android_kernel_oneplus_msm8998/fs/ocfs2/dlm
Ashish Samant 20ba8a53a1 ocfs2: fix locking for res->tracking and dlm->tracking_list
commit cbe355f57c8074bc4f452e5b6e35509044c6fa23 upstream.

In dlm_init_lockres() we access and modify res->tracking and
dlm->tracking_list without holding dlm->track_lock.  This can cause list
corruptions and can end up in kernel panic.

Fix this by locking res->tracking and dlm->tracking_list with
dlm->track_lock instead of dlm->spinlock.

Link: http://lkml.kernel.org/r/1529951192-4686-1-git-send-email-ashish.samant@oracle.com
Signed-off-by: Ashish Samant <ashish.samant@oracle.com>
Reviewed-by: Changwei Ge <ge.changwei@h3c.com>
Acked-by: Joseph Qi <jiangqi903@gmail.com>
Acked-by: Jun Piao <piaojun@huawei.com>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Changwei Ge <ge.changwei@h3c.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-10 08:52:13 +02:00
..
dlmapi.h ocfs2/trivial: Remove trailing whitespaces 2010-01-25 19:20:51 -08:00
dlmast.c o2dlm: fix NULL pointer dereference in o2dlm_blocking_ast_wrapper 2015-02-10 14:30:30 -08:00
dlmcommon.h ocfs2/dlm: cleanup unused function __dlm_wait_on_lockres_flags_set 2015-06-24 17:49:39 -07:00
dlmconvert.c ocfs2/dlm: fix race between convert and migration 2016-09-30 10:18:34 +02:00
dlmconvert.h
dlmdebug.c ocfs2: fix snprintf format specifier in dlmdebug.c 2015-02-10 14:30:29 -08:00
dlmdebug.h ocfs2/dlm: Cleanup dlmdebug.c 2010-12-22 18:34:44 -08:00
dlmdomain.c ocfs2/dlm: don't handle migrate lockres if already in shutdown 2018-05-30 07:49:08 +02:00
dlmdomain.h ocfs2/dlm: don't handle migrate lockres if already in shutdown 2018-05-30 07:49:08 +02:00
dlmlock.c ocfs2: remove NULL assignments on static 2014-06-04 16:53:53 -07:00
dlmmaster.c ocfs2: fix locking for res->tracking and dlm->tracking_list 2018-10-10 08:52:13 +02:00
dlmrecovery.c ocfs2/dlm: don't handle migrate lockres if already in shutdown 2018-05-30 07:49:08 +02:00
dlmthread.c ocfs2: add uuid to ocfs2 thread name for problem analysis 2015-11-05 19:34:48 -08:00
dlmunlock.c ocfs2: fix deadlock when two nodes are converting same lock from PR to EX and idletimeout closes conn 2014-06-23 16:47:45 -07:00
Makefile ocfs2: remove versioning information 2014-01-21 16:19:41 -08:00