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| author | Kinglong Mee <kinglongmee@gmail.com> | 2014-08-22 10:18:43 -0400 |
|---|---|---|
| committer | Jeff Layton <jlayton@primarydata.com> | 2014-09-09 16:01:09 -0400 |
| commit | 5c97d7b1479982a48cf2129062b880c2555049ac (patch) | |
| tree | a0e740e0e35d0ccda973e4c13b84a89605fef176 /fs/locks.c | |
| parent | 3fe0fff18fe87c6a2179837de68d1174903c6367 (diff) | |
| download | lwn-5c97d7b1479982a48cf2129062b880c2555049ac.tar.gz lwn-5c97d7b1479982a48cf2129062b880c2555049ac.zip | |
locks: New ops in lock_manager_operations for get/put owner
NFSD or other lockmanager may increase the owner's reference,
so adds two new options for copying and releasing owner.
v5: change order from 2/6 to 3/6
v4: rename lm_copy_owner/lm_release_owner to lm_get_owner/lm_put_owner
Reviewed-by: Jeff Layton <jlayton@primarydata.com>
Signed-off-by: Kinglong Mee <kinglongmee@gmail.com>
Signed-off-by: Jeff Layton <jlayton@primarydata.com>
Diffstat (limited to 'fs/locks.c')
| -rw-r--r-- | fs/locks.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/fs/locks.c b/fs/locks.c index ec9becd02d3d..5e83f3a99377 100644 --- a/fs/locks.c +++ b/fs/locks.c @@ -230,8 +230,12 @@ void locks_release_private(struct file_lock *fl) fl->fl_ops->fl_release_private(fl); fl->fl_ops = NULL; } - fl->fl_lmops = NULL; + if (fl->fl_lmops) { + if (fl->fl_lmops->lm_put_owner) + fl->fl_lmops->lm_put_owner(fl); + fl->fl_lmops = NULL; + } } EXPORT_SYMBOL_GPL(locks_release_private); @@ -274,8 +278,12 @@ static void locks_copy_private(struct file_lock *new, struct file_lock *fl) fl->fl_ops->fl_copy_lock(new, fl); new->fl_ops = fl->fl_ops; } - if (fl->fl_lmops) + + if (fl->fl_lmops) { + if (fl->fl_lmops->lm_get_owner) + fl->fl_lmops->lm_get_owner(new, fl); new->fl_lmops = fl->fl_lmops; + } } /* |