linux/drivers/md
Andre Noll f1cd14ae52 md: linear: Fix a division by zero bug for very small arrays.
We currently oops with a divide error on starting a linear software
raid array consisting of at least two very small (< 500K) devices.

The bug is caused by the calculation of the hash table size which
tries to compute sector_div(sz, base) with "base" being zero due to
the small size of the component devices of the array.

Fix this by requiring the hash spacing to be at least one which
implies that also "base" is non-zero.

This bug has existed since about 2.6.14.

Cc: stable@kernel.org
Signed-off-by: Andre Noll <maan@systemlinux.org>
Signed-off-by: NeilBrown <neilb@suse.de>
2008-11-06 19:41:24 +11:00
..
raid6test
.gitignore
bitmap.c
dm-bio-list.h
dm-bio-record.h
dm-crypt.c dm crypt: remove waitqueue 2008-10-21 17:45:03 +01:00
dm-delay.c dm: remove dm header from targets 2008-10-21 17:44:59 +01:00
dm-exception-store.c dm: remove dm header from targets 2008-10-21 17:44:59 +01:00
dm-io.c dm: remove dm header from targets 2008-10-21 17:44:59 +01:00
dm-ioctl.c [PATCH] introduce fmode_t, do annotations 2008-10-21 07:47:06 -04:00
dm-kcopyd.c dm: remove dm header from targets 2008-10-21 17:44:59 +01:00
dm-linear.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/viro/bdev 2008-10-23 10:23:07 -07:00
dm-log.c dm: remove dm header from targets 2008-10-21 17:44:59 +01:00
dm-mpath.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/viro/bdev 2008-10-23 10:23:07 -07:00
dm-mpath.h
dm-path-selector.c dm: remove dm header from targets 2008-10-21 17:44:59 +01:00
dm-path-selector.h
dm-raid1.c dm raid1: fix do_failures 2008-10-30 13:33:07 +00:00
dm-region-hash.c dm raid1: separate region_hash interface part1 2008-10-21 17:45:06 +01:00
dm-round-robin.c dm: remove dm header from targets 2008-10-21 17:44:59 +01:00
dm-snap.c dm snapshot: wait for chunks in destructor 2008-10-30 13:33:16 +00:00
dm-snap.h dm snapshot: wait for chunks in destructor 2008-10-30 13:33:16 +00:00
dm-stripe.c dm: remove dm header from targets 2008-10-21 17:44:59 +01:00
dm-table.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/viro/bdev 2008-10-23 10:23:07 -07:00
dm-target.c
dm-uevent.c
dm-uevent.h
dm-zero.c dm: remove dm header from targets 2008-10-21 17:44:59 +01:00
dm.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/viro/bdev 2008-10-23 10:23:07 -07:00
dm.h dm: publish array_too_big 2008-10-21 17:44:57 +01:00
faulty.c
Kconfig
linear.c md: linear: Fix a division by zero bug for very small arrays. 2008-11-06 19:41:24 +11:00
Makefile dm raid1: separate region_hash interface part1 2008-10-21 17:45:06 +01:00
md.c md: revert the recent addition of a call to the BLKRRPART ioctl. 2008-11-06 17:28:01 +11:00
mktables.c
multipath.c
raid0.c
raid1.c
raid5.c
raid6.h
raid6algos.c
raid6altivec.uc
raid6int.uc
raid6mmx.c
raid6recov.c
raid6sse1.c
raid6sse2.c
raid6x86.h
raid10.c md: fix bug in raid10 recovery. 2008-11-06 17:28:20 +11:00
unroll.pl