_auth *auth = req->rq_task->tk_msg.rpc_cred->cr_auth;
struct rpc_auth *auth = req->rq_cred->cr_auth;
/* initialize running count of expected bytes in reply.
* NOTE: the replied tag SHOULD be the same is the one sent,
@ -1042,6 +1056,17 @@ static inline uint64_t nfs4_lock_length(struct file_lock *fl)
return fl->fl_end - fl->fl_start + 1;
}
static void encode_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner)
{
__be32 *p;
p = reserve_space(xdr, 28);
p = xdr_encode_hyper(p, lowner->clientid);
*p++ = cpu_to_be32(16);
p = xdr_encode_opaque_fixed(p, "lock id:", 8);
xdr_encode_hyper(p, lowner->id);
}
/*
* opcode,type,reclaim,offset,length,new_lock_owner = 32
* open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40
@ -1058,14 +1083,11 @@ static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args
p = xdr_encode_hyper(p, nfs4_lock_length(args->fl));
*p = cpu_to_be32(args->new_lock_owner);
if (args->new_lock_owner){
p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+32);
p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4);
*p++ = cpu_to_be32(args->open_seqid->sequence->counter);
p = xdr_encode_opaque_fixed(p, args->open_stateid->data, NFS4_STATEID_SIZE);
*p++ = cpu_to_be32(args->lock_seqid->sequence->counter);
p = xdr_encode_hyper(p, args->lock_owner.clientid);
*p++ = cpu_to_be32(16);
p = xdr_encode_opaque_fixed(p, "lock id:", 8);
xdr_encode_hyper(p, args->lock_owner.id);
encode_lockowner(xdr, &args->lock_owner);
}
else {
p = reserve_space(xdr, NFS4_STATEID_SIZE+4);
@ -1080,15 +1102,12 @@ static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *ar
{
__be32 *p;
p = reserve_space(xdr, 52);
p = reserve_space(xdr, 24);
*p++ = cpu_to_be32(OP_LOCKT);
*p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0));
p = xdr_encode_hyper(p, args->fl->fl_start);
p = xdr_encode_hyper(p, nfs4_lock_length(args->fl));
p = xdr_encode_hyper(p, args->lock_owner.clientid);
*p++ = cpu_to_be32(16);
p = xdr_encode_opaque_fixed(p, "lock id:", 8);
xdr_encode_hyper(p, args->lock_owner.id);
encode_lockowner(xdr, &args->lock_owner);
hdr->nops++;
hdr->replen += decode_lockt_maxsz;
}
@ -1108,6 +1127,17 @@ static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *ar
hdr->replen += decode_locku_maxsz;
}
static void encode_release_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner, struct compound_hdr *hdr)
{
__be32 *p;
p = reserve_space(xdr, 4);
*p = cpu_to_be32(OP_RELEASE_LOCKOWNER);
encode_lockowner(xdr, lowner);
hdr->nops++;
hdr->replen += decode_release_lockowner_maxsz;
}
static void encode_lookup(struct xdr_stream *xdr, const struct qstr *name, struct compound_hdr *hdr)
{
int len = name->len;
@ -1172,7 +1202,7 @@ static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_op
break;
default:
clp = arg->server->nfs_client;
if (clp->cl_minorversion > 0) {
if (clp->cl_mvops->minor_version > 0) {
if (nfs4_has_persistent_session(clp)) {
*p = cpu_to_be32(NFS4_CREATE_GUARDED);
encode_attrs(xdr, arg->u.attrs, arg->server);
@ -1324,14 +1354,14 @@ static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr)
hdr->replen += decode_putrootfh_maxsz;
}
static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx)
static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx, const struct nfs_lock_context *l_ctx)
{
nfs4_stateid stateid;
__be32 *p;
p = reserve_space(xdr, NFS4_STATEID_SIZE);
if (ctx->state != NULL) {
nfs4_copy_stateid(&stateid, ctx->state, ctx->lockowner);
nfs4_copy_stateid(&stateid, ctx->state, l_ctx->lockowner, l_ctx->pid);
xdr_encode_opaque_fixed(p, stateid.data, NFS4_STATEID_SIZE);
} else
xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE);
@ -1344,7 +1374,7 @@ static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args,
p = reserve_space(xdr, 4);
*p = cpu_to_be32(OP_READ);
encode_stateid(xdr, args->context);
encode_stateid(xdr, args->context, args->lock_context);
p = reserve_space(xdr, 12);
p = xdr_encode_hyper(p, args->offset);
@ -1523,7 +1553,7 @@ static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *arg
p = reserve_space(xdr, 4);
*p = cpu_to_be32(OP_WRITE);
encode_stateid(xdr, args->context);
encode_stateid(xdr, args->context, args->lock_context);
p = reserve_space(xdr, 16);
p = xdr_encode_hyper(p, args->offset);
@ -1704,7 +1734,7 @@ static u32 nfs4_xdr_minorversion(const struct nfs4_sequence_args *args)
{
#if defined(CONFIG_NFS_V4_1)
if (args->sa_session)
return args->sa_session->clp->cl_minorversion;
return args->sa_session->clp->cl_mvops->minor_version;
#endif /* CONFIG_NFS_V4_1 */
return 0;
}
@ -2048,6 +2078,20 @@ static int nfs4_xdr_enc_locku(struct rpc_rqst *req, __be32 *p, struct nfs_locku_
return 0;
}
static int nfs4_xdr_enc_release_lockowner(struct rpc_rqst *req, __be32 *p, struct nfs_release_lockowner_args *args)
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
.minorversion = 0,
};
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
encode_compound_hdr(&xdr, req, &hdr);
encode_release_lockowner(&xdr, &args->lock_owner, &hdr);
encode_nops(&hdr);
return 0;
}
/*
* Encode a READLINK request
*/
@ -2395,7 +2439,7 @@ static int nfs4_xdr_enc_exchange_id(struct rpc_rqst *req, uint32_t *p,
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
.minorversion = args->client->cl_minorversion,
.minorversion = args->client->cl_mvops->minor_version,
};
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
@ -2413,7 +2457,7 @@ static int nfs4_xdr_enc_create_session(struct rpc_rqst *req, uint32_t *p,
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
.minorversion = args->client->cl_minorversion,
.minorversion = args->client->cl_mvops->minor_version,
};
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
@ -2431,7 +2475,7 @@ static int nfs4_xdr_enc_destroy_session(struct rpc_rqst *req, uint32_t *p,
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
.minorversion = session->clp->cl_minorversion,
.minorversion = session->clp->cl_mvops->minor_version,
};
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
@ -3973,6 +4017,11 @@ static int decode_locku(struct xdr_stream *xdr, struct nfs_locku_res *res)
return status;
}
static int decode_release_lockowner(struct xdr_stream *xdr)
{
return decode_op_hdr(xdr, OP_RELEASE_LOCKOWNER);
}
static int decode_lookup(struct xdr_stream *xdr)
{
return decode_op_hdr(xdr, OP_LOOKUP);
@ -5259,6 +5308,19 @@ out:
return status;
}
static int nfs4_xdr_dec_release_lockowner(struct rpc_rqst *rqstp, __be32 *p, void *dummy)
{
struct xdr_stream xdr;
struct compound_hdr hdr;
int status;
xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
status = decode_compound_hdr(&xdr, &hdr);
if (!status)
status = decode_release_lockowner(&xdr);
return status;
}
/*
* Decode READLINK response
*/
@ -5866,6 +5928,7 @@ struct rpc_procinfo nfs4_procedures[] = {
PROC(GETACL, enc_getacl, dec_getacl),
PROC(SETACL, enc_setacl, dec_setacl),
PROC(FS_LOCATIONS, enc_fs_locations, dec_fs_locations),
PROC(RELEASE_LOCKOWNER, enc_release_lockowner, dec_release_lockowner),
#if defined(CONFIG_NFS_V4_1)
PROC(EXCHANGE_ID, enc_exchange_id, dec_exchange_id),
PROC(CREATE_SESSION, enc_create_session, dec_create_session),

