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Jens Axboe 581c1b1439 [PATCH] noop-iosched: avoid corrupted request merging 
Tejun Heo notes:

   "I'm currently debugging this.  The problem is that we are using the
    generic dispatch queue directly in the noop sched and merging is NOT
    allowed on dispatch queues but generic handling of last_merge tries
    to merge requests.  I'm still trying to verify this, so I'll be back
    with results soon."

In the meantime, disable merging for noop by setting REQ_NOMERGE in
elevator_noop_add_request().

Eventually, we should add a noop_list and do the dispatching like in the
other io schedulers.  Merging is still beneficial for noop (and it has
always done it).

Signed-off-by: Jens Axboe <axboe@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-31 07:46:28 -08:00
..
aoe [PATCH] Driver Core: fix up all callers of class_device_create() 2005-10-28 09:52:52 -07:00
paride [PATCH] fix missing includes 2005-10-30 17:37:32 -08:00
acsi_slm.c [PATCH] timer initialization cleanup: DEFINE_TIMER 2005-09-09 14:03:48 -07:00
acsi.c [PATCH] timer initialization cleanup: DEFINE_TIMER 2005-09-09 14:03:48 -07:00
amiflop.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
as-iosched.c [PATCH] cfq-iosched: move tasklist walk to elevator.c 2005-10-30 17:37:17 -08:00
ataflop.c [PATCH] timer initialization cleanup: DEFINE_TIMER 2005-09-09 14:03:48 -07:00
cciss_cmd.h [PATCH] cciss: direct lookup for command completions 2005-09-13 08:22:30 -07:00
cciss_scsi.c [PATCH] fix missing includes 2005-10-30 17:37:32 -08:00
cciss_scsi.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
cciss.c [PATCH] cciss: busy_initializing bug fix 2005-09-21 10:11:54 -07:00
cciss.h [PATCH] cciss: direct lookup for command completions 2005-09-13 08:22:30 -07:00
cfq-iosched.c [PATCH] Fix on-the-fly switch from cfq i/o scheduler 2005-10-31 07:41:28 -08:00
cpqarray.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
cpqarray.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
cryptoloop.c [CRYPTO]: Use CRYPTO_TFM_REQ_MAY_SLEEP where appropriate 2005-09-01 17:43:25 -07:00
DAC960.c [PATCH] DAC960: add support for Mylex AcceleRAID 4/5/600 2005-05-05 16:36:43 -07:00
DAC960.h [PATCH] DAC960: add support for Mylex AcceleRAID 4/5/600 2005-05-05 16:36:43 -07:00
deadline-iosched.c Merge branch 'generic-dispatch' of git://brick.kernel.dk/data/git/linux-2.6-block 2005-10-28 08:53:49 -07:00
elevator.c [PATCH] block cleanups: Fix iosched module refcount leak 2005-10-30 17:37:20 -08:00
floppy.c Create platform_device.h to contain all the platform device details. 2005-10-29 19:07:23 +01:00
genhd.c [PATCH] add sysfs attr to re-emit device hotplug event 2005-10-28 09:52:51 -07:00
ida_cmd.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ida_ioctl.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ioctl.c [PATCH] block: add unlocked_ioctl support for block devices 2005-06-23 09:45:32 -07:00
Kconfig [PATCH] Kconfig fix (BLK_DEV_FD dependencies) 2005-09-07 17:17:12 -07:00
Kconfig.iosched [PATCH] block cleanups: Add kconfig default iosched submenu 2005-10-30 17:37:20 -08:00
ll_rw_blk.c Merge branch 'elevator-switch' of git://brick.kernel.dk/data/git/linux-2.6-block 2005-10-28 08:56:34 -07:00
loop.c [PATCH] gfp_t: remaining bits of drivers/* 2005-10-28 08:16:51 -07:00
Makefile Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
nbd.c [PATCH] nbd: Don't create all MAX_NBD devices by default all the time 2005-05-01 08:59:07 -07:00
noop-iosched.c [PATCH] noop-iosched: avoid corrupted request merging 2005-10-31 07:46:28 -08:00
pktcdvd.c [PATCH] gfp flags annotations - part 1 2005-10-08 15:00:57 -07:00
ps2esdi.c [PATCH] timer initialization cleanup: DEFINE_TIMER 2005-09-09 14:03:48 -07:00
rd.c [PATCH] gfp_t: remaining bits of drivers/* 2005-10-28 08:16:51 -07:00
scsi_ioctl.c [PATCH] scsi_ioctl: only warn for rejected commands 2005-10-08 15:00:57 -07:00
smart1,2.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
swim3.c [PATCH] drivers/block: fix-up schedule_timeout() usage 2005-09-10 10:06:38 -07:00
swim_iop.c [PATCH] drivers/block: fix-up schedule_timeout() usage 2005-09-10 10:06:38 -07:00
sx8.c drivers/block/sx8: kill unused variable 2005-10-22 01:33:18 -04:00
ub.c [PATCH] ub: suppress gcc warnings for pointer casts 2005-10-28 16:47:38 -07:00
umem.c [PATCH] janitor: block/umem: replace PRINTK with pr_debug 2005-09-10 10:06:33 -07:00
viodasd.c powerpc: set the driver.owner field for all vio drivers 2005-10-24 16:59:13 +10:00
xd.c [PATCH] drivers/block: fix-up schedule_timeout() usage 2005-09-10 10:06:38 -07:00
xd.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
z2ram.c [PATCH] vfree and kfree cleanup in drivers/ 2005-09-10 10:06:30 -07:00