linux/fs/ocfs2/dlm
Ashish Samant cbe355f57c ocfs2: fix locking for res->tracking and dlm->tracking_list
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>
2018-10-05 16:32:05 -07:00
..
dlmapi.h ocfs2/trivial: Remove trailing whitespaces 2010-01-25 19:20:51 -08:00
dlmast.c ocfs2/dlm: clean up unused stack variable in dlm_do_local_ast() 2018-04-05 21:36:22 -07:00
dlmcommon.h ocfs2/dlm: wait for dlm recovery done when migrating all lock resources 2018-04-05 21:36:22 -07:00
dlmconvert.c ocfs2/dlm: fix race between convert and migration 2016-09-19 15:36:16 -07:00
dlmconvert.h
dlmdebug.c locking/atomic, kref: Add kref_read() 2017-01-14 11:37:18 +01:00
dlmdebug.h ocfs2/dlm: fix memory leak of dlm_debug_ctxt 2016-07-26 16:19:19 -07:00
dlmdomain.c treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00
dlmdomain.h ocfs2/dlm: don't handle migrate lockres if already in shutdown 2018-04-05 21:36:22 -07:00
dlmlock.c ocfs2: remove unnecessary null pointer check before kmem_cache_destroy() 2018-04-05 21:36:22 -07:00
dlmmaster.c ocfs2: fix locking for res->tracking and dlm->tracking_list 2018-10-05 16:32:05 -07:00
dlmrecovery.c ocfs2/dlm: clean up unused variable in dlm_process_recovery_data 2018-04-05 21:36:22 -07:00
dlmthread.c ocfs2/dlm: continue to purge recovery lockres when recovery master goes down 2016-08-02 17:31:41 -04:00
dlmunlock.c locking/atomic, kref: Add kref_read() 2017-01-14 11:37:18 +01:00
Makefile ocfs2: remove versioning information 2014-01-21 16:19:41 -08:00