8
fs/nfs/pagelist.c
View File

@ -79,6 +79,7 @@ nfs_create_request(struct nfs_open_context *ctx, struct inode *inode,
req->wb_pgbase = offset;
req->wb_bytes = count;
req->wb_context = get_nfs_open_context(ctx);
req->wb_lock_context = nfs_get_lock_context(ctx);
kref_init(&req->wb_kref);
return req;
}
@ -141,11 +142,16 @@ void nfs_clear_request(struct nfs_page *req)
{
struct page *page = req->wb_page;
struct nfs_open_context *ctx = req->wb_context;
struct nfs_lock_context *l_ctx = req->wb_lock_context;
if (page != NULL) {
page_cache_release(page);
req->wb_page = NULL;
}
if (l_ctx != NULL) {
nfs_put_lock_context(l_ctx);
req->wb_lock_context = NULL;
}
if (ctx != NULL) {
put_nfs_open_context(ctx);
req->wb_context = NULL;
@ -235,7 +241,7 @@ static int nfs_can_coalesce_requests(struct nfs_page *prev,
{
if (req->wb_context->cred != prev->wb_context->cred)
return 0;
if (req->wb_context->lockowner != prev->wb_context->lockowner)
if (req->wb_lock_context->lockowner != prev->wb_lock_context->lockowner)
return 0;
if (req->wb_context->state != prev->wb_context->state)
return 0;

3
fs/nfs/read.c
View File

@ -190,6 +190,7 @@ static int nfs_read_rpcsetup(struct nfs_page *req, struct nfs_read_data *data,
data->args.pages = data->pagevec;
data->args.count = count;
data->args.context = get_nfs_open_context(req->wb_context);
data->args.lock_context = req->wb_lock_context;
data->res.fattr = &data->fattr;
data->res.count = count;
@ -410,7 +411,7 @@ void nfs_read_prepare(struct rpc_task *task, void *calldata)
{
struct nfs_read_data *data = calldata;
if (nfs4_setup_sequence(NFS_SERVER(data->inode)->nfs_client,
if (nfs4_setup_sequence(NFS_SERVER(data->inode),
&data->args.seq_args, &data->res.seq_res,
0, task))
return;

4
fs/nfs/super.c
View File

@ -546,6 +546,9 @@ static void nfs_show_mountd_options(struct seq_file *m, struct nfs_server *nfss,
{
struct sockaddr *sap = (struct sockaddr *)&nfss->mountd_address;
if (nfss->flags & NFS_MOUNT_LEGACY_INTERFACE)
return;
switch (sap->sa_family) {
case AF_INET: {
struct sockaddr_in *sin = (struct sockaddr_in *)sap;
@ -1780,6 +1783,7 @@ static int nfs_validate_mount_data(void *options,
* can deal with.
*/
args->flags = data->flags & NFS_MOUNT_FLAGMASK;
args->flags |= NFS_MOUNT_LEGACY_INTERFACE;
args->rsize = data->rsize;
args->wsize = data->wsize;
args->timeo = data->timeo;

2
fs/nfs/unlink.c
View File

@ -110,7 +110,7 @@ void nfs_unlink_prepare(struct rpc_task *task, void *calldata)
struct nfs_unlinkdata *data = calldata;
struct nfs_server *server = NFS_SERVER(data->dir);
if (nfs4_setup_sequence(server->nfs_client, &data->args.seq_args,
if (nfs4_setup_sequence(server, &data->args.seq_args,
&data->res.seq_res, 1, task))
return;
rpc_call_start(task);

9
fs/nfs/write.c
View File

@ -700,7 +700,9 @@ int nfs_flush_incompatible(struct file *file, struct page *page)
req = nfs_page_find_request(page);
if (req == NULL)
return 0;
do_flush = req->wb_page != page || req->wb_context != ctx;
do_flush = req->wb_page != page || req->wb_context != ctx ||
req->wb_lock_context->lockowner != current->files ||
req->wb_lock_context->pid != current->tgid;
nfs_release_request(req);
if (!do_flush)
return 0;
@ -824,6 +826,7 @@ static int nfs_write_rpcsetup(struct nfs_page *req,
data->args.pages = data->pagevec;
data->args.count = count;
data->args.context = get_nfs_open_context(req->wb_context);
data->args.lock_context = req->wb_lock_context;
data->args.stable = NFS_UNSTABLE;
if (how & FLUSH_STABLE) {
data->args.stable = NFS_DATA_SYNC;
@ -1047,9 +1050,9 @@ out:
void nfs_write_prepare(struct rpc_task *task, void *calldata)
{
struct nfs_write_data *data = calldata;
struct nfs_client *clp = (NFS_SERVER(data->inode))->nfs_client;
if (nfs4_setup_sequence(clp, &data->args.seq_args,
if (nfs4_setup_sequence(NFS_SERVER(data->inode),
&data->args.seq_args,
&data->res.seq_res, 1, task))
return;
rpc_call_start(task);

1
include/linux/nfs4.h
View File

@ -523,6 +523,7 @@ enum {
NFSPROC4_CLNT_GETACL,
NFSPROC4_CLNT_SETACL,
NFSPROC4_CLNT_FS_LOCATIONS,
NFSPROC4_CLNT_RELEASE_LOCKOWNER,
/* nfs41 */
NFSPROC4_CLNT_EXCHANGE_ID,

13
include/linux/nfs_fs.h
View File

@ -72,13 +72,20 @@ struct nfs_access_entry {
int mask;
};
struct nfs_lock_context {
atomic_t count;
struct list_head list;
struct nfs_open_context *open_context;
fl_owner_t lockowner;
pid_t pid;
};
struct nfs4_state;
struct nfs_open_context {
atomic_t count;
struct nfs_lock_context lock_context;
struct path path;
struct rpc_cred *cred;
struct nfs4_state *state;
fl_owner_t lockowner;
fmode_t mode;
unsigned long flags;
@ -353,6 +360,8 @@ extern void nfs_setattr_update_inode(struct inode *inode, struct iattr *attr);
extern struct nfs_open_context *get_nfs_open_context(struct nfs_open_context *ctx);
extern void put_nfs_open_context(struct nfs_open_context *ctx);
extern struct nfs_open_context *nfs_find_open_context(struct inode *inode, struct rpc_cred *cred, fmode_t mode);
extern struct nfs_lock_context *nfs_get_lock_context(struct nfs_open_context *ctx);
extern void nfs_put_lock_context(struct nfs_lock_context *l_ctx);
extern u64 nfs_compat_user_ino64(u64 fileid);
extern void nfs_fattr_init(struct nfs_fattr *fattr);

7
include/linux/nfs_fs_sb.h
View File

@ -15,6 +15,7 @@ struct nlm_host;
struct nfs4_sequence_args;
struct nfs4_sequence_res;
struct nfs_server;
struct nfs4_minor_version_ops;
/*
* The nfs_client identifies our client state to the server.
@ -70,11 +71,7 @@ struct nfs_client {
*/
char cl_ipaddr[48];
unsigned char cl_id_uniquifier;
int (* cl_call_sync)(struct nfs_server *server,
struct rpc_message *msg,
struct nfs4_sequence_args *args,
struct nfs4_sequence_res *res,
int cache_reply);
const struct nfs4_minor_version_ops *cl_mvops;
#endif /* CONFIG_NFS_V4 */
#ifdef CONFIG_NFS_V4_1

