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Merge branch 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/linux-nfs 

* 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
  NFS: Revert pnfs ugliness from the generic NFS read code path
  SUNRPC: destroy freshly allocated transport in case of sockaddr init error
  NFS: Fix a regression in the referral code
  nfs: move nfs_file_operations declaration to bottom of file.c (try #2)
  nfs: when attempting to open a directory, fall back on normal lookup (try #5)
This commit is contained in:
Linus Torvalds 2011-11-22 08:54:15 -08:00
parent af36d15f58 62e4a76987
commit e25ba0ce03
12 changed files with 89 additions and 62 deletions
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2
fs/nfs/dir.c
View File

@ -1468,12 +1468,12 @@ static struct dentry *nfs_atomic_lookup(struct inode *dir, struct dentry *dentry
res = NULL;
goto out;
/* This turned out not to be a regular file */
case -EISDIR:
case -ENOTDIR:
goto no_open;
case -ELOOP:
if (!(nd->intent.open.flags & O_NOFOLLOW))
goto no_open;
/* case -EISDIR: */
/* case -EINVAL: */
default:
res = ERR_CAST(inode);

91
fs/nfs/file.c
View File

@ -40,48 +40,8 @@
#define NFSDBG_FACILITY NFSDBG_FILE
static int nfs_file_open(struct inode *, struct file *);
static int nfs_file_release(struct inode *, struct file *);
static loff_t nfs_file_llseek(struct file *file, loff_t offset, int origin);
static int nfs_file_mmap(struct file *, struct vm_area_struct *);
static ssize_t nfs_file_splice_read(struct file *filp, loff_t *ppos,
struct pipe_inode_info *pipe,
size_t count, unsigned int flags);
static ssize_t nfs_file_read(struct kiocb *, const struct iovec *iov,
unsigned long nr_segs, loff_t pos);
static ssize_t nfs_file_splice_write(struct pipe_inode_info *pipe,
struct file *filp, loff_t *ppos,
size_t count, unsigned int flags);
static ssize_t nfs_file_write(struct kiocb *, const struct iovec *iov,
unsigned long nr_segs, loff_t pos);
static int nfs_file_flush(struct file *, fl_owner_t id);
static int nfs_file_fsync(struct file *, loff_t, loff_t, int datasync);
static int nfs_check_flags(int flags);
static int nfs_lock(struct file *filp, int cmd, struct file_lock *fl);
static int nfs_flock(struct file *filp, int cmd, struct file_lock *fl);
static int nfs_setlease(struct file *file, long arg, struct file_lock **fl);
static const struct vm_operations_struct nfs_file_vm_ops;
const struct file_operations nfs_file_operations = {
.llseek = nfs_file_llseek,
.read = do_sync_read,
.write = do_sync_write,
.aio_read = nfs_file_read,
.aio_write = nfs_file_write,
.mmap = nfs_file_mmap,
.open = nfs_file_open,
.flush = nfs_file_flush,
.release = nfs_file_release,
.fsync = nfs_file_fsync,
.lock = nfs_lock,
.flock = nfs_flock,
.splice_read = nfs_file_splice_read,
.splice_write = nfs_file_splice_write,
.check_flags = nfs_check_flags,
.setlease = nfs_setlease,
};
const struct inode_operations nfs_file_inode_operations = {
.permission = nfs_permission,
.getattr = nfs_getattr,
@ -886,3 +846,54 @@ static int nfs_setlease(struct file *file, long arg, struct file_lock **fl)
file->f_path.dentry->d_name.name, arg);
return -EINVAL;
}
const struct file_operations nfs_file_operations = {
.llseek = nfs_file_llseek,
.read = do_sync_read,
.write = do_sync_write,
.aio_read = nfs_file_read,
.aio_write = nfs_file_write,
.mmap = nfs_file_mmap,
.open = nfs_file_open,
.flush = nfs_file_flush,
.release = nfs_file_release,
.fsync = nfs_file_fsync,
.lock = nfs_lock,
.flock = nfs_flock,
.splice_read = nfs_file_splice_read,
.splice_write = nfs_file_splice_write,
.check_flags = nfs_check_flags,
.setlease = nfs_setlease,
};
#ifdef CONFIG_NFS_V4
static int
nfs4_file_open(struct inode *inode, struct file *filp)
{
/*
* NFSv4 opens are handled in d_lookup and d_revalidate. If we get to
* this point, then something is very wrong
*/
dprintk("NFS: %s called! inode=%p filp=%p\n", __func__, inode, filp);
return -ENOTDIR;
}
const struct file_operations nfs4_file_operations = {
.llseek = nfs_file_llseek,
.read = do_sync_read,
.write = do_sync_write,
.aio_read = nfs_file_read,
.aio_write = nfs_file_write,
.mmap = nfs_file_mmap,
.open = nfs4_file_open,
.flush = nfs_file_flush,
.release = nfs_file_release,
.fsync = nfs_file_fsync,
.lock = nfs_lock,
.flock = nfs_flock,
.splice_read = nfs_file_splice_read,
.splice_write = nfs_file_splice_write,
.check_flags = nfs_check_flags,
.setlease = nfs_setlease,
};
#endif /* CONFIG_NFS_V4 */

