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| author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2005-06-22 17:16:31 +0000 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2005-06-22 16:07:41 -0400 |
| commit | 4f15e2b1f4f3a56e46201714b39436c32218d547 (patch) | |
| tree | db694827826cc80b27958f8b6eda99be44953a2c /fs/lockd/clntlock.c | |
| parent | 80fec4c62e2cf544ac26e53f3e0d2f73df6820b9 (diff) | |
| download | linux-4f15e2b1f4f3a56e46201714b39436c32218d547.tar.gz linux-4f15e2b1f4f3a56e46201714b39436c32218d547.tar.bz2 linux-4f15e2b1f4f3a56e46201714b39436c32218d547.zip | |
[PATCH] NLM: cleanup for blocked locks.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/lockd/clntlock.c')
| -rw-r--r-- | fs/lockd/clntlock.c | 18 |
1 files changed, 6 insertions, 12 deletions
diff --git a/fs/lockd/clntlock.c b/fs/lockd/clntlock.c index ef7103b8c5bd..44adb84183b6 100644 --- a/fs/lockd/clntlock.c +++ b/fs/lockd/clntlock.c @@ -31,7 +31,7 @@ static int reclaimer(void *ptr); * This is the representation of a blocked client lock. */ struct nlm_wait { - struct nlm_wait * b_next; /* linked list */ + struct list_head b_list; /* linked list */ wait_queue_head_t b_wait; /* where to wait on */ struct nlm_host * b_host; struct file_lock * b_lock; /* local file lock */ @@ -39,7 +39,7 @@ struct nlm_wait { u32 b_status; /* grant callback status */ }; -static struct nlm_wait * nlm_blocked; +static LIST_HEAD(nlm_blocked); /* * Block on a lock @@ -55,8 +55,7 @@ nlmclnt_block(struct nlm_host *host, struct file_lock *fl, u32 *statp) block.b_lock = fl; init_waitqueue_head(&block.b_wait); block.b_status = NLM_LCK_BLOCKED; - block.b_next = nlm_blocked; - nlm_blocked = █ + list_add(&block.b_list, &nlm_blocked); /* Remember pseudo nsm state */ pstate = host->h_state; @@ -71,12 +70,7 @@ nlmclnt_block(struct nlm_host *host, struct file_lock *fl, u32 *statp) */ sleep_on_timeout(&block.b_wait, 30*HZ); - for (head = &nlm_blocked; *head; head = &(*head)->b_next) { - if (*head == &block) { - *head = block.b_next; - break; - } - } + list_del(&block.b_list); if (!signalled()) { *statp = block.b_status; @@ -105,7 +99,7 @@ nlmclnt_grant(struct nlm_lock *lock) * Look up blocked request based on arguments. * Warning: must not use cookie to match it! */ - for (block = nlm_blocked; block; block = block->b_next) { + list_for_each_entry(block, &nlm_blocked, b_list) { if (nlm_compare_locks(block->b_lock, &lock->fl)) break; } @@ -230,7 +224,7 @@ restart: host->h_reclaiming = 0; /* Now, wake up all processes that sleep on a blocked lock */ - for (block = nlm_blocked; block; block = block->b_next) { + list_for_each_entry(block, &nlm_blocked, b_list) { if (block->b_host == host) { block->b_status = NLM_LCK_DENIED_GRACE_PERIOD; wake_up(&block->b_wait); |