1
include/linux/nfs_mount.h
View File

@ -69,5 +69,6 @@ struct nfs_mount_data {
#define NFS_MOUNT_LOOKUP_CACHE_NONEG 0x10000
#define NFS_MOUNT_LOOKUP_CACHE_NONE 0x20000
#define NFS_MOUNT_NORESVPORT 0x40000
#define NFS_MOUNT_LEGACY_INTERFACE 0x80000
#endif

1
include/linux/nfs_page.h
View File

@ -39,6 +39,7 @@ struct nfs_page {
struct list_head wb_list; /* Defines state of page: */
struct page *wb_page; /* page to read in/write out */
struct nfs_open_context *wb_context; /* File state context info */
struct nfs_lock_context *wb_lock_context; /* lock context info */
atomic_t wb_complete; /* i/os we're waiting for */
pgoff_t wb_index; /* Offset >> PAGE_CACHE_SHIFT */
unsigned int wb_offset, /* Offset & ~PAGE_CACHE_MASK */

12
include/linux/nfs_xdr.h
View File

@ -196,8 +196,10 @@ struct nfs_openargs {
__u64 clientid;
__u64 id;
union {
struct iattr * attrs; /* UNCHECKED, GUARDED */
nfs4_verifier verifier; /* EXCLUSIVE */
struct {
struct iattr * attrs; /* UNCHECKED, GUARDED */
nfs4_verifier verifier; /* EXCLUSIVE */
};
nfs4_stateid delegation; /* CLAIM_DELEGATE_CUR */
fmode_t delegation_type; /* CLAIM_PREVIOUS */
} u;
@ -313,6 +315,10 @@ struct nfs_lockt_res {
struct nfs4_sequence_res seq_res;
};
struct nfs_release_lockowner_args {
struct nfs_lowner lock_owner;
};
struct nfs4_delegreturnargs {
const struct nfs_fh *fhandle;
const nfs4_stateid *stateid;
@ -332,6 +338,7 @@ struct nfs4_delegreturnres {
struct nfs_readargs {
struct nfs_fh * fh;
struct nfs_open_context *context;
struct nfs_lock_context *lock_context;
__u64 offset;
__u32 count;
unsigned int pgbase;
@ -352,6 +359,7 @@ struct nfs_readres {
struct nfs_writeargs {
struct nfs_fh * fh;
struct nfs_open_context *context;
struct nfs_lock_context *lock_context;
__u64 offset;
__u32 count;
enum nfs3_stable_how stable;

21
include/linux/sunrpc/auth.h
View File

@ -61,13 +61,7 @@ struct rpc_cred {
/*
* Client authentication handle
*/
#define RPC_CREDCACHE_HASHBITS 4
#define RPC_CREDCACHE_NR (1 << RPC_CREDCACHE_HASHBITS)
struct rpc_cred_cache {
struct hlist_head hashtable[RPC_CREDCACHE_NR];
spinlock_t lock;
};
struct rpc_cred_cache;
struct rpc_authops;
struct rpc_auth {
unsigned int au_cslack; /* call cred size estimate */
@ -112,7 +106,7 @@ struct rpc_credops {
void (*crdestroy)(struct rpc_cred *);
int (*crmatch)(struct auth_cred *, struct rpc_cred *, int);
void (*crbind)(struct rpc_task *, struct rpc_cred *, int);
struct rpc_cred * (*crbind)(struct rpc_task *, struct rpc_cred *, int);
__be32 * (*crmarshal)(struct rpc_task *, __be32 *);
int (*crrefresh)(struct rpc_task *);
__be32 * (*crvalidate)(struct rpc_task *, __be32 *);
@ -125,11 +119,12 @@ struct rpc_credops {
extern const struct rpc_authops authunix_ops;
extern const struct rpc_authops authnull_ops;
void __init rpc_init_authunix(void);
void __init rpc_init_generic_auth(void);
void __init rpcauth_init_module(void);
int __init rpc_init_authunix(void);
int __init rpc_init_generic_auth(void);
int __init rpcauth_init_module(void);
void __exit rpcauth_remove_module(void);
void __exit rpc_destroy_generic_auth(void);
void rpc_destroy_authunix(void);
struct rpc_cred * rpc_lookup_cred(void);
struct rpc_cred * rpc_lookup_machine_cred(void);
@ -140,10 +135,8 @@ void rpcauth_release(struct rpc_auth *);
struct rpc_cred * rpcauth_lookup_credcache(struct rpc_auth *, struct auth_cred *, int);
void rpcauth_init_cred(struct rpc_cred *, const struct auth_cred *, struct rpc_auth *, const struct rpc_credops *);
struct rpc_cred * rpcauth_lookupcred(struct rpc_auth *, int);
void rpcauth_bindcred(struct rpc_task *, struct rpc_cred *, int);
void rpcauth_generic_bind_cred(struct rpc_task *, struct rpc_cred *, int);
struct rpc_cred * rpcauth_generic_bind_cred(struct rpc_task *, struct rpc_cred *, int);
void put_rpccred(struct rpc_cred *);
void rpcauth_unbindcred(struct rpc_task *);
__be32 * rpcauth_marshcred(struct rpc_task *, __be32 *);
__be32 * rpcauth_checkverf(struct rpc_task *, __be32 *);
int rpcauth_wrap_req(struct rpc_task *task, kxdrproc_t encode, void *rqstp, __be32 *data, void *obj);

5
include/linux/sunrpc/clnt.h
View File

@ -131,6 +131,7 @@ struct rpc_clnt *rpc_bind_new_program(struct rpc_clnt *,
struct rpc_clnt *rpc_clone_client(struct rpc_clnt *);
void rpc_shutdown_client(struct rpc_clnt *);
void rpc_release_client(struct rpc_clnt *);
void rpc_task_release_client(struct rpc_task *);
int rpcb_register(u32, u32, int, unsigned short);
int rpcb_v4_register(const u32 program, const u32 version,
@ -148,8 +149,8 @@ int rpc_call_sync(struct rpc_clnt *clnt,
const struct rpc_message *msg, int flags);
struct rpc_task *rpc_call_null(struct rpc_clnt *clnt, struct rpc_cred *cred,
int flags);
void rpc_restart_call_prepare(struct rpc_task *);
void rpc_restart_call(struct rpc_task *);
int rpc_restart_call_prepare(struct rpc_task *);
int rpc_restart_call(struct rpc_task *);
void rpc_setbufsize(struct rpc_clnt *, unsigned int, unsigned int);
size_t rpc_max_payload(struct rpc_clnt *);
void rpc_force_rebind(struct rpc_clnt *);

7
include/linux/sunrpc/sched.h
View File

@ -213,6 +213,7 @@ struct rpc_task *rpc_run_bc_task(struct rpc_rqst *req,
const struct rpc_call_ops *ops);
void rpc_put_task(struct rpc_task *);
void rpc_exit_task(struct rpc_task *);
void rpc_exit(struct rpc_task *, int);
void rpc_release_calldata(const struct rpc_call_ops *, void *);
void rpc_killall_tasks(struct rpc_clnt *);
void rpc_execute(struct rpc_task *);
@ -241,12 +242,6 @@ void rpc_destroy_mempool(void);
extern struct workqueue_struct *rpciod_workqueue;
void rpc_prepare_task(struct rpc_task *task);
static inline void rpc_exit(struct rpc_task *task, int status)
{
task->tk_status = status;
task->tk_action = rpc_exit_task;
}
static inline int rpc_wait_for_completion_task(struct rpc_task *task)
{
return __rpc_wait_for_completion_task(task, NULL);

1
include/linux/sunrpc/xprt.h
View File

@ -64,6 +64,7 @@ struct rpc_rqst {
* This is the private part
*/
struct rpc_task * rq_task; /* RPC task data */
struct rpc_cred * rq_cred; /* Bound cred */
__be32 rq_xid; /* request XID */
int rq_cong; /* has incremented xprt->cong */
u32 rq_seqno; /* gss seq no. used on req. */