2
fs/nfs/inode.c
View File

@ -291,7 +291,7 @@ nfs_fhget(struct super_block *sb, struct nfs_fh *fh, struct nfs_fattr *fattr)
*/
inode->i_op = NFS_SB(sb)->nfs_client->rpc_ops->file_inode_ops;
if (S_ISREG(inode->i_mode)) {
inode->i_fop = &nfs_file_operations;
inode->i_fop = NFS_SB(sb)->nfs_client->rpc_ops->file_ops;
inode->i_data.a_ops = &nfs_file_aops;
inode->i_data.backing_dev_info = &NFS_SB(sb)->backing_dev_info;
} else if (S_ISDIR(inode->i_mode)) {

2
fs/nfs/internal.h
View File

@ -299,6 +299,8 @@ extern void nfs_read_prepare(struct rpc_task *task, void *calldata);
extern int nfs_generic_pagein(struct nfs_pageio_descriptor *desc,
struct list_head *head);
extern void nfs_pageio_init_read_mds(struct nfs_pageio_descriptor *pgio,
struct inode *inode);
extern void nfs_pageio_reset_read_mds(struct nfs_pageio_descriptor *pgio);
extern void nfs_readdata_release(struct nfs_read_data *rdata);

1
fs/nfs/nfs3proc.c
View File

@ -853,6 +853,7 @@ const struct nfs_rpc_ops nfs_v3_clientops = {
.dentry_ops = &nfs_dentry_operations,
.dir_inode_ops = &nfs3_dir_inode_operations,
.file_inode_ops = &nfs3_file_inode_operations,
.file_ops = &nfs_file_operations,
.getroot = nfs3_proc_get_root,
.getattr = nfs3_proc_getattr,
.setattr = nfs3_proc_setattr,

4
fs/nfs/nfs4proc.c
View File

@ -2464,8 +2464,7 @@ static int nfs4_proc_lookup(struct rpc_clnt *clnt, struct inode *dir, struct qst
case -NFS4ERR_BADNAME:
return -ENOENT;
case -NFS4ERR_MOVED:
err = nfs4_get_referral(dir, name, fattr, fhandle);
break;
return nfs4_get_referral(dir, name, fattr, fhandle);
case -NFS4ERR_WRONGSEC:
nfs_fixup_secinfo_attributes(fattr, fhandle);
}
@ -6253,6 +6252,7 @@ const struct nfs_rpc_ops nfs_v4_clientops = {
.dentry_ops = &nfs4_dentry_operations,
.dir_inode_ops = &nfs4_dir_inode_operations,
.file_inode_ops = &nfs4_file_inode_operations,
.file_ops = &nfs4_file_operations,
.getroot = nfs4_proc_get_root,
.getattr = nfs4_proc_getattr,
.setattr = nfs4_proc_setattr,

