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| author | Al Viro <viro@zeniv.linux.org.uk> | 2012-07-26 00:39:50 +0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2012-07-29 23:09:57 +0400 |
| commit | 446945ab9a82515af4b099107eda27050e077c58 (patch) | |
| tree | 1be9a17759fc754d44a10549a2b43a5aa84a8e2f | |
| parent | a51d9eaa41866ab6b4b6ecad7b621f8b66ece0dc (diff) | |
| download | linux-446945ab9a82515af4b099107eda27050e077c58.tar.gz linux-446945ab9a82515af4b099107eda27050e077c58.tar.bz2 linux-446945ab9a82515af4b099107eda27050e077c58.zip | |
lockd: shift grabbing a reference to nlm_host into nlm_alloc_call()
It's used both for client and server hosts; we can't do nlmclnt_release_host()
on failure exits, since the host might need nlmsvc_release_host(), with BUG_ON()
for calling the wrong one. Makes life simpler for callers, actually...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| -rw-r--r-- | fs/lockd/clntproc.c | 9 | ||||
| -rw-r--r-- | fs/lockd/svc4proc.c | 1 | ||||
| -rw-r--r-- | fs/lockd/svclock.c | 1 | ||||
| -rw-r--r-- | fs/lockd/svcproc.c | 1 |
4 files changed, 4 insertions, 8 deletions
diff --git a/fs/lockd/clntproc.c b/fs/lockd/clntproc.c index 8392cb85bd54..27c74f32671b 100644 --- a/fs/lockd/clntproc.c +++ b/fs/lockd/clntproc.c @@ -156,7 +156,6 @@ int nlmclnt_proc(struct nlm_host *host, int cmd, struct file_lock *fl) struct nlm_rqst *call; int status; - nlm_get_host(host); call = nlm_alloc_call(host); if (call == NULL) return -ENOMEM; @@ -185,9 +184,6 @@ EXPORT_SYMBOL_GPL(nlmclnt_proc); /* * Allocate an NLM RPC call struct - * - * Note: the caller must hold a reference to host. In case of failure, - * this reference will be released. */ struct nlm_rqst *nlm_alloc_call(struct nlm_host *host) { @@ -199,7 +195,7 @@ struct nlm_rqst *nlm_alloc_call(struct nlm_host *host) atomic_set(&call->a_count, 1); locks_init_lock(&call->a_args.lock.fl); locks_init_lock(&call->a_res.lock.fl); - call->a_host = host; + call->a_host = nlm_get_host(host); return call; } if (signalled()) @@ -207,7 +203,6 @@ struct nlm_rqst *nlm_alloc_call(struct nlm_host *host) printk("nlm_alloc_call: failed, waiting for memory\n"); schedule_timeout_interruptible(5*HZ); } - nlmclnt_release_host(host); return NULL; } @@ -750,7 +745,7 @@ static int nlmclnt_cancel(struct nlm_host *host, int block, struct file_lock *fl dprintk("lockd: blocking lock attempt was interrupted by a signal.\n" " Attempting to cancel lock.\n"); - req = nlm_alloc_call(nlm_get_host(host)); + req = nlm_alloc_call(host); if (!req) return -ENOMEM; req->a_flags = RPC_TASK_ASYNC; diff --git a/fs/lockd/svc4proc.c b/fs/lockd/svc4proc.c index 9a41fdc19511..185fda894789 100644 --- a/fs/lockd/svc4proc.c +++ b/fs/lockd/svc4proc.c @@ -256,6 +256,7 @@ static __be32 nlm4svc_callback(struct svc_rqst *rqstp, u32 proc, struct nlm_args return rpc_system_err; call = nlm_alloc_call(host); + nlmsvc_release_host(host); if (call == NULL) return rpc_system_err; diff --git a/fs/lockd/svclock.c b/fs/lockd/svclock.c index e46353f41a42..b54acaf65987 100644 --- a/fs/lockd/svclock.c +++ b/fs/lockd/svclock.c @@ -219,7 +219,6 @@ nlmsvc_create_block(struct svc_rqst *rqstp, struct nlm_host *host, struct nlm_block *block; struct nlm_rqst *call = NULL; - nlm_get_host(host); call = nlm_alloc_call(host); if (call == NULL) return NULL; diff --git a/fs/lockd/svcproc.c b/fs/lockd/svcproc.c index d27aab11f324..90cfe9a0bf55 100644 --- a/fs/lockd/svcproc.c +++ b/fs/lockd/svcproc.c @@ -294,6 +294,7 @@ static __be32 nlmsvc_callback(struct svc_rqst *rqstp, u32 proc, struct nlm_args return rpc_system_err; call = nlm_alloc_call(host); + nlmsvc_release_host(host); if (call == NULL) return rpc_system_err; |