157
net/sunrpc/auth.c
View File

@ -19,6 +19,15 @@
# define RPCDBG_FACILITY RPCDBG_AUTH
#endif
#define RPC_CREDCACHE_DEFAULT_HASHBITS (4)
struct rpc_cred_cache {
struct hlist_head *hashtable;
unsigned int hashbits;
spinlock_t lock;
};
static unsigned int auth_hashbits = RPC_CREDCACHE_DEFAULT_HASHBITS;
static DEFINE_SPINLOCK(rpc_authflavor_lock);
static const struct rpc_authops *auth_flavors[RPC_AUTH_MAXFLAVOR] = {
&authnull_ops, /* AUTH_NULL */
@ -29,6 +38,42 @@ static const struct rpc_authops *auth_flavors[RPC_AUTH_MAXFLAVOR] = {
static LIST_HEAD(cred_unused);
static unsigned long number_cred_unused;
#define MAX_HASHTABLE_BITS (10)
static int param_set_hashtbl_sz(const char *val, struct kernel_param *kp)
{
unsigned long num;
unsigned int nbits;
int ret;
if (!val)
goto out_inval;
ret = strict_strtoul(val, 0, &num);
if (ret == -EINVAL)
goto out_inval;
nbits = fls(num);
if (num > (1U << nbits))
nbits++;
if (nbits > MAX_HASHTABLE_BITS || nbits < 2)
goto out_inval;
*(unsigned int *)kp->arg = nbits;
return 0;
out_inval:
return -EINVAL;
}
static int param_get_hashtbl_sz(char *buffer, struct kernel_param *kp)
{
unsigned int nbits;
nbits = *(unsigned int *)kp->arg;
return sprintf(buffer, "%u", 1U << nbits);
}
#define param_check_hashtbl_sz(name, p) __param_check(name, p, unsigned int);
module_param_named(auth_hashtable_size, auth_hashbits, hashtbl_sz, 0644);
MODULE_PARM_DESC(auth_hashtable_size, "RPC credential cache hashtable size");
static u32
pseudoflavor_to_flavor(u32 flavor) {
if (flavor >= RPC_AUTH_MAXFLAVOR)
@ -145,16 +190,23 @@ int
rpcauth_init_credcache(struct rpc_auth *auth)
{
struct rpc_cred_cache *new;
int i;
unsigned int hashsize;
new = kmalloc(sizeof(*new), GFP_KERNEL);
if (!new)
return -ENOMEM;
for (i = 0; i < RPC_CREDCACHE_NR; i++)
INIT_HLIST_HEAD(&new->hashtable[i]);
goto out_nocache;
new->hashbits = auth_hashbits;
hashsize = 1U << new->hashbits;
new->hashtable = kcalloc(hashsize, sizeof(new->hashtable[0]), GFP_KERNEL);
if (!new->hashtable)
goto out_nohashtbl;
spin_lock_init(&new->lock);
auth->au_credcache = new;
return 0;
out_nohashtbl:
kfree(new);
out_nocache:
return -ENOMEM;
}
EXPORT_SYMBOL_GPL(rpcauth_init_credcache);
@ -183,11 +235,12 @@ rpcauth_clear_credcache(struct rpc_cred_cache *cache)
LIST_HEAD(free);
struct hlist_head *head;
struct rpc_cred *cred;
unsigned int hashsize = 1U << cache->hashbits;
int i;
spin_lock(&rpc_credcache_lock);
spin_lock(&cache->lock);
for (i = 0; i < RPC_CREDCACHE_NR; i++) {
for (i = 0; i < hashsize; i++) {
head = &cache->hashtable[i];
while (!hlist_empty(head)) {
cred = hlist_entry(head->first, struct rpc_cred, cr_hash);
@ -216,6 +269,7 @@ rpcauth_destroy_credcache(struct rpc_auth *auth)
if (cache) {
auth->au_credcache = NULL;
rpcauth_clear_credcache(cache);
kfree(cache->hashtable);
kfree(cache);
}
}
@ -297,7 +351,7 @@ rpcauth_lookup_credcache(struct rpc_auth *auth, struct auth_cred * acred,
*entry, *new;
unsigned int nr;
nr = hash_long(acred->uid, RPC_CREDCACHE_HASHBITS);
nr = hash_long(acred->uid, cache->hashbits);
rcu_read_lock();
hlist_for_each_entry_rcu(entry, pos, &cache->hashtable[nr], cr_hash) {
@ -390,16 +444,16 @@ rpcauth_init_cred(struct rpc_cred *cred, const struct auth_cred *acred,
}
EXPORT_SYMBOL_GPL(rpcauth_init_cred);
void
struct rpc_cred *
rpcauth_generic_bind_cred(struct rpc_task *task, struct rpc_cred *cred, int lookupflags)
{
task->tk_msg.rpc_cred = get_rpccred(cred);
dprintk("RPC: %5u holding %s cred %p\n", task->tk_pid,
cred->cr_auth->au_ops->au_name, cred);
return get_rpccred(cred);
}
EXPORT_SYMBOL_GPL(rpcauth_generic_bind_cred);
static void
static struct rpc_cred *
rpcauth_bind_root_cred(struct rpc_task *task, int lookupflags)
{
struct rpc_auth *auth = task->tk_client->cl_auth;
@ -407,45 +461,43 @@ rpcauth_bind_root_cred(struct rpc_task *task, int lookupflags)
.uid = 0,
.gid = 0,
};
struct rpc_cred *ret;
dprintk("RPC: %5u looking up %s cred\n",
task->tk_pid, task->tk_client->cl_auth->au_ops->au_name);
ret = auth->au_ops->lookup_cred(auth, &acred, lookupflags);
if (!IS_ERR(ret))
task->tk_msg.rpc_cred = ret;
else
task->tk_status = PTR_ERR(ret);
return auth->au_ops->lookup_cred(auth, &acred, lookupflags);
}
static void
static struct rpc_cred *
rpcauth_bind_new_cred(struct rpc_task *task, int lookupflags)
{
struct rpc_auth *auth = task->tk_client->cl_auth;
struct rpc_cred *ret;
dprintk("RPC: %5u looking up %s cred\n",
task->tk_pid, auth->au_ops->au_name);
ret = rpcauth_lookupcred(auth, lookupflags);
if (!IS_ERR(ret))
task->tk_msg.rpc_cred = ret;
else
task->tk_status = PTR_ERR(ret);
return rpcauth_lookupcred(auth, lookupflags);
}
void
static int
rpcauth_bindcred(struct rpc_task *task, struct rpc_cred *cred, int flags)
{
struct rpc_rqst *req = task->tk_rqstp;
struct rpc_cred *new;
int lookupflags = 0;
if (flags & RPC_TASK_ASYNC)
lookupflags |= RPCAUTH_LOOKUP_NEW;
if (cred != NULL)
cred->cr_ops->crbind(task, cred, lookupflags);
new = cred->cr_ops->crbind(task, cred, lookupflags);
else if (flags & RPC_TASK_ROOTCREDS)
rpcauth_bind_root_cred(task, lookupflags);
new = rpcauth_bind_root_cred(task, lookupflags);
else
rpcauth_bind_new_cred(task, lookupflags);
new = rpcauth_bind_new_cred(task, lookupflags);
if (IS_ERR(new))
return PTR_ERR(new);
if (req->rq_cred != NULL)
put_rpccred(req->rq_cred);
req->rq_cred = new;
return 0;
}
void
@ -484,22 +536,10 @@ out_nodestroy:
}
EXPORT_SYMBOL_GPL(put_rpccred);
void
rpcauth_unbindcred(struct rpc_task *task)
{
struct rpc_cred *cred = task->tk_msg.rpc_cred;
dprintk("RPC: %5u releasing %s cred %p\n",
task->tk_pid, cred->cr_auth->au_ops->au_name, cred);
put_rpccred(cred);
task->tk_msg.rpc_cred = NULL;
}
__be32 *
rpcauth_marshcred(struct rpc_task *task, __be32 *p)
{
struct rpc_cred *cred = task->tk_msg.rpc_cred;
struct rpc_cred *cred = task->tk_rqstp->rq_cred;
dprintk("RPC: %5u marshaling %s cred %p\n",
task->tk_pid, cred->cr_auth->au_ops->au_name, cred);
@ -510,7 +550,7 @@ rpcauth_marshcred(struct rpc_task *task, __be32 *p)
__be32 *
rpcauth_checkverf(struct rpc_task *task, __be32 *p)
{
struct rpc_cred *cred = task->tk_msg.rpc_cred;
struct rpc_cred *cred = task->tk_rqstp->rq_cred;
dprintk("RPC: %5u validating %s cred %p\n",
task->tk_pid, cred->cr_auth->au_ops->au_name, cred);
@ -522,7 +562,7 @@ int
rpcauth_wrap_req(struct rpc_task *task, kxdrproc_t encode, void *rqstp,
__be32 *data, void *obj)
{
struct rpc_cred *cred = task->tk_msg.rpc_cred;
struct rpc_cred *cred = task->tk_rqstp->rq_cred;
dprintk("RPC: %5u using %s cred %p to wrap rpc data\n",
task->tk_pid, cred->cr_ops->cr_name, cred);
@ -536,7 +576,7 @@ int
rpcauth_unwrap_resp(struct rpc_task *task, kxdrproc_t decode, void *rqstp,
__be32 *data, void *obj)
{
struct rpc_cred *cred = task->tk_msg.rpc_cred;
struct rpc_cred *cred = task->tk_rqstp->rq_cred;
dprintk("RPC: %5u using %s cred %p to unwrap rpc data\n",
task->tk_pid, cred->cr_ops->cr_name, cred);
@ -550,13 +590,21 @@ rpcauth_unwrap_resp(struct rpc_task *task, kxdrproc_t decode, void *rqstp,
int
rpcauth_refreshcred(struct rpc_task *task)
{
struct rpc_cred *cred = task->tk_msg.rpc_cred;
struct rpc_cred *cred = task->tk_rqstp->rq_cred;
int err;
cred = task->tk_rqstp->rq_cred;
if (cred == NULL) {
err = rpcauth_bindcred(task, task->tk_msg.rpc_cred, task->tk_flags);
if (err < 0)
goto out;
cred = task->tk_rqstp->rq_cred;
};
dprintk("RPC: %5u refreshing %s cred %p\n",
task->tk_pid, cred->cr_auth->au_ops->au_name, cred);
err = cred->cr_ops->crrefresh(task);
out:
if (err < 0)
task->tk_status = err;
return err;
@ -565,7 +613,7 @@ rpcauth_refreshcred(struct rpc_task *task)
void
rpcauth_invalcred(struct rpc_task *task)
{
struct rpc_cred *cred = task->tk_msg.rpc_cred;
struct rpc_cred *cred = task->tk_rqstp->rq_cred;
dprintk("RPC: %5u invalidating %s cred %p\n",
task->tk_pid, cred->cr_auth->au_ops->au_name, cred);
@ -576,7 +624,7 @@ rpcauth_invalcred(struct rpc_task *task)
int
rpcauth_uptodatecred(struct rpc_task *task)
{
struct rpc_cred *cred = task->tk_msg.rpc_cred;
struct rpc_cred *cred = task->tk_rqstp->rq_cred;
return cred == NULL ||
test_bit(RPCAUTH_CRED_UPTODATE, &cred->cr_flags) != 0;
@ -587,14 +635,27 @@ static struct shrinker rpc_cred_shrinker = {
.seeks = DEFAULT_SEEKS,
};
void __init rpcauth_init_module(void)
int __init rpcauth_init_module(void)
{
rpc_init_authunix();
rpc_init_generic_auth();
int err;
err = rpc_init_authunix();
if (err < 0)
goto out1;
err = rpc_init_generic_auth();
if (err < 0)
goto out2;
register_shrinker(&rpc_cred_shrinker);
return 0;
out2:
rpc_destroy_authunix();
out1:
return err;
}
void __exit rpcauth_remove_module(void)
{
rpc_destroy_authunix();
rpc_destroy_generic_auth();
unregister_shrinker(&rpc_cred_shrinker);
}