26
fs/nfs/pnfs.c
View File

@ -1260,6 +1260,25 @@ pnfs_generic_pg_writepages(struct nfs_pageio_descriptor *desc)
}
EXPORT_SYMBOL_GPL(pnfs_generic_pg_writepages);
static void pnfs_ld_handle_read_error(struct nfs_read_data *data)
{
struct nfs_pageio_descriptor pgio;
put_lseg(data->lseg);
data->lseg = NULL;
dprintk("pnfs write error = %d\n", data->pnfs_error);
nfs_pageio_init_read_mds(&pgio, data->inode);
while (!list_empty(&data->pages)) {
struct nfs_page *req = nfs_list_entry(data->pages.next);
nfs_list_remove_request(req);
nfs_pageio_add_request(&pgio, req);
}
nfs_pageio_complete(&pgio);
}
/*
* Called by non rpc-based layout drivers
*/
@ -1268,11 +1287,8 @@ void pnfs_ld_read_done(struct nfs_read_data *data)
if (likely(!data->pnfs_error)) {
__nfs4_read_done_cb(data);
data->mds_ops->rpc_call_done(&data->task, data);
} else {
put_lseg(data->lseg);
data->lseg = NULL;
dprintk("pnfs write error = %d\n", data->pnfs_error);
}
} else
pnfs_ld_handle_read_error(data);
data->mds_ops->rpc_release(data);
}
EXPORT_SYMBOL_GPL(pnfs_ld_read_done);

1
fs/nfs/proc.c
View File

@ -710,6 +710,7 @@ const struct nfs_rpc_ops nfs_v2_clientops = {
.dentry_ops = &nfs_dentry_operations,
.dir_inode_ops = &nfs_dir_inode_operations,
.file_inode_ops = &nfs_file_inode_operations,
.file_ops = &nfs_file_operations,
.getroot = nfs_proc_get_root,
.getattr = nfs_proc_getattr,
.setattr = nfs_proc_setattr,

14
fs/nfs/read.c
View File

@ -109,7 +109,7 @@ static void nfs_readpage_truncate_uninitialised_page(struct nfs_read_data *data)
}
}
static void nfs_pageio_init_read_mds(struct nfs_pageio_descriptor *pgio,
void nfs_pageio_init_read_mds(struct nfs_pageio_descriptor *pgio,
struct inode *inode)
{
nfs_pageio_init(pgio, inode, &nfs_pageio_read_ops,
@ -534,23 +534,13 @@ static void nfs_readpage_result_full(struct rpc_task *task, void *calldata)
static void nfs_readpage_release_full(void *calldata)
{
struct nfs_read_data *data = calldata;
struct nfs_pageio_descriptor pgio;
if (data->pnfs_error) {
nfs_pageio_init_read_mds(&pgio, data->inode);
pgio.pg_recoalesce = 1;
}
while (!list_empty(&data->pages)) {
struct nfs_page *req = nfs_list_entry(data->pages.next);
nfs_list_remove_request(req);
if (!data->pnfs_error)
nfs_readpage_release(req);
else
nfs_pageio_add_request(&pgio, req);
nfs_readpage_release(req);
}
if (data->pnfs_error)
nfs_pageio_complete(&pgio);
nfs_readdata_release(calldata);
}

3
include/linux/nfs_fs.h
View File

@ -410,6 +410,9 @@ extern const struct inode_operations nfs_file_inode_operations;
extern const struct inode_operations nfs3_file_inode_operations;
#endif /* CONFIG_NFS_V3 */
extern const struct file_operations nfs_file_operations;
#ifdef CONFIG_NFS_V4
extern const struct file_operations nfs4_file_operations;
#endif /* CONFIG_NFS_V4 */
extern const struct address_space_operations nfs_file_aops;
extern const struct address_space_operations nfs_dir_aops;

1
include/linux/nfs_xdr.h
View File

@ -1192,6 +1192,7 @@ struct nfs_rpc_ops {
const struct dentry_operations *dentry_ops;
const struct inode_operations *dir_inode_ops;
const struct inode_operations *file_inode_ops;
const struct file_operations *file_ops;
int (*getroot) (struct nfs_server *, struct nfs_fh *,
struct nfs_fsinfo *);

4
net/sunrpc/xprtsock.c
View File

@ -2530,8 +2530,10 @@ static struct rpc_xprt *xs_setup_xprt(struct xprt_create *args,
int err;
err = xs_init_anyaddr(args->dstaddr->sa_family,
(struct sockaddr *)&new->srcaddr);
if (err != 0)
if (err != 0) {
xprt_free(xprt);
return ERR_PTR(err);
}
}
return xprt;