Lars Ellenberg 7dc1d67f7c drbd: skip spurious wait_event in drbd_al_begin_io ... Activity log transaction writes are serialized on a bit lock. If several CPUs race to write an AL transaction, those that did not get the lock the first time may continue as soon as there are no more pending transactions. The do not need to all grab the lock in turn, just to realize that the AL is clean already, and they have nothing to do. This also closes a potential deadlock with drbd_adm_disk_opts. Once it got the AL bit lock, it knows there are no pending transactions, the AL is clean, and it should be safe to wait for all element references to drop to zero. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>		2012-11-08 16:55:49 +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: skip spurious wait_event in drbd_al_begin_io	2012-11-08 16:55:49 +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
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
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