23
net/sunrpc/auth_generic.c
View File

@ -27,7 +27,6 @@ struct generic_cred {
};
static struct rpc_auth generic_auth;
static struct rpc_cred_cache generic_cred_cache;
static const struct rpc_credops generic_credops;
/*
@ -55,18 +54,13 @@ struct rpc_cred *rpc_lookup_machine_cred(void)
}
EXPORT_SYMBOL_GPL(rpc_lookup_machine_cred);
static void
generic_bind_cred(struct rpc_task *task, struct rpc_cred *cred, int lookupflags)
static struct rpc_cred *generic_bind_cred(struct rpc_task *task,
struct rpc_cred *cred, int lookupflags)
{
struct rpc_auth *auth = task->tk_client->cl_auth;
struct auth_cred *acred = &container_of(cred, struct generic_cred, gc_base)->acred;
struct rpc_cred *ret;
ret = auth->au_ops->lookup_cred(auth, acred, lookupflags);
if (!IS_ERR(ret))
task->tk_msg.rpc_cred = ret;
else
task->tk_status = PTR_ERR(ret);
return auth->au_ops->lookup_cred(auth, acred, lookupflags);
}
/*
@ -159,20 +153,16 @@ out_nomatch:
return 0;
}
void __init rpc_init_generic_auth(void)
int __init rpc_init_generic_auth(void)
{
spin_lock_init(&generic_cred_cache.lock);
return rpcauth_init_credcache(&generic_auth);
}
void __exit rpc_destroy_generic_auth(void)
{
rpcauth_clear_credcache(&generic_cred_cache);
rpcauth_destroy_credcache(&generic_auth);
}
static struct rpc_cred_cache generic_cred_cache = {
{{ NULL, },},
};
static const struct rpc_authops generic_auth_ops = {
.owner = THIS_MODULE,
.au_name = "Generic",
@ -183,7 +173,6 @@ static const struct rpc_authops generic_auth_ops = {
static struct rpc_auth generic_auth = {
.au_ops = &generic_auth_ops,
.au_count = ATOMIC_INIT(0),
.au_credcache = &generic_cred_cache,
};
static const struct rpc_credops generic_credops = {

