diff options
| author | Jeff Layton <jeff.layton@primarydata.com> | 2016-01-08 13:30:43 +0100 |
|---|---|---|
| committer | Jeff Layton <jeff.layton@primarydata.com> | 2016-01-08 17:38:07 +0100 |
| commit | 0752ba807b04ccd69cb4bc8bbf829a80ee208a3c (patch) | |
| tree | e74312e3335b7241a2c373bb2c076b73c1f9cda0 /fs/locks.c | |
| parent | locks: fix unlock when fcntl_setlk races with a close (diff) | |
| download | linux-0752ba807b04ccd69cb4bc8bbf829a80ee208a3c.tar.xz linux-0752ba807b04ccd69cb4bc8bbf829a80ee208a3c.zip | |
locks: don't check for race with close when setting OFD lock
We don't clean out OFD locks on close(), so there's no need to check
for a race with them here. They'll get cleaned out at the same time
that flock locks are.
Signed-off-by: Jeff Layton <jeff.layton@primarydata.com>
Acked-by: "J. Bruce Fields" <bfields@fieldses.org>
Diffstat (limited to 'fs/locks.c')
| -rw-r--r-- | fs/locks.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/fs/locks.c b/fs/locks.c index c263aff793bc..e72077d5a664 100644 --- a/fs/locks.c +++ b/fs/locks.c @@ -2219,10 +2219,12 @@ int fcntl_setlk(unsigned int fd, struct file *filp, unsigned int cmd, error = do_lock_file_wait(filp, cmd, file_lock); /* - * Attempt to detect a close/fcntl race and recover by - * releasing the lock that was just acquired. + * Attempt to detect a close/fcntl race and recover by releasing the + * lock that was just acquired. There is no need to do that when we're + * unlocking though, or for OFD locks. */ - if (!error && file_lock->fl_type != F_UNLCK) { + if (!error && file_lock->fl_type != F_UNLCK && + !(file_lock->fl_flags & FL_OFDLCK)) { /* * We need that spin_lock here - it prevents reordering between * update of i_flctx->flc_posix and check for it done in @@ -2361,10 +2363,12 @@ int fcntl_setlk64(unsigned int fd, struct file *filp, unsigned int cmd, error = do_lock_file_wait(filp, cmd, file_lock); /* - * Attempt to detect a close/fcntl race and recover by - * releasing the lock that was just acquired. + * Attempt to detect a close/fcntl race and recover by releasing the + * lock that was just acquired. There is no need to do that when we're + * unlocking though, or for OFD locks. */ - if (!error && file_lock->fl_type != F_UNLCK) { + if (!error && file_lock->fl_type != F_UNLCK && + !(file_lock->fl_flags & FL_OFDLCK)) { /* * We need that spin_lock here - it prevents reordering between * update of i_flctx->flc_posix and check for it done in |