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lockd: move grace period checks to common code 

Do all the grace period checks in svclock.c.  This simplifies the code a
bit, and will ease some later changes.

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
This commit is contained in:
J. Bruce Fields 2008-02-06 13:59:23 -05:00
parent af558e33be
commit b2b5028905
4 changed files with 18 additions and 28 deletions
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15
fs/lockd/svc4proc.c
View File

@ -88,12 +88,6 @@ nlm4svc_proc_test(struct svc_rqst *rqstp, struct nlm_args *argp,
dprintk("lockd: TEST4 called\n");
resp->cookie = argp->cookie;
/* Don't accept test requests during grace period */
if (locks_in_grace()) {
resp->status = nlm_lck_denied_grace_period;
return rc;
}
/* Obtain client and file */
if ((resp->status = nlm4svc_retrieve_args(rqstp, argp, &host, &file)))
return resp->status == nlm_drop_reply ? rpc_drop_reply :rpc_success;
@ -122,12 +116,6 @@ nlm4svc_proc_lock(struct svc_rqst *rqstp, struct nlm_args *argp,
resp->cookie = argp->cookie;
/* Don't accept new lock requests during grace period */
if (locks_in_grace() && !argp->reclaim) {
resp->status = nlm_lck_denied_grace_period;
return rc;
}
/* Obtain client and file */
if ((resp->status = nlm4svc_retrieve_args(rqstp, argp, &host, &file)))
return resp->status == nlm_drop_reply ? rpc_drop_reply :rpc_success;
@ -146,7 +134,8 @@ nlm4svc_proc_lock(struct svc_rqst *rqstp, struct nlm_args *argp,
/* Now try to lock the file */
resp->status = nlmsvc_lock(rqstp, file, host, &argp->lock,
argp->block, &argp->cookie);
argp->block, &argp->cookie,
argp->reclaim);
if (resp->status == nlm_drop_reply)
rc = rpc_drop_reply;
else

14
fs/lockd/svclock.c
View File

@ -360,7 +360,7 @@ nlmsvc_defer_lock_rqst(struct svc_rqst *rqstp, struct nlm_block *block)
__be32
nlmsvc_lock(struct svc_rqst *rqstp, struct nlm_file *file,
struct nlm_host *host, struct nlm_lock *lock, int wait,
struct nlm_cookie *cookie)
struct nlm_cookie *cookie, int reclaim)
{
struct nlm_block *block = NULL;
int error;
@ -406,6 +406,11 @@ nlmsvc_lock(struct svc_rqst *rqstp, struct nlm_file *file,
goto out;
}
if (locks_in_grace() && !reclaim) {
ret = nlm_lck_denied_grace_period;
goto out;
}
if (!wait)
lock->fl.fl_flags &= ~FL_SLEEP;
error = vfs_lock_file(file->f_file, F_SETLK, &lock->fl, NULL);
@ -502,6 +507,10 @@ nlmsvc_testlock(struct svc_rqst *rqstp, struct nlm_file *file,
goto out;
}
if (locks_in_grace()) {
ret = nlm_lck_denied_grace_period;
goto out;
}
error = vfs_test_lock(file->f_file, &lock->fl);
if (error == FILE_LOCK_DEFERRED) {
ret = nlmsvc_defer_lock_rqst(rqstp, block);
@ -582,6 +591,9 @@ nlmsvc_cancel_blocked(struct nlm_file *file, struct nlm_lock *lock)
(long long)lock->fl.fl_start,
(long long)lock->fl.fl_end);
if (locks_in_grace())
return nlm_lck_denied_grace_period;
mutex_lock(&file->f_mutex);
block = nlmsvc_lookup_block(file, lock);
mutex_unlock(&file->f_mutex);

15
fs/lockd/svcproc.c
View File

@ -117,12 +117,6 @@ nlmsvc_proc_test(struct svc_rqst *rqstp, struct nlm_args *argp,
dprintk("lockd: TEST called\n");
resp->cookie = argp->cookie;
/* Don't accept test requests during grace period */
if (locks_in_grace()) {
resp->status = nlm_lck_denied_grace_period;
return rc;
}
/* Obtain client and file */
if ((resp->status = nlmsvc_retrieve_args(rqstp, argp, &host, &file)))
return resp->status == nlm_drop_reply ? rpc_drop_reply :rpc_success;
@ -152,12 +146,6 @@ nlmsvc_proc_lock(struct svc_rqst *rqstp, struct nlm_args *argp,
resp->cookie = argp->cookie;
/* Don't accept new lock requests during grace period */
if (locks_in_grace() && !argp->reclaim) {
resp->status = nlm_lck_denied_grace_period;
return rc;
}
/* Obtain client and file */
if ((resp->status = nlmsvc_retrieve_args(rqstp, argp, &host, &file)))
return resp->status == nlm_drop_reply ? rpc_drop_reply :rpc_success;
@ -176,7 +164,8 @@ nlmsvc_proc_lock(struct svc_rqst *rqstp, struct nlm_args *argp,
/* Now try to lock the file */
resp->status = cast_status(nlmsvc_lock(rqstp, file, host, &argp->lock,
argp->block, &argp->cookie));
argp->block, &argp->cookie,
argp->reclaim));
if (resp->status == nlm_drop_reply)
rc = rpc_drop_reply;
else

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

@ -242,7 +242,7 @@ typedef int (*nlm_host_match_fn_t)(void *cur, struct nlm_host *ref);
*/
__be32 nlmsvc_lock(struct svc_rqst *, struct nlm_file *,
struct nlm_host *, struct nlm_lock *, int,
struct nlm_cookie *);
struct nlm_cookie *, int);
__be32 nlmsvc_unlock(struct nlm_file *, struct nlm_lock *);
__be32 nlmsvc_testlock(struct svc_rqst *, struct nlm_file *,
struct nlm_host *, struct nlm_lock *,