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>

3 files changed, 17 insertions, 27 deletions

diff --git a/fs/lockd/svc4proc.c b/fs/lockd/svc4proc.c
index 7ca617367b3e..f6f18fa5cf8b 100644
--- a/fs/lockd/svc4proc.c
+++ b/fs/lockd/svc4proc.c
@@ -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
diff --git a/fs/lockd/svclock.c b/fs/lockd/svclock.c
index cf0d5c2c318d..808d246ada4d 100644
--- a/fs/lockd/svclock.c
+++ b/fs/lockd/svclock.c
@@ -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);
diff --git a/fs/lockd/svcproc.c b/fs/lockd/svcproc.c
index 1b013e198804..a587b81338b1 100644
--- a/fs/lockd/svcproc.c
+++ b/fs/lockd/svcproc.c
@@ -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