David Teigland 9000831839 dlm: avoid unnecessary posix unlock ...

When the kernel clears flocks/plocks during close, it calls posix
unlock when there are flocks but no posix locks.  Without this
patch, that unnecessary posix unlock is passed to userland
(dlm_controld), across the cluster, and back to the kernel.
This can create a lot of plock activity, even when no posix
locks had been used.

This patch copies the nfs approach, and skips the full posix
unlock if there is no plock found during the vfs unlock phase.

Signed-off-by: David Teigland <teigland@redhat.com>

2013-04-08 12:03:15 -05:00

..

ast.c

dlm: fix uninitialized spinlock

2012-08-08 11:33:43 -05:00

ast.h

dlm: use workqueue for callbacks

2011-07-15 12:30:43 -05:00

config.c

fs: change return values from -EACCES to -EPERM

2013-02-26 02:46:14 -05:00

config.h

dlm: fix deadlock between dlm_send and dlm_controld

2012-08-08 11:33:35 -05:00

debug_fs.c

dlm: use rsbtbl as resource directory

2012-07-16 14:16:19 -05:00

dir.c

dlm: use rsbtbl as resource directory

2012-07-16 14:16:19 -05:00

dir.h

dlm: use rsbtbl as resource directory

2012-07-16 14:16:19 -05:00

dlm_internal.h

dlm: avoid scanning unchanged toss lists

2013-01-07 12:02:49 -06:00

Kconfig

fs/dlm: remove CONFIG_EXPERIMENTAL

2012-11-01 15:27:24 -05:00

lock.c

dlm: convert to idr_alloc()

2013-02-27 19:10:19 -08:00

lock.h

dlm: use rsbtbl as resource directory

2012-07-16 14:16:19 -05:00

lockspace.c

dlm: don't use idr_remove_all()

2013-02-27 19:10:13 -08:00

lockspace.h

dlm: detect available userspace daemon

2008-08-28 11:49:43 -05:00

lowcomms.c

hlist: drop the node parameter from iterators

2013-02-27 19:10:24 -08:00

lowcomms.h

dlm: fix deadlock between dlm_send and dlm_controld

2012-08-08 11:33:35 -05:00

lvb_table.h

[DLM] The core of the DLM for GFS2/CLVM

2006-01-18 09:30:29 +00:00

main.c

dlm: fix deadlock between dlm_send and dlm_controld

2012-08-08 11:33:35 -05:00

Makefile

dlm: move plock code from gfs2

2008-04-21 11:22:28 -05:00

member.c

dlm: fix unlock balance warnings

2012-08-08 11:33:49 -05:00

member.h

dlm: add recovery callbacks

2012-01-04 08:56:31 -06:00

memory.c

dlm: NULL dereference on failure in kmem_cache_create()

2012-05-15 10:39:28 -05:00

memory.h

dlm: improve rsb searches

2011-07-12 16:02:09 -05:00

midcomms.c

dlm: fix up memory allocation flags

2008-12-23 10:15:40 -06:00

midcomms.h

[DLM] The core of the DLM for GFS2/CLVM

2006-01-18 09:30:29 +00:00

netlink.c

netlink: Rename pid to portid to avoid confusion

2012-09-10 15:30:41 -04:00

plock.c

dlm: avoid unnecessary posix unlock

2013-04-08 12:03:15 -05:00

rcom.c

dlm: fix unlock balance warnings

2012-08-08 11:33:49 -05:00

rcom.h

dlm: use rsbtbl as resource directory

2012-07-16 14:16:19 -05:00

recover.c

dlm: convert to idr_alloc()

2013-02-27 19:10:19 -08:00

recover.h

dlm: use rsbtbl as resource directory

2012-07-16 14:16:19 -05:00

recoverd.c

dlm: fix unlock balance warnings

2012-08-08 11:33:49 -05:00

recoverd.h

dlm: fix unlock balance warnings

2012-08-08 11:33:49 -05:00

requestqueue.c

dlm: fixes for nodir mode

2012-05-02 14:15:27 -05:00

requestqueue.h

dlm: use proper C for dlm/requestqueue stuff (and fix alignment bug)

2008-02-04 01:21:32 -06:00

user.c

dlm: check the write size from user

2013-02-04 15:31:22 -06:00

user.h

dlm: record full callback state

2011-03-10 10:40:00 -06:00

util.c

dlm: do not byteswap rcom_config

2008-02-04 01:23:43 -06:00

util.h

[DLM] The core of the DLM for GFS2/CLVM

2006-01-18 09:30:29 +00:00