Benjamin Marzinski 96e5d1d3ad GFS2: Test bufdata with buffer locked and gfs2_log_lock held ... In gfs2_trans_add_bh(), gfs2 was testing if a there was a bd attached to the buffer without having the gfs2_log_lock held. It was then assuming it would stay attached for the rest of the function. However, without either the log lock being held of the buffer locked, __gfs2_ail_flush() could detach bd at any time. This patch moves the locking before the test. If there isn't a bd already attached, gfs2 can safely allocate one and attach it before locking. There is no way that the newly allocated bd could be on the ail list, and thus no way for __gfs2_ail_flush() to detach it. Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>		2012-11-07 09:43:03 +00:00
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acl.c
acl.h
aops.c
bmap.c
bmap.h
dentry.c
dir.c
dir.h
export.c
file.c	GFS2: Don't call file_accessed() with a shared glock	2012-11-07 09:42:49 +00:00
gfs2.h
glock.c
glock.h
glops.c
glops.h
incore.h
inode.c
inode.h
Kconfig
lock_dlm.c
log.c
log.h
lops.c	GFS2: Test bufdata with buffer locked and gfs2_log_lock held	2012-11-07 09:43:03 +00:00
lops.h
main.c
Makefile
meta_io.c
meta_io.h
ops_fstype.c
quota.c
quota.h
recovery.c
recovery.h
rgrp.c	GFS2: Fix FITRIM argument handling	2012-11-07 09:41:58 +00:00
rgrp.h
super.c	GFS2: Don't call file_accessed() with a shared glock	2012-11-07 09:42:49 +00:00
super.h
sys.c
sys.h
trace_gfs2.h
trans.c	GFS2: Test bufdata with buffer locked and gfs2_log_lock held	2012-11-07 09:43:03 +00:00
trans.h
util.c
util.h
xattr.c
xattr.h