29
net/sunrpc/auth_gss/auth_gss.c
View File

@ -373,7 +373,7 @@ gss_handle_downcall_result(struct gss_cred *gss_cred, struct gss_upcall_msg *gss
static void
gss_upcall_callback(struct rpc_task *task)
{
struct gss_cred *gss_cred = container_of(task->tk_msg.rpc_cred,
struct gss_cred *gss_cred = container_of(task->tk_rqstp->rq_cred,
struct gss_cred, gc_base);
struct gss_upcall_msg *gss_msg = gss_cred->gc_upcall;
struct inode *inode = &gss_msg->inode->vfs_inode;
@ -502,7 +502,7 @@ static void warn_gssd(void)
static inline int
gss_refresh_upcall(struct rpc_task *task)
{
struct rpc_cred *cred = task->tk_msg.rpc_cred;
struct rpc_cred *cred = task->tk_rqstp->rq_cred;
struct gss_auth *gss_auth = container_of(cred->cr_auth,
struct gss_auth, rpc_auth);
struct gss_cred *gss_cred = container_of(cred,
@ -928,6 +928,7 @@ gss_do_free_ctx(struct gss_cl_ctx *ctx)
{
dprintk("RPC: gss_free_ctx\n");
gss_delete_sec_context(&ctx->gc_gss_ctx);
kfree(ctx->gc_wire_ctx.data);
kfree(ctx);
}
@ -942,13 +943,7 @@ gss_free_ctx_callback(struct rcu_head *head)
static void
gss_free_ctx(struct gss_cl_ctx *ctx)
{
struct gss_ctx *gc_gss_ctx;
gc_gss_ctx = rcu_dereference(ctx->gc_gss_ctx);
rcu_assign_pointer(ctx->gc_gss_ctx, NULL);
call_rcu(&ctx->gc_rcu, gss_free_ctx_callback);
if (gc_gss_ctx)
gss_delete_sec_context(&gc_gss_ctx);
}
static void
@ -1064,12 +1059,12 @@ out:
static __be32 *
gss_marshal(struct rpc_task *task, __be32 *p)
{
struct rpc_cred *cred = task->tk_msg.rpc_cred;
struct rpc_rqst *req = task->tk_rqstp;
struct rpc_cred *cred = req->rq_cred;
struct gss_cred *gss_cred = container_of(cred, struct gss_cred,
gc_base);
struct gss_cl_ctx *ctx = gss_cred_get_ctx(cred);
__be32 *cred_len;
struct rpc_rqst *req = task->tk_rqstp;
u32 maj_stat = 0;
struct xdr_netobj mic;
struct kvec iov;
@ -1119,7 +1114,7 @@ out_put_ctx:
static int gss_renew_cred(struct rpc_task *task)
{
struct rpc_cred *oldcred = task->tk_msg.rpc_cred;
struct rpc_cred *oldcred = task->tk_rqstp->rq_cred;
struct gss_cred *gss_cred = container_of(oldcred,
struct gss_cred,
gc_base);
@ -1133,7 +1128,7 @@ static int gss_renew_cred(struct rpc_task *task)
new = gss_lookup_cred(auth, &acred, RPCAUTH_LOOKUP_NEW);
if (IS_ERR(new))
return PTR_ERR(new);
task->tk_msg.rpc_cred = new;
task->tk_rqstp->rq_cred = new;
put_rpccred(oldcred);
return 0;
}
@ -1161,7 +1156,7 @@ static int gss_cred_is_negative_entry(struct rpc_cred *cred)
static int
gss_refresh(struct rpc_task *task)
{
struct rpc_cred *cred = task->tk_msg.rpc_cred;
struct rpc_cred *cred = task->tk_rqstp->rq_cred;
int ret = 0;
if (gss_cred_is_negative_entry(cred))
@ -1172,7 +1167,7 @@ gss_refresh(struct rpc_task *task)
ret = gss_renew_cred(task);
if (ret < 0)
goto out;
cred = task->tk_msg.rpc_cred;
cred = task->tk_rqstp->rq_cred;
}
if (test_bit(RPCAUTH_CRED_NEW, &cred->cr_flags))
@ -1191,7 +1186,7 @@ gss_refresh_null(struct rpc_task *task)
static __be32 *
gss_validate(struct rpc_task *task, __be32 *p)
{
struct rpc_cred *cred = task->tk_msg.rpc_cred;
struct rpc_cred *cred = task->tk_rqstp->rq_cred;
struct gss_cl_ctx *ctx = gss_cred_get_ctx(cred);
__be32 seq;
struct kvec iov;
@ -1400,7 +1395,7 @@ static int
gss_wrap_req(struct rpc_task *task,
kxdrproc_t encode, void *rqstp, __be32 *p, void *obj)
{
struct rpc_cred *cred = task->tk_msg.rpc_cred;
struct rpc_cred *cred = task->tk_rqstp->rq_cred;
struct gss_cred *gss_cred = container_of(cred, struct gss_cred,
gc_base);
struct gss_cl_ctx *ctx = gss_cred_get_ctx(cred);
@ -1503,7 +1498,7 @@ static int
gss_unwrap_resp(struct rpc_task *task,
kxdrproc_t decode, void *rqstp, __be32 *p, void *obj)
{
struct rpc_cred *cred = task->tk_msg.rpc_cred;
struct rpc_cred *cred = task->tk_rqstp->rq_cred;
struct gss_cred *gss_cred = container_of(cred, struct gss_cred,
gc_base);
struct gss_cl_ctx *ctx = gss_cred_get_ctx(cred);

2
net/sunrpc/auth_null.c
View File

@ -75,7 +75,7 @@ nul_marshal(struct rpc_task *task, __be32 *p)
static int
nul_refresh(struct rpc_task *task)
{
set_bit(RPCAUTH_CRED_UPTODATE, &task->tk_msg.rpc_cred->cr_flags);
set_bit(RPCAUTH_CRED_UPTODATE, &task->tk_rqstp->rq_cred->cr_flags);
return 0;
}

21
net/sunrpc/auth_unix.c
View File

@ -29,7 +29,6 @@ struct unx_cred {
#endif
static struct rpc_auth unix_auth;
static struct rpc_cred_cache unix_cred_cache;
static const struct rpc_credops unix_credops;
static struct rpc_auth *
@ -141,7 +140,7 @@ static __be32 *
unx_marshal(struct rpc_task *task, __be32 *p)
{
struct rpc_clnt *clnt = task->tk_client;
struct unx_cred *cred = container_of(task->tk_msg.rpc_cred, struct unx_cred, uc_base);
struct unx_cred *cred = container_of(task->tk_rqstp->rq_cred, struct unx_cred, uc_base);
__be32 *base, *hold;
int i;
@ -174,7 +173,7 @@ unx_marshal(struct rpc_task *task, __be32 *p)
static int
unx_refresh(struct rpc_task *task)
{
set_bit(RPCAUTH_CRED_UPTODATE, &task->tk_msg.rpc_cred->cr_flags);
set_bit(RPCAUTH_CRED_UPTODATE, &task->tk_rqstp->rq_cred->cr_flags);
return 0;
}
@ -197,15 +196,20 @@ unx_validate(struct rpc_task *task, __be32 *p)
printk("RPC: giant verf size: %u\n", size);
return NULL;
}
task->tk_msg.rpc_cred->cr_auth->au_rslack = (size >> 2) + 2;
task->tk_rqstp->rq_cred->cr_auth->au_rslack = (size >> 2) + 2;
p += (size >> 2);
return p;
}
void __init rpc_init_authunix(void)
int __init rpc_init_authunix(void)
{
spin_lock_init(&unix_cred_cache.lock);
return rpcauth_init_credcache(&unix_auth);
}
void rpc_destroy_authunix(void)
{
rpcauth_destroy_credcache(&unix_auth);
}
const struct rpc_authops authunix_ops = {
@ -218,10 +222,6 @@ const struct rpc_authops authunix_ops = {
.crcreate = unx_create_cred,
};
static
struct rpc_cred_cache unix_cred_cache = {
};
static
struct rpc_auth unix_auth = {
.au_cslack = UNX_WRITESLACK,
@ -229,7 +229,6 @@ struct rpc_auth unix_auth = {
.au_ops = &authunix_ops,
.au_flavor = RPC_AUTH_UNIX,
.au_count = ATOMIC_INIT(0),
.au_credcache = &unix_cred_cache,
};
static

