NeilBrown b2d2c4cead Fix problem with waiting while holding rcu read lock in md/bitmap.c ... A recent patch to protect the rdev list with rcu locking leaves us with a problem because we can sleep on memalloc while holding the rcu lock. The rcu lock is only needed while walking the linked list as uninteresting devices (failed or spares) can be removed at any time. So only take the rcu lock while actually walking the linked list. Take a refcount on the rdev during the time when we drop the lock and do the memalloc to start IO. When we return to the locked code, all the interesting devices on the list will not have moved, so we can simply use list_for_each_continue_rcu to pick up where we left off. Signed-off-by: NeilBrown <neilb@suse.de>		2008-09-01 12:48:13 +10:00
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raid6test
.gitignore
bitmap.c	Fix problem with waiting while holding rcu read lock in md/bitmap.c	2008-09-01 12:48:13 +10:00
dm-bio-list.h
dm-bio-record.h
dm-crypt.c
dm-delay.c
dm-exception-store.c
dm-io.c
dm-ioctl.c
dm-kcopyd.c
dm-linear.c
dm-log.c
dm-mpath.c
dm-mpath.h
dm-path-selector.c
dm-path-selector.h
dm-raid1.c
dm-round-robin.c
dm-snap.c
dm-snap.h
dm-stripe.c
dm-table.c	[PATCH] switch mtd and dm-table to lookup_bdev()	2008-08-01 11:25:31 -04:00
dm-target.c
dm-uevent.c
dm-uevent.h
dm-zero.c
dm.c
dm.h
faulty.c
Kconfig
linear.c
Makefile
md.c	Remove invalidate_partition call from do_md_stop.	2008-09-01 12:32:52 +10:00
mktables.c
multipath.c
raid0.c
raid1.c
raid5.c	Don't let a blocked_rdev interfere with read request in raid5/6	2008-08-05 15:56:32 +10:00
raid6.h
raid6algos.c
raid6altivec.uc
raid6int.uc
raid6mmx.c
raid6recov.c
raid6sse1.c
raid6sse2.c
raid6x86.h
raid10.c	Allow raid10 resync to happening in larger chunks.	2008-08-05 15:56:32 +10:00
unroll.pl