Jonathan Brassow e3620a3ad5 MD RAID5: Avoid accessing gendisk or queue structs when not available ... MD RAID5: Fix kernel oops when RAID4/5/6 is used via device-mapper Commit a9add5d (v3.8-rc1) added blktrace calls to the RAID4/5/6 driver. However, when device-mapper is used to create RAID4/5/6 arrays, the mddev->gendisk and mddev->queue fields are not setup. Therefore, calling things like trace_block_bio_remap will cause a kernel oops. This patch conditionalizes those calls on whether the proper fields exist to make the calls. (Device-mapper will call trace_block_bio_remap on its own.) This patch is suitable for the 3.8.y stable kernel. Cc: stable@vger.kernel.org (v3.8+) Signed-off-by: Jonathan Brassow <jbrassow@redhat.com> Signed-off-by: NeilBrown <neilb@suse.de>		2013-03-20 13:16:57 +11:00
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persistent-data	Miscellaneous device-mapper fixes, cleanups and performance improvements.	2012-12-21 17:08:06 -08:00
bitmap.c
bitmap.h
dm-bio-prison.c	dm thin: replace dm_cell_release_singleton with cell_defer_except	2012-12-21 20:23:31 +00:00
dm-bio-prison.h	dm thin: replace dm_cell_release_singleton with cell_defer_except	2012-12-21 20:23:31 +00:00
dm-bio-record.h
dm-bufio.c	dm: use ACCESS_ONCE for sysfs values	2012-10-12 16:59:46 +01:00
dm-bufio.h
dm-crypt.c	dm: remove map_info	2012-12-21 20:23:41 +00:00
dm-delay.c	dm: remove map_info	2012-12-21 20:23:41 +00:00
dm-exception-store.c
dm-exception-store.h
dm-flakey.c	dm: remove map_info	2012-12-21 20:23:41 +00:00
dm-io.c	dm kcopyd: add WRITE SAME support to dm_kcopyd_zero	2012-12-21 20:23:37 +00:00
dm-ioctl.c	dm ioctl: use kmalloc if possible	2012-12-21 20:23:36 +00:00
dm-kcopyd.c	dm kcopyd: add WRITE SAME support to dm_kcopyd_zero	2012-12-21 20:23:37 +00:00
dm-linear.c	dm: remove map_info	2012-12-21 20:23:41 +00:00
dm-log-userspace-base.c
dm-log-userspace-transfer.c
dm-log-userspace-transfer.h
dm-log.c
dm-mpath.c	dm mpath: fix check for null mpio in end_io fn	2012-10-12 16:59:42 +01:00
dm-mpath.h
dm-path-selector.c
dm-path-selector.h
dm-queue-length.c
dm-raid1.c	dm: remove map_info	2012-12-21 20:23:41 +00:00
dm-raid.c	DM RAID: Add support for MD's RAID10 "far" and "offset" algorithms	2013-02-26 11:55:36 +11:00
dm-region-hash.c
dm-round-robin.c
dm-service-time.c
dm-snap-persistent.c
dm-snap-transient.c
dm-snap.c	dm: remove map_info	2012-12-21 20:23:41 +00:00
dm-stripe.c	dm stripe: add WRITE SAME support	2012-12-21 20:23:41 +00:00
dm-sysfs.c
dm-table.c	dm: introduce per_bio_data	2012-12-21 20:23:38 +00:00
dm-target.c	dm: remove map_info	2012-12-21 20:23:41 +00:00
dm-thin-metadata.c	dm persistent data: fix nested btree deletion	2012-12-21 20:23:32 +00:00
dm-thin-metadata.h
dm-thin.c	dm thin: fix queue limits stacking	2013-01-31 14:11:14 +00:00
dm-uevent.c
dm-uevent.h
dm-verity.c	dm: remove map_info	2012-12-21 20:23:41 +00:00
dm-zero.c	dm: remove map_info	2012-12-21 20:23:41 +00:00
dm.c	dm: fix write same requests counting	2013-01-31 14:23:36 +00:00
dm.h	dm: introduce per_bio_data	2012-12-21 20:23:38 +00:00
faulty.c	md faulty: use disk_stack_limits()	2012-10-22 10:44:55 +11:00
Kconfig	md: remove CONFIG_MULTICORE_RAID456	2013-02-28 09:08:34 +11:00
linear.c
linear.h
Makefile	dm thin: move bio_prison code to separate module	2012-10-12 21:02:13 +01:00
md.c	md: expedite metadata update when switching read-auto -> active	2013-02-28 11:59:03 +11:00
md.h	md update for 3.8	2012-12-18 09:32:44 -08:00
multipath.c
multipath.h
raid0.c	md/raid0: improve error message when converting RAID4-with-spares to RAID0	2013-02-26 11:58:44 +11:00
raid0.h
raid1.c	md/raid1,raid10: fix deadlock with freeze_array()	2013-02-26 11:58:50 +11:00
raid1.h
raid5.c	MD RAID5: Avoid accessing gendisk or queue structs when not available	2013-03-20 13:16:57 +11:00
raid5.h
raid10.c	md/raid1,raid10: fix deadlock with freeze_array()	2013-02-26 11:58:50 +11:00
raid10.h	MD RAID10: Improve redundancy for 'far' and 'offset' algorithms (part 1)	2013-02-26 11:55:30 +11:00