From 5e7f37a76fa5b604949020b7317962262812b2dd Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Tue, 1 Apr 2008 18:58:49 -0400 Subject: NLM/lockd: Add a reference counter to struct nlm_rqst When we replace the existing synchronous RPC calls with asynchronous calls, the reference count will be needed in order to allow us to examine the result of the RPC call. Signed-off-by: Trond Myklebust --- fs/lockd/clntproc.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'fs/lockd/clntproc.c') diff --git a/fs/lockd/clntproc.c b/fs/lockd/clntproc.c index 4e1c0123b45d..749eb5328cb0 100644 --- a/fs/lockd/clntproc.c +++ b/fs/lockd/clntproc.c @@ -221,6 +221,7 @@ struct nlm_rqst *nlm_alloc_call(struct nlm_host *host) for(;;) { call = kzalloc(sizeof(*call), GFP_KERNEL); if (call != NULL) { + 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; @@ -237,6 +238,8 @@ struct nlm_rqst *nlm_alloc_call(struct nlm_host *host) void nlm_release_call(struct nlm_rqst *call) { + if (!atomic_dec_and_test(&call->a_count)) + return; nlm_release_host(call->a_host); nlmclnt_release_lockargs(call); kfree(call); -- cgit v1.2.3