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[5/5] locks: update Locking documentation to clarify fl_release_private behavior

Message ID 1407854893-2698-6-git-send-email-jlayton@primarydata.com (mailing list archive)
State New, archived
Headers show

Commit Message

Jeff Layton Aug. 12, 2014, 2:48 p.m. UTC
Signed-off-by: Jeff Layton <jlayton@primarydata.com>
---
 Documentation/filesystems/Locking | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)
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Patch

diff --git a/Documentation/filesystems/Locking b/Documentation/filesystems/Locking
index b18dd1779029..f1997e9da61f 100644
--- a/Documentation/filesystems/Locking
+++ b/Documentation/filesystems/Locking
@@ -349,7 +349,11 @@  prototypes:
 locking rules:
 			inode->i_lock	may block
 fl_copy_lock:		yes		no
-fl_release_private:	maybe		no
+fl_release_private:	maybe		maybe[1]
+
+[1]:	->fl_release_private for flock or POSIX locks is currently allowed
+to block. Leases however can still be freed while the i_lock is held and
+so fl_release_private called on a lease should not block.
 
 ----------------------- lock_manager_operations ---------------------------
 prototypes: