Ronny Hegewald bae818ee15 rbd: require stable pages if message data CRCs are enabled ... rbd requires stable pages, as it performs a crc of the page data before they are send to the OSDs. But since kernel 3.9 (patch 1d1d1a7672 "mm: only enforce stable page writes if the backing device requires it") it is not assumed anymore that block devices require stable pages. This patch sets the necessary flag to get stable pages back for rbd. In a ceph installation that provides multiple ext4 formatted rbd devices "bad crc" messages appeared regularly (ca 1 message every 1-2 minutes on every OSD that provided the data for the rbd) in the OSD-logs before this patch. After this patch this messages are pretty much gone (only ca 1-2 / month / OSD). Cc: stable@vger.kernel.org # 3.9+, needs backporting Signed-off-by: Ronny Hegewald <Ronny.Hegewald@online.de> [idryomov@gmail.com: require stable pages only in crc case, changelog] Signed-off-by: Ilya Dryomov <idryomov@gmail.com>		2015-10-30 19:25:02 +01:00
..
aoe	Revert "block: remove artifical max_hw_sectors cap"	2015-08-18 13:21:13 -07:00
drbd	block: kill merge_bvec_fn() completely	2015-08-13 12:31:57 -06:00
mtip32xx	mtip32x: fix regression introduced by blk-mq per-hctx flush	2015-08-25 14:35:51 -06:00
paride
rsxx	block: make generic_make_request handle arbitrarily sized bios	2015-08-13 12:31:33 -06:00
xen-blkback	Merge branch 'stable/for-jens-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen into for-linus	2015-09-23 10:59:44 -06:00
zram	zram: fix possible use after free in zcomp_create()	2015-09-17 21:16:07 -07:00
amiflop.c
ataflop.c
brd.c	libnvdimm for 4.3:	2015-09-08 14:35:59 -07:00
cciss_cmd.h
cciss_scsi.c
cciss_scsi.h
cciss.c
cciss.h
cpqarray.c
cpqarray.h
cryptoloop.c
DAC960.c
DAC960.h
floppy.c	block: add a bi_error field to struct bio	2015-07-29 08:55:15 -06:00
hd.c
ida_cmd.h
ida_ioctl.h
Kconfig
loop.c	blk-mq: fix racy updates of rq->errors	2015-10-01 10:10:55 +02:00
loop.h
Makefile
mg_disk.c
nbd.c	nbd: Add locking for tasks	2015-10-08 14:21:24 -06:00
null_blk.c	blk-mq: fix racy updates of rq->errors	2015-10-01 10:10:55 +02:00
nvme-core.c	NVMe: Fix memory leak on retried commands	2015-10-15 13:38:48 -06:00
nvme-scsi.c
osdblk.c
pktcdvd.c	block: kill merge_bvec_fn() completely	2015-08-13 12:31:57 -06:00
ps3disk.c
ps3vram.c	block: make generic_make_request handle arbitrarily sized bios	2015-08-13 12:31:33 -06:00
rbd_types.h
rbd.c	rbd: require stable pages if message data CRCs are enabled	2015-10-30 19:25:02 +01:00
skd_main.c
skd_s1120.h
smart1,2.h
sunvdc.c
swim3.c
swim_asm.S
swim.c
sx8.c
umem.c	block: make generic_make_request handle arbitrarily sized bios	2015-08-13 12:31:33 -06:00
umem.h
virtio_blk.c	blk-mq: fix racy updates of rq->errors	2015-10-01 10:10:55 +02:00
xen-blkfront.c	Merge branch 'stable/for-jens-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen into for-linus	2015-10-07 13:50:17 -06:00
xsysace.c
z2ram.c