182
net/sunrpc/clnt.c
View File

@ -413,6 +413,35 @@ out_no_clnt:
}
EXPORT_SYMBOL_GPL(rpc_clone_client);
/*
* Kill all tasks for the given client.
* XXX: kill their descendants as well?
*/
void rpc_killall_tasks(struct rpc_clnt *clnt)
{
struct rpc_task *rovr;
if (list_empty(&clnt->cl_tasks))
return;
dprintk("RPC: killing all tasks for client %p\n", clnt);
/*
* Spin lock all_tasks to prevent changes...
*/
spin_lock(&clnt->cl_lock);
list_for_each_entry(rovr, &clnt->cl_tasks, tk_task) {
if (!RPC_IS_ACTIVATED(rovr))
continue;
if (!(rovr->tk_flags & RPC_TASK_KILLED)) {
rovr->tk_flags |= RPC_TASK_KILLED;
rpc_exit(rovr, -EIO);
rpc_wake_up_queued_task(rovr->tk_waitqueue, rovr);
}
}
spin_unlock(&clnt->cl_lock);
}
EXPORT_SYMBOL_GPL(rpc_killall_tasks);
/*
* Properly shut down an RPC client, terminating all outstanding
* requests.
@ -538,6 +567,49 @@ out:
}
EXPORT_SYMBOL_GPL(rpc_bind_new_program);
void rpc_task_release_client(struct rpc_task *task)
{
struct rpc_clnt *clnt = task->tk_client;
if (clnt != NULL) {
/* Remove from client task list */
spin_lock(&clnt->cl_lock);
list_del(&task->tk_task);
spin_unlock(&clnt->cl_lock);
task->tk_client = NULL;
rpc_release_client(clnt);
}
}
static
void rpc_task_set_client(struct rpc_task *task, struct rpc_clnt *clnt)
{
if (clnt != NULL) {
rpc_task_release_client(task);
task->tk_client = clnt;
kref_get(&clnt->cl_kref);
if (clnt->cl_softrtry)
task->tk_flags |= RPC_TASK_SOFT;
/* Add to the client's list of all tasks */
spin_lock(&clnt->cl_lock);
list_add_tail(&task->tk_task, &clnt->cl_tasks);
spin_unlock(&clnt->cl_lock);
}
}
static void
rpc_task_set_rpc_message(struct rpc_task *task, const struct rpc_message *msg)
{
if (msg != NULL) {
task->tk_msg.rpc_proc = msg->rpc_proc;
task->tk_msg.rpc_argp = msg->rpc_argp;
task->tk_msg.rpc_resp = msg->rpc_resp;
if (msg->rpc_cred != NULL)
task->tk_msg.rpc_cred = get_rpccred(msg->rpc_cred);
}
}
/*
* Default callback for async RPC calls
*/
@ -562,6 +634,18 @@ struct rpc_task *rpc_run_task(const struct rpc_task_setup *task_setup_data)
if (IS_ERR(task))
goto out;
rpc_task_set_client(task, task_setup_data->rpc_client);
rpc_task_set_rpc_message(task, task_setup_data->rpc_message);
if (task->tk_status != 0) {
int ret = task->tk_status;
rpc_put_task(task);
return ERR_PTR(ret);
}
if (task->tk_action == NULL)
rpc_call_start(task);
atomic_inc(&task->tk_count);
rpc_execute(task);
out:
@ -756,12 +840,13 @@ EXPORT_SYMBOL_GPL(rpc_force_rebind);
* Restart an (async) RPC call from the call_prepare state.
* Usually called from within the exit handler.
*/
void
int
rpc_restart_call_prepare(struct rpc_task *task)
{
if (RPC_ASSASSINATED(task))
return;
return 0;
task->tk_action = rpc_prepare_task;
return 1;
}
EXPORT_SYMBOL_GPL(rpc_restart_call_prepare);
@ -769,13 +854,13 @@ EXPORT_SYMBOL_GPL(rpc_restart_call_prepare);
* Restart an (async) RPC call. Usually called from within the
* exit handler.
*/
void
int
rpc_restart_call(struct rpc_task *task)
{
if (RPC_ASSASSINATED(task))
return;
return 0;
task->tk_action = call_start;
return 1;
}
EXPORT_SYMBOL_GPL(rpc_restart_call);
@ -824,11 +909,6 @@ call_reserve(struct rpc_task *task)
{
dprint_status(task);
if (!rpcauth_uptodatecred(task)) {
task->tk_action = call_refresh;
return;
}
task->tk_status = 0;
task->tk_action = call_reserveresult;
xprt_reserve(task);
@ -892,7 +972,7 @@ call_reserveresult(struct rpc_task *task)
static void
call_allocate(struct rpc_task *task)
{
unsigned int slack = task->tk_msg.rpc_cred->cr_auth->au_cslack;
unsigned int slack = task->tk_client->cl_auth->au_cslack;
struct rpc_rqst *req = task->tk_rqstp;
struct rpc_xprt *xprt = task->tk_xprt;
struct rpc_procinfo *proc = task->tk_msg.rpc_proc;
@ -900,7 +980,7 @@ call_allocate(struct rpc_task *task)
dprint_status(task);
task->tk_status = 0;
task->tk_action = call_bind;
task->tk_action = call_refresh;
if (req->rq_buffer)
return;
@ -937,6 +1017,47 @@ call_allocate(struct rpc_task *task)
rpc_exit(task, -ERESTARTSYS);
}
/*
* 2a. Bind and/or refresh the credentials
*/
static void
call_refresh(struct rpc_task *task)
{
dprint_status(task);
task->tk_action = call_refreshresult;
task->tk_status = 0;
task->tk_client->cl_stats->rpcauthrefresh++;
rpcauth_refreshcred(task);
}
/*
* 2b. Process the results of a credential refresh
*/
static void
call_refreshresult(struct rpc_task *task)
{
int status = task->tk_status;
dprint_status(task);
task->tk_status = 0;
task->tk_action = call_bind;
if (status >= 0 && rpcauth_uptodatecred(task))
return;
switch (status) {
case -EACCES:
rpc_exit(task, -EACCES);
return;
case -ENOMEM:
rpc_exit(task, -ENOMEM);
return;
case -ETIMEDOUT:
rpc_delay(task, 3*HZ);
}
task->tk_action = call_refresh;
}
static inline int
rpc_task_need_encode(struct rpc_task *task)
{
@ -1472,43 +1593,6 @@ out_retry:
}
}
/*
* 8. Refresh the credentials if rejected by the server
*/
static void
call_refresh(struct rpc_task *task)
{
dprint_status(task);
task->tk_action = call_refreshresult;
task->tk_status = 0;
task->tk_client->cl_stats->rpcauthrefresh++;
rpcauth_refreshcred(task);
}
/*
* 8a. Process the results of a credential refresh
*/
static void
call_refreshresult(struct rpc_task *task)
{
int status = task->tk_status;
dprint_status(task);
task->tk_status = 0;
task->tk_action = call_reserve;
if (status >= 0 && rpcauth_uptodatecred(task))
return;
if (status == -EACCES) {
rpc_exit(task, -EACCES);
return;
}
task->tk_action = call_refresh;
if (status != -ETIMEDOUT)
rpc_delay(task, 3*HZ);
}
static __be32 *
rpc_encode_header(struct rpc_task *task)
{

