Steven Whitehouse d5341a9241 GFS2: Make "try" lock not try quite so hard ... This looks like a big change, but in reality its only a single line of actual code change, the rest is just moving a function to before its new caller. The "try" flag for glocks is a rather subtle and delicate setting since it requires that the state machine tries just hard enough to ensure that it has a good chance of getting the requested lock, but no so hard that the request can land up blocked behind another. The patch adds in an additional check which will fail any queued try locks if there is another request blocking the try lock request which is not granted and compatible, nor in progress already. The check is made only after all pending locks which may be granted have been granted. I've checked this with the reproducer for the reported flock bug which this is intended to fix, and it now passes. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>		2010-07-29 09:37:38 +01:00
..
acl.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixes	2010-05-25 08:17:51 -07:00
acl.h	gfs: constify xattr_handler	2010-05-21 18:31:20 -04:00
aops.c	GFS2: Simplify gfs2_write_alloc_required	2010-07-29 09:36:56 +01:00
bmap.c	GFS2: Simplify gfs2_write_alloc_required	2010-07-29 09:36:56 +01:00
bmap.h	GFS2: Simplify gfs2_write_alloc_required	2010-07-29 09:36:56 +01:00
dentry.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
dir.c	GFS2: remove dependency on __GFP_NOFAIL	2010-07-29 09:37:18 +01:00
dir.h	GFS2: Fix bug in gfs2_lock_fs_check_clean()	2009-01-05 07:39:11 +00:00
export.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmw	2010-05-21 07:29:15 -07:00
file.c	GFS2: Simplify gfs2_write_alloc_required	2010-07-29 09:36:56 +01:00
gfs2.h	[GFS2] Remove remote lock dropping code	2008-06-27 09:39:44 +01:00
glock.c	GFS2: Make "try" lock not try quite so hard	2010-07-29 09:37:38 +01:00
glock.h	GFS2: Metadata address space clean up	2010-03-01 14:07:37 +00:00
glops.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
glops.h	GFS2: Add a "demote a glock" interface to sysfs	2009-03-24 11:21:22 +00:00
incore.h	GFS2: Wait for journal id on mount if not specified on mount command line	2010-07-29 09:36:35 +01:00
inode.c	GFS2: Fix kernel NULL pointer dereference by dlm_astd	2010-07-15 09:06:25 +01:00
inode.h	GFS2: Rework reclaiming unlinked dinodes	2010-05-21 16:11:36 +01:00
Kconfig	GFS2: do not select QUOTA	2010-03-09 10:08:36 +00:00
lock_dlm.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
log.c	GFS2: Rework reclaiming unlinked dinodes	2010-05-21 16:11:36 +01:00
log.h	GFS2: Rework reclaiming unlinked dinodes	2010-05-21 16:11:36 +01:00
lops.c	GFS2: Various gfs2_logd improvements	2010-05-05 09:39:18 +01:00
lops.h	[GFS2] Only do lo_incore_commit once	2008-03-31 10:39:54 +01:00
main.c	GFS2: Remove space from slab cache name	2010-03-29 14:26:49 +01:00
Makefile	GFS2: Rename eattr.[ch] as xattr.[ch]	2009-08-26 18:51:04 +01:00
meta_io.c	GFS2: Eliminate useless err variable	2010-05-12 09:52:50 +01:00
meta_io.h	GFS2: Metadata address space clean up	2010-03-01 14:07:37 +00:00
ops_fstype.c	GFS2: Wait for journal id on mount if not specified on mount command line	2010-07-29 09:36:35 +01:00
ops_inode.c	kill spurious reference to vmtruncate	2010-05-27 22:15:42 -04:00
quota.c	GFS2: Simplify gfs2_write_alloc_required	2010-07-29 09:36:56 +01:00
quota.h	mm: add context argument to shrinker callback	2010-07-19 14:56:17 +10:00
recovery.c	GFS2: Tag all metadata with jid	2009-12-03 11:58:47 +00:00
recovery.h	GFS2: Umount recovery race fix	2009-05-19 10:01:18 +01:00
rgrp.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixes	2010-05-25 08:17:51 -07:00
rgrp.h	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
super.c	GFS2: Simplify gfs2_write_alloc_required	2010-07-29 09:36:56 +01:00
super.h	gfs: constify xattr_handler	2010-05-21 18:31:20 -04:00
sys.c	GFS2: Wait for journal id on mount if not specified on mount command line	2010-07-29 09:36:35 +01:00
sys.h	GFS2: Remove ancient, unused code	2009-01-05 07:39:13 +00:00
trace_gfs2.h	tracing/events: Move TRACE_SYSTEM outside of include guard	2009-07-13 10:59:55 +02:00
trans.c	GFS2: Various gfs2_logd improvements	2010-05-05 09:39:18 +01:00
trans.h	[GFS2] Update gfs2_trans_add_unrevoke to accept extents	2008-03-31 10:40:42 +01:00
util.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
util.h	GFS2: Metadata address space clean up	2010-03-01 14:07:37 +00:00
xattr.c	gfs: constify xattr_handler	2010-05-21 18:31:20 -04:00
xattr.h	sanitize xattr handler prototypes	2009-12-16 12:16:49 -05:00