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| author | J. Bruce Fields <bfields@redhat.com> | 2010-10-26 18:25:30 -0400 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2010-10-27 21:39:50 +0200 |
| commit | a282a1fa6b23bd21ba0b86e53ed2a316b001836f (patch) | |
| tree | 8fbd81efed26f13fd53be66804065639ee71a89f | |
| parent | 763641d81202834e9d64de2019d1edec12868f4f (diff) | |
| download | linux-a282a1fa6b23bd21ba0b86e53ed2a316b001836f.tar.gz linux-a282a1fa6b23bd21ba0b86e53ed2a316b001836f.tar.bz2 linux-a282a1fa6b23bd21ba0b86e53ed2a316b001836f.zip | |
lockd: fix nlmsvc_notify_blocked locking
nlmsvc_notify_blocked walks the nlm_blocked list,
which requires nlm_blocked_lock.
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| -rw-r--r-- | fs/lockd/svclock.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/fs/lockd/svclock.c b/fs/lockd/svclock.c index 6f1ef000975a..c462d346acbd 100644 --- a/fs/lockd/svclock.c +++ b/fs/lockd/svclock.c @@ -700,14 +700,16 @@ nlmsvc_notify_blocked(struct file_lock *fl) struct nlm_block *block; dprintk("lockd: VFS unblock notification for block %p\n", fl); + spin_lock(&nlm_blocked_lock); list_for_each_entry(block, &nlm_blocked, b_list) { if (nlm_compare_locks(&block->b_call->a_args.lock.fl, fl)) { - nlmsvc_insert_block(block, 0); + nlmsvc_insert_block_locked(block, 0); + spin_unlock(&nlm_blocked_lock); svc_wake_up(block->b_daemon); return; } } - + spin_unlock(&nlm_blocked_lock); printk(KERN_WARNING "lockd: notification for unknown block!\n"); } |