Repository files (latest commit first)

Filename	Latest commit message	Latest commit date
Jun'ichi Nomura bfa152fa5e [PATCH] dm-multipath: fix stall on noflush suspend/resume ... Allow noflush suspend/resume of device-mapper device only for the case where the device size is unchanged. Otherwise, dm-multipath devices can stall when resumed if noflush was used when suspending them, all paths have failed and queue_if_no_path is set. Explanation: 1. Something is doing fsync() on the block dev, holding inode->i_sem 2. The fsync write is blocked by all-paths-down and queue_if_no_path 3. Someone requests to suspend the dm device with noflush. Pending writes are left in queue. 4. In the middle of dm_resume(), __bind() tries to get inode->i_sem to do __set_size() and waits forever. 'noflush suspend' is a new device-mapper feature introduced in early 2.6.20. So I hope the fix being included before 2.6.20 is released. Example of reproducer: 1. Create a multipath device by dmsetup 2. Fail all paths during mkfs 3. Do dmsetup suspend --noflush and load new map with healthy paths 4. Do dmsetup resume Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com> Acked-by: Alasdair G Kergon <agk@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2007-01-26 13:51:00 -08:00
..
raid6test
.gitignore
bitmap.c	[PATCH] md: avoid reading past the end of a bitmap file	2007-01-26 13:50:59 -08:00
dm-bio-list.h	[PATCH] dm: suspend: add noflush pushback	2006-12-08 08:29:09 -08:00
dm-bio-record.h
dm-crypt.c	[PATCH] dm: map and endio symbolic return codes	2006-12-08 08:29:09 -08:00
dm-emc.c	[PATCH] struct path: rename DM's struct path	2006-12-08 08:28:40 -08:00
dm-exception-store.c
dm-hw-handler.c
dm-hw-handler.h	[PATCH] struct path: rename DM's struct path	2006-12-08 08:28:40 -08:00
dm-io.c	[PATCH] dm io: fix bi_max_vecs	2006-12-08 08:29:08 -08:00
dm-io.h
dm-ioctl.c	[PATCH] dm: ioctl: add noflush suspend	2006-12-08 08:29:09 -08:00
dm-linear.c	[PATCH] dm: map and endio symbolic return codes	2006-12-08 08:29:09 -08:00
dm-log.c	[PATCH] dm: raid1: reset sync_search on resume	2006-12-08 08:29:09 -08:00
dm-log.h	[PATCH] dm: log: rename complete_resync_work	2006-12-08 08:29:09 -08:00
dm-mpath.c	[PATCH] dm: mpath: use noflush suspending	2006-12-08 08:29:09 -08:00
dm-mpath.h	[PATCH] struct path: rename DM's struct path	2006-12-08 08:28:40 -08:00
dm-path-selector.c
dm-path-selector.h	[PATCH] struct path: rename DM's struct path	2006-12-08 08:28:40 -08:00
dm-raid1.c	[PATCH] dm: log: rename complete_resync_work	2006-12-08 08:29:09 -08:00
dm-round-robin.c	[PATCH] struct path: rename DM's struct path	2006-12-08 08:28:40 -08:00
dm-snap.c	[PATCH] make drivers/md/dm-snap.c:ksnapd static	2006-12-08 08:29:09 -08:00
dm-snap.h
dm-stripe.c	[PATCH] dm: map and endio symbolic return codes	2006-12-08 08:29:09 -08:00
dm-table.c
dm-target.c
dm-zero.c	[PATCH] dm: map and endio symbolic return codes	2006-12-08 08:29:09 -08:00
dm.c	[PATCH] dm-multipath: fix stall on noflush suspend/resume	2007-01-26 13:51:00 -08:00
dm.h	[PATCH] dm: suspend: add noflush pushback	2006-12-08 08:29:09 -08:00
faulty.c	[PATCH] md: Don't assume that READ==0 and WRITE==1 - use the names explicitly	2006-12-13 09:05:48 -08:00
Kconfig	[CRYPTO] dm-crypt: Select CRYPTO_CBC	2006-12-10 10:18:57 -08:00
kcopyd.c
kcopyd.h
linear.c
Makefile
md.c	[PATCH] md: make sure the events count in an md array never returns to zero	2007-01-26 13:50:59 -08:00
mktables.c
multipath.c
raid0.c
raid1.c	[PATCH] md: make 'repair' actually work for raid1	2007-01-26 13:50:59 -08:00
raid5.c	[PATCH] md: Don't assume that READ==0 and WRITE==1 - use the names explicitly	2006-12-13 09:05:48 -08:00
raid6.h
raid6algos.c
raid6altivec.uc
raid6int.uc
raid6mmx.c
raid6recov.c
raid6sse1.c
raid6sse2.c
raid6x86.h
raid10.c	[PATCH] md: pass down BIO_RW_SYNC in raid{1,10}	2007-01-11 18:18:21 -08:00
unroll.pl
xor.c