aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorJeff Layton <jlayton@redhat.com>2008-07-15 14:06:48 -0400
committerJ. Bruce Fields <bfields@citi.umich.edu>2008-07-15 14:26:52 -0400
commit8f920d5e29f86d3425a68e1c3bc264d1f6f55112 (patch)
treedb3054c6d5f0a2a6b239b204171e119c69ab0217
parentb0e92aae157cbf78ede7b7dd03967b49fcb2102e (diff)
lockd: eliminate duplicate nlmsvc_lookup_host call from nlmsvc_testlock
nlmsvc_testlock calls nlmsvc_lookup_host to find a nlm_host struct. The callers of this functions, however, call nlmsvc_retrieve_args or nlm4svc_retrieve_args, which also return a nlm_host struct. Change nlmsvc_testlock to take a host arg instead of calling nlmsvc_lookup_host itself and change the callers to pass a pointer to the nlm_host they've already found. We take a reference to host in the place where nlmsvc_testlock() previous did a new lookup, so the reference counting is unchanged from before. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
-rw-r--r--fs/lockd/svc4proc.c2
-rw-r--r--fs/lockd/svclock.c12
-rw-r--r--fs/lockd/svcproc.c2
-rw-r--r--include/linux/lockd/lockd.h3
4 files changed, 7 insertions, 12 deletions
diff --git a/fs/lockd/svc4proc.c b/fs/lockd/svc4proc.c
index 006a832d46f..8cfb9daa7c7 100644
--- a/fs/lockd/svc4proc.c
+++ b/fs/lockd/svc4proc.c
@@ -99,7 +99,7 @@ nlm4svc_proc_test(struct svc_rqst *rqstp, struct nlm_args *argp,
return resp->status == nlm_drop_reply ? rpc_drop_reply :rpc_success;
/* Now check for conflicting locks */
- resp->status = nlmsvc_testlock(rqstp, file, &argp->lock, &resp->lock, &resp->cookie);
+ resp->status = nlmsvc_testlock(rqstp, file, host, &argp->lock, &resp->lock, &resp->cookie);
if (resp->status == nlm_drop_reply)
rc = rpc_drop_reply;
else
diff --git a/fs/lockd/svclock.c b/fs/lockd/svclock.c
index 81aca859bfd..f40afb3a0e6 100644
--- a/fs/lockd/svclock.c
+++ b/fs/lockd/svclock.c
@@ -460,8 +460,8 @@ out:
*/
__be32
nlmsvc_testlock(struct svc_rqst *rqstp, struct nlm_file *file,
- struct nlm_lock *lock, struct nlm_lock *conflock,
- struct nlm_cookie *cookie)
+ struct nlm_host *host, struct nlm_lock *lock,
+ struct nlm_lock *conflock, struct nlm_cookie *cookie)
{
struct nlm_block *block = NULL;
int error;
@@ -479,16 +479,10 @@ nlmsvc_testlock(struct svc_rqst *rqstp, struct nlm_file *file,
if (block == NULL) {
struct file_lock *conf = kzalloc(sizeof(*conf), GFP_KERNEL);
- struct nlm_host *host;
if (conf == NULL)
return nlm_granted;
- /* Create host handle for callback */
- host = nlmsvc_lookup_host(rqstp, lock->caller, lock->len);
- if (host == NULL) {
- kfree(conf);
- return nlm_lck_denied_nolocks;
- }
+ nlm_get_host(host);
block = nlmsvc_create_block(rqstp, host, file, lock, cookie);
if (block == NULL) {
kfree(conf);
diff --git a/fs/lockd/svcproc.c b/fs/lockd/svcproc.c
index fce3d703962..e099f589b61 100644
--- a/fs/lockd/svcproc.c
+++ b/fs/lockd/svcproc.c
@@ -128,7 +128,7 @@ nlmsvc_proc_test(struct svc_rqst *rqstp, struct nlm_args *argp,
return resp->status == nlm_drop_reply ? rpc_drop_reply :rpc_success;
/* Now check for conflicting locks */
- resp->status = cast_status(nlmsvc_testlock(rqstp, file, &argp->lock, &resp->lock, &resp->cookie));
+ resp->status = cast_status(nlmsvc_testlock(rqstp, file, host, &argp->lock, &resp->lock, &resp->cookie));
if (resp->status == nlm_drop_reply)
rc = rpc_drop_reply;
else
diff --git a/include/linux/lockd/lockd.h b/include/linux/lockd/lockd.h
index 102d928f720..b27967034b5 100644
--- a/include/linux/lockd/lockd.h
+++ b/include/linux/lockd/lockd.h
@@ -203,7 +203,8 @@ __be32 nlmsvc_lock(struct svc_rqst *, struct nlm_file *,
struct nlm_lock *, int, struct nlm_cookie *);
__be32 nlmsvc_unlock(struct nlm_file *, struct nlm_lock *);
__be32 nlmsvc_testlock(struct svc_rqst *, struct nlm_file *,
- struct nlm_lock *, struct nlm_lock *, struct nlm_cookie *);
+ struct nlm_host *, struct nlm_lock *,
+ struct nlm_lock *, struct nlm_cookie *);
__be32 nlmsvc_cancel_blocked(struct nlm_file *, struct nlm_lock *);
unsigned long nlmsvc_retry_blocked(void);
void nlmsvc_traverse_blocks(struct nlm_host *, struct nlm_file *,