104
net/sunrpc/sched.c
View File

@ -246,17 +246,8 @@ static inline void rpc_task_set_debuginfo(struct rpc_task *task)
static void rpc_set_active(struct rpc_task *task)
{
struct rpc_clnt *clnt;
if (test_and_set_bit(RPC_TASK_ACTIVE, &task->tk_runstate) != 0)
return;
rpc_task_set_debuginfo(task);
/* Add to global list of all tasks */
clnt = task->tk_client;
if (clnt != NULL) {
spin_lock(&clnt->cl_lock);
list_add_tail(&task->tk_task, &clnt->cl_tasks);
spin_unlock(&clnt->cl_lock);
}
set_bit(RPC_TASK_ACTIVE, &task->tk_runstate);
}
/*
@ -319,11 +310,6 @@ static void __rpc_sleep_on(struct rpc_wait_queue *q, struct rpc_task *task,
dprintk("RPC: %5u sleep_on(queue \"%s\" time %lu)\n",
task->tk_pid, rpc_qname(q), jiffies);
if (!RPC_IS_ASYNC(task) && !RPC_IS_ACTIVATED(task)) {
printk(KERN_ERR "RPC: Inactive synchronous task put to sleep!\n");
return;
}
__rpc_add_wait_queue(q, task);
BUG_ON(task->tk_callback != NULL);
@ -334,8 +320,8 @@ static void __rpc_sleep_on(struct rpc_wait_queue *q, struct rpc_task *task,
void rpc_sleep_on(struct rpc_wait_queue *q, struct rpc_task *task,
rpc_action action)
{
/* Mark the task as being activated if so needed */
rpc_set_active(task);
/* We shouldn't ever put an inactive task to sleep */
BUG_ON(!RPC_IS_ACTIVATED(task));
/*
* Protect the queue operations.
@ -405,14 +391,6 @@ void rpc_wake_up_queued_task(struct rpc_wait_queue *queue, struct rpc_task *task
}
EXPORT_SYMBOL_GPL(rpc_wake_up_queued_task);
/*
* Wake up the specified task
*/
static void rpc_wake_up_task(struct rpc_task *task)
{
rpc_wake_up_queued_task(task->tk_waitqueue, task);
}
/*
* Wake up the next task on a priority queue.
*/
@ -600,7 +578,15 @@ void rpc_exit_task(struct rpc_task *task)
}
}
}
EXPORT_SYMBOL_GPL(rpc_exit_task);
void rpc_exit(struct rpc_task *task, int status)
{
task->tk_status = status;
task->tk_action = rpc_exit_task;
if (RPC_IS_QUEUED(task))
rpc_wake_up_queued_task(task->tk_waitqueue, task);
}
EXPORT_SYMBOL_GPL(rpc_exit);
void rpc_release_calldata(const struct rpc_call_ops *ops, void *calldata)
{
@ -690,7 +676,6 @@ static void __rpc_execute(struct rpc_task *task)
dprintk("RPC: %5u got signal\n", task->tk_pid);
task->tk_flags |= RPC_TASK_KILLED;
rpc_exit(task, -ERESTARTSYS);
rpc_wake_up_task(task);
}
rpc_set_running(task);
dprintk("RPC: %5u sync task resuming\n", task->tk_pid);
@ -714,8 +699,9 @@ static void __rpc_execute(struct rpc_task *task)
void rpc_execute(struct rpc_task *task)
{
rpc_set_active(task);
rpc_set_running(task);
__rpc_execute(task);
rpc_make_runnable(task);
if (!RPC_IS_ASYNC(task))
__rpc_execute(task);
}
static void rpc_async_schedule(struct work_struct *work)
@ -808,26 +794,9 @@ static void rpc_init_task(struct rpc_task *task, const struct rpc_task_setup *ta
/* Initialize workqueue for async tasks */
task->tk_workqueue = task_setup_data->workqueue;
task->tk_client = task_setup_data->rpc_client;
if (task->tk_client != NULL) {
kref_get(&task->tk_client->cl_kref);
if (task->tk_client->cl_softrtry)
task->tk_flags |= RPC_TASK_SOFT;
}
if (task->tk_ops->rpc_call_prepare != NULL)
task->tk_action = rpc_prepare_task;
if (task_setup_data->rpc_message != NULL) {
task->tk_msg.rpc_proc = task_setup_data->rpc_message->rpc_proc;
task->tk_msg.rpc_argp = task_setup_data->rpc_message->rpc_argp;
task->tk_msg.rpc_resp = task_setup_data->rpc_message->rpc_resp;
/* Bind the user cred */
rpcauth_bindcred(task, task_setup_data->rpc_message->rpc_cred, task_setup_data->flags);
if (task->tk_action == NULL)
rpc_call_start(task);
}
/* starting timestamp */
task->tk_start = ktime_get();
@ -896,11 +865,8 @@ void rpc_put_task(struct rpc_task *task)
if (task->tk_rqstp)
xprt_release(task);
if (task->tk_msg.rpc_cred)
rpcauth_unbindcred(task);
if (task->tk_client) {
rpc_release_client(task->tk_client);
task->tk_client = NULL;
}
put_rpccred(task->tk_msg.rpc_cred);
rpc_task_release_client(task);
if (task->tk_workqueue != NULL) {
INIT_WORK(&task->u.tk_work, rpc_async_release);
queue_work(task->tk_workqueue, &task->u.tk_work);
@ -913,13 +879,6 @@ static void rpc_release_task(struct rpc_task *task)
{
dprintk("RPC: %5u release task\n", task->tk_pid);
if (!list_empty(&task->tk_task)) {
struct rpc_clnt *clnt = task->tk_client;
/* Remove from client task list */
spin_lock(&clnt->cl_lock);
list_del(&task->tk_task);
spin_unlock(&clnt->cl_lock);
}
BUG_ON (RPC_IS_QUEUED(task));
/* Wake up anyone who is waiting for task completion */
@ -928,35 +887,6 @@ static void rpc_release_task(struct rpc_task *task)
rpc_put_task(task);
}
/*
* Kill all tasks for the given client.
* XXX: kill their descendants as well?
*/
void rpc_killall_tasks(struct rpc_clnt *clnt)
{
struct rpc_task *rovr;
if (list_empty(&clnt->cl_tasks))
return;
dprintk("RPC: killing all tasks for client %p\n", clnt);
/*
* Spin lock all_tasks to prevent changes...
*/
spin_lock(&clnt->cl_lock);
list_for_each_entry(rovr, &clnt->cl_tasks, tk_task) {
if (! RPC_IS_ACTIVATED(rovr))
continue;
if (!(rovr->tk_flags & RPC_TASK_KILLED)) {
rovr->tk_flags |= RPC_TASK_KILLED;
rpc_exit(rovr, -EIO);
rpc_wake_up_task(rovr);
}
}
spin_unlock(&clnt->cl_lock);
}
EXPORT_SYMBOL_GPL(rpc_killall_tasks);
int rpciod_up(void)
{
return try_module_get(THIS_MODULE) ? 0 : -EINVAL;

15
net/sunrpc/sunrpc_syms.c
View File

@ -33,10 +33,11 @@ init_sunrpc(void)
if (err)
goto out;
err = rpc_init_mempool();
if (err) {
unregister_rpc_pipefs();
goto out;
}
if (err)
goto out2;
err = rpcauth_init_module();
if (err)
goto out3;
#ifdef RPC_DEBUG
rpc_register_sysctl();
#endif
@ -47,7 +48,11 @@ init_sunrpc(void)
cache_register(&unix_gid_cache);
svc_init_xprt_sock(); /* svc sock transport */
init_socket_xprt(); /* clnt sock transport */
rpcauth_init_module();
return 0;
out3:
rpc_destroy_mempool();
out2:
unregister_rpc_pipefs();
out:
return err;
}

3
net/sunrpc/xprt.c
View File

@ -1032,6 +1032,8 @@ void xprt_release(struct rpc_task *task)
spin_unlock_bh(&xprt->transport_lock);
if (req->rq_buffer)
xprt->ops->buf_free(req->rq_buffer);
if (req->rq_cred != NULL)
put_rpccred(req->rq_cred);
task->tk_rqstp = NULL;
if (req->rq_release_snd_buf)
req->rq_release_snd_buf(req);
@ -1129,6 +1131,7 @@ static void xprt_destroy(struct kref *kref)
rpc_destroy_wait_queue(&xprt->sending);
rpc_destroy_wait_queue(&xprt->resend);
rpc_destroy_wait_queue(&xprt->backlog);
cancel_work_sync(&xprt->task_cleanup);
/*
* Tear down transport state and free the rpc_xprt
*/