Lars Ellenberg 2312f0b3c5 drbd: fix potential deadlock during "restart" of conflicting writes ... w_restart_write(), run from worker context, calls __drbd_make_request() and further drbd_al_begin_io(, delegate=true), which then potentially deadlocks. The previous patch moved a BUG_ON to expose such call paths, which would now be triggered. Also, if we call __drbd_make_request() from resource worker context, like w_restart_write() did, and that should block for whatever reason (!drbd_state_is_stable(), resource suspended, ...), we potentially deadlock the whole resource, as the worker is needed for state changes and other things. Create a dedicated retry workqueue for this instead. Also make sure that inc_ap_bio()/dec_ap_bio() are properly paired, even if do_retry() needs to retry itself, in case __drbd_make_request() returns != 0. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>		2012-11-08 16:58:21 +01:00
..
aoe	drivers/block/aoe/Makefile: replace the use of <module>-objs with <module>-y	2011-01-19 08:25:02 -07:00
drbd	drbd: fix potential deadlock during "restart" of conflicting writes	2012-11-08 16:58:21 +01:00
paride	block: fix mismerge of the DISK_EVENT_MEDIA_CHANGE removal	2011-06-02 05:29:19 +09:00
xen-blkback	Merge branch 'for-3.1/drivers' of git://git.kernel.dk/linux-block	2011-07-25 10:38:18 -07:00
amiflop.c	block: unexport DISK_EVENT_MEDIA_CHANGE for legacy/fringe drivers	2011-04-21 21:33:05 +02:00
ataflop.c	block: unexport DISK_EVENT_MEDIA_CHANGE for legacy/fringe drivers	2011-04-21 21:33:05 +02:00
brd.c	brd: export module parameters	2011-05-26 21:06:50 +02:00
cciss_cmd.h	cciss: use new doorbell-bit-5 reset method	2011-05-06 08:23:55 -06:00
cciss_scsi.c	atomic: use <linux/atomic.h>	2011-07-26 16:49:47 -07:00
cciss_scsi.h	cciss: add cciss_tape_cmds module paramter	2011-05-06 08:23:59 -06:00
cciss.c	cciss: add transport mode attribute to sys	2011-08-08 11:40:17 +02:00
cciss.h	cciss: Adds simple mode functionality	2011-08-08 11:40:15 +02:00
cpqarray.c	block: remove per-queue plugging	2011-03-10 08:52:07 +01:00
cpqarray.h
cryptoloop.c
DAC960.c	block: unexport DISK_EVENT_MEDIA_CHANGE for legacy/fringe drivers	2011-04-21 21:33:05 +02:00
DAC960.h
floppy.c	Merge branch 'idle-release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-idle-2.6	2011-05-29 11:18:09 -07:00
hd.c	i8253: Create linux/i8253.h and use it in all 8253 related files	2011-06-09 15:01:37 +02:00
ida_cmd.h
ida_ioctl.h
Kconfig	xen/blkback: Flesh out the description in the Kconfig.	2011-05-12 17:55:40 -04:00
loop.c	loop: always allow userspace partitions and optionally support automatic scanning	2011-08-23 20:12:04 +02:00
Makefile	xen/blkback: Move it from drivers/xen to drivers/block	2011-04-18 14:30:26 -04:00
mg_disk.c	block: switch s390 tape_block and mg_disk to elevator_change()	2010-08-23 14:02:44 +02:00
nbd.c	nbd-replace-some-printk-with-dev_warn-and-dev_info-checkpatch-fixes	2011-08-19 14:48:28 +02:00
osdblk.c	block: remove spurious uses of REQ_HARDBARRIER	2010-09-10 12:35:36 +02:00
pktcdvd.c	kill useless checks for sb->s_op == NULL	2011-07-20 01:44:21 -04:00
ps3disk.c	Merge branch 'for-2.6.37/barrier' of git://git.kernel.dk/linux-2.6-block	2010-10-22 17:07:18 -07:00
ps3vram.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
rbd_types.h	rbd: introduce rados block device (rbd), based on libceph	2010-10-20 15:38:13 -07:00
rbd.c	rbd: set blk_queue request sizes to object size	2011-07-26 11:29:35 -07:00
smart1,2.h	fix typos 'comamnd' -> 'command' in comments	2011-02-02 11:31:21 +01:00
sunvdc.c	block: Consolidate phys_segment and hw_segment limits	2010-02-26 13:58:08 +01:00
swim3.c	block: unexport DISK_EVENT_MEDIA_CHANGE for legacy/fringe drivers	2011-04-21 21:33:05 +02:00
swim_asm.S	m68k: mac - Add SWIM floppy support	2009-03-26 21:15:27 +01:00
swim.c	block: unexport DISK_EVENT_MEDIA_CHANGE for legacy/fringe drivers	2011-04-21 21:33:05 +02:00
sx8.c	block: Consolidate phys_segment and hw_segment limits	2010-02-26 13:58:08 +01:00
ub.c	block: unexport DISK_EVENT_MEDIA_CHANGE for legacy/fringe drivers	2011-04-21 21:33:05 +02:00
umem.c	Merge branch 'for-2.6.39/stack-plug' into for-2.6.39/core	2011-03-10 08:58:35 +01:00
umem.h
viodasd.c	Fix common misspellings	2011-03-31 11:26:23 -03:00
virtio_blk.c	drivers, block: virtio_blk: Replace cryptic number with the macro	2011-05-30 11:14:13 +09:30
xd.c	block: autoconvert trivial BKL users to private mutex	2010-10-05 15:01:10 +02:00
xd.h	[PATCH] switch xd	2008-10-21 07:48:11 -04:00
xen-blkfront.c	xen-blkfront: Introduce BLKIF_OP_FLUSH_DISKCACHE support.	2011-05-12 08:56:03 -04:00
xsysace.c	dt: remove extra xsysace platform_driver registration	2011-07-14 05:33:52 -06:00
z2ram.c	drivers/block/z2ram.c: correct printing of sector_t	2010-10-28 06:15:26 -06:00