Ilya Dryomov 6d69bb536b rbd: prevent kernel stack blow up on rbd map ... Mapping an image with a long parent chain (e.g. image foo, whose parent is bar, whose parent is baz, etc) currently leads to a kernel stack overflow, due to the following recursion in the reply path: rbd_osd_req_callback() rbd_obj_request_complete() rbd_img_obj_callback() rbd_img_parent_read_callback() rbd_obj_request_complete() ... Limit the parent chain to 16 images, which is ~5K worth of stack. When the above recursion is eliminated, this limit can be lifted. Fixes: http://tracker.ceph.com/issues/12538 Cc: stable@vger.kernel.org # 3.10+, needs backporting for < 4.2 Signed-off-by: Ilya Dryomov <idryomov@gmail.com> Reviewed-by: Josh Durgin <jdurgin@redhat.com>		2015-10-23 18:37:24 +02:00
..
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	Char/Misc driver patches for 4.2-rc1	2015-06-26 14:51:15 -07:00
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	block: drop owner assignment from platform_drivers	2014-10-20 16:20:18 +02:00
ataflop.c	Merge branch 'for-3.16/core' of git://git.kernel.dk/linux-block into next	2014-06-02 09:29:34 -07:00
brd.c	libnvdimm for 4.3:	2015-09-08 14:35:59 -07:00
cciss.c	cciss: correct the non-resettable board list	2015-05-31 11:14:34 -07:00
cciss.h
cciss_cmd.h
cciss_scsi.c	scsi: Do not set cmd_per_lun to 1 in the host template	2015-05-31 18:06:28 -07:00
cciss_scsi.h
cpqarray.c	genirq: Remove the deprecated 'IRQF_DISABLED' request_irq() flag entirely	2015-03-05 20:53:06 +01:00
cpqarray.h
cryptoloop.c
DAC960.c	block: use pci_zalloc_consistent	2014-08-08 15:57:28 -07:00
DAC960.h
floppy.c	block: add a bi_error field to struct bio	2015-07-29 08:55:15 -06:00
hd.c	block: hd: remove deprecated IRQF_DISABLED	2014-10-01 08:16:07 -06:00
ida_cmd.h
ida_ioctl.h
Kconfig	libnvdimm, pmem: move pmem to drivers/nvdimm/	2015-06-24 21:24:10 -04:00
loop.c	blk-mq: fix racy updates of rq->errors	2015-10-01 10:10:55 +02:00
loop.h	block: loop: don't hold lo_ctl_mutex in lo_open	2015-05-20 09:06:09 -06:00
Makefile	libnvdimm, pmem: move pmem to drivers/nvdimm/	2015-06-24 21:24:10 -04:00
mg_disk.c	block: drop owner assignment from platform_drivers	2014-10-20 16:20:18 +02:00
nbd.c	nbd: flags is a u32 variable	2015-08-17 08:23:01 -06:00
null_blk.c	blk-mq: fix racy updates of rq->errors	2015-10-01 10:10:55 +02:00
nvme-core.c	blk-mq: fix racy updates of rq->errors	2015-10-01 10:10:55 +02:00
nvme-scsi.c	Merge branch 'for-4.2/drivers' of git://git.kernel.dk/linux-block	2015-06-25 15:12:50 -07:00
osdblk.c	block: support different tag allocation policy	2015-01-23 14:15:46 -07:00
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.c	rbd: prevent kernel stack blow up on rbd map	2015-10-23 18:37:24 +02:00
rbd_types.h
skd_main.c	block: have drivers use blk_queue_max_discard_sectors()	2015-07-17 08:41:53 -06:00
skd_s1120.h
smart1,2.h
sunvdc.c	sunvdc: reconnect ldc after vds service domain restarts	2014-12-11 18:52:45 -08:00
swim.c	block: drop owner assignment from platform_drivers	2014-10-20 16:20:18 +02:00
swim3.c	powerpc: Move Power Macintosh drivers to generic byteswappers	2015-03-23 14:29:40 +11:00
swim_asm.S
sx8.c	block: rename REQ_TYPE_SPECIAL to REQ_TYPE_DRV_PRIV	2015-05-05 13:40:03 -06:00
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	blk-mq: fix racy updates of rq->errors	2015-10-01 10:10:55 +02:00
xsysace.c	block: systemace: Remove .owner field for driver	2014-08-21 20:37:54 -05:00
z2ram.c	block: remove struct request buffer member	2014-04-15 14:03:02 -06:00