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nlm: minor nlm_lookup_file argument change 

It'll come in handy to get the whole nlm_lock.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
This commit is contained in:
J. Bruce Fields 2021-08-23 12:01:18 -04:00 committed by Chuck Lever
parent 7de875b231
commit 2dc6f19e4f
4 changed files with 12 additions and 10 deletions
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3
fs/lockd/svc4proc.c
View File

@ -40,7 +40,8 @@ nlm4svc_retrieve_args(struct svc_rqst *rqstp, struct nlm_args *argp,
/* Obtain file pointer. Not used by FREE_ALL call. */
if (filp != NULL) {
if ((error = nlm_lookup_file(rqstp, &file, &lock->fh)) != 0)
error = nlm_lookup_file(rqstp, &file, lock);
if (error)
goto no_locks;
*filp = file;

2
fs/lockd/svcproc.c
View File

@ -69,7 +69,7 @@ nlmsvc_retrieve_args(struct svc_rqst *rqstp, struct nlm_args *argp,
/* Obtain file pointer. Not used by FREE_ALL call. */
if (filp != NULL) {
error = cast_status(nlm_lookup_file(rqstp, &file, &lock->fh));
error = cast_status(nlm_lookup_file(rqstp, &file, lock));
if (error != 0)
goto no_locks;
*filp = file;

15
fs/lockd/svcsubs.c
View File

@ -82,31 +82,31 @@ static inline unsigned int file_hash(struct nfs_fh *f)
*/
__be32
nlm_lookup_file(struct svc_rqst *rqstp, struct nlm_file **result,
struct nfs_fh *f)
struct nlm_lock *lock)
{
struct nlm_file *file;
unsigned int hash;
__be32 nfserr;
nlm_debug_print_fh("nlm_lookup_file", f);
nlm_debug_print_fh("nlm_lookup_file", &lock->fh);
hash = file_hash(f);
hash = file_hash(&lock->fh);
/* Lock file table */
mutex_lock(&nlm_file_mutex);
hlist_for_each_entry(file, &nlm_files[hash], f_list)
if (!nfs_compare_fh(&file->f_handle, f))
if (!nfs_compare_fh(&file->f_handle, &lock->fh))
goto found;
nlm_debug_print_fh("creating file for", f);
nlm_debug_print_fh("creating file for", &lock->fh);
nfserr = nlm_lck_denied_nolocks;
file = kzalloc(sizeof(*file), GFP_KERNEL);
if (!file)
goto out_unlock;
memcpy(&file->f_handle, f, sizeof(struct nfs_fh));
memcpy(&file->f_handle, &lock->fh, sizeof(struct nfs_fh));
mutex_init(&file->f_mutex);
INIT_HLIST_NODE(&file->f_list);
INIT_LIST_HEAD(&file->f_blocks);
@ -117,7 +117,8 @@ nlm_lookup_file(struct svc_rqst *rqstp, struct nlm_file **result,
* We have to make sure we have the right credential to open
* the file.
*/
if ((nfserr = nlmsvc_ops->fopen(rqstp, f, &file->f_file)) != 0) {
nfserr = nlmsvc_ops->fopen(rqstp, &lock->fh, &file->f_file);
if (nfserr) {
dprintk("lockd: open failed (error %d)\n", nfserr);
goto out_free;
}

2
include/linux/lockd/lockd.h
View File

@ -286,7 +286,7 @@ void nlmsvc_locks_init_private(struct file_lock *, struct nlm_host *, pid_t);
* File handling for the server personality
*/
__be32 nlm_lookup_file(struct svc_rqst *, struct nlm_file **,
struct nfs_fh *);
struct nlm_lock *);
void nlm_release_file(struct nlm_file *);
void nlmsvc_release_lockowner(struct nlm_lock *);
void nlmsvc_mark_resources(struct net *);