Jens Axboe 082cf69eb8 [PATCH] ll_rw_blk: prevent huge request allocations ... Currently we cap request allocations at q->nr_requests, but we allow a batching io context to allocate up to 32 more (default setting). This can flood the queue with request allocations, with only a few batching processes. The real fix would be to limit the number of batchers, but as that isn't currently tracked, I suggest we just cap the maximum number of allocated requests to eg 50% over the limit. This was observed in real life, users typically see this as vmstat bo numbers going off the wall with seconds of no queueing afterwards. Behaviour this bursty is not beneficial. Signed-off-by: Jens Axboe <axboe@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>		2005-06-28 14:56:50 -07:00
..
aoe	[PATCH] class: convert drivers/block/* to use the new class api instead of class_simple	2005-06-20 15:15:07 -07:00
paride	[PATCH] class: convert drivers/block/* to use the new class api instead of class_simple	2005-06-20 15:15:07 -07:00
acsi_slm.c
acsi.c
amiflop.c
as-iosched.c	[PATCH] Update cfq io scheduler to time sliced design	2005-06-27 14:33:29 -07:00
ataflop.c
cciss_cmd.h
cciss_scsi.c
cciss_scsi.h
cciss.c	[PATCH] cciss_ioctl() warning fix	2005-06-28 14:53:40 -07:00
cciss.h
cfq-iosched.c	[PATCH] cfq build fix	2005-06-27 20:31:02 -07:00
cpqarray.c
cpqarray.h
cryptoloop.c
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	[PATCH] Update cfq io scheduler to time sliced design	2005-06-27 14:33:29 -07:00
elevator.c	[PATCH] Update cfq io scheduler to time sliced design	2005-06-27 14:33:29 -07:00
floppy.c	[PATCH] remove do_sync parameter from __invalidate_device	2005-05-05 16:36:44 -07:00
genhd.c	[PATCH] add check to /proc/devices read routines	2005-06-23 09:45:19 -07:00
ida_cmd.h
ida_ioctl.h
ioctl.c	[PATCH] block: add unlocked_ioctl support for block devices	2005-06-23 09:45:32 -07:00
Kconfig	[PATCH] ISA DMA Kconfig fixes - part 3	2005-05-04 07:33:14 -07:00
Kconfig.iosched
ll_rw_blk.c	[PATCH] ll_rw_blk: prevent huge request allocations	2005-06-28 14:56:50 -07:00
loop.c	[PATCH] optimise loop driver a bit	2005-06-23 09:45:18 -07:00
Makefile
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: kill O(N) merge scan	2005-05-01 08:59:06 -07:00
pktcdvd.c	[PATCH] Cleanup patch for process freezing	2005-06-25 17:10:13 -07:00
ps2esdi.c
rd.c	[PATCH] drivers/block/rd.c: rd_size shouldn't be static	2005-05-06 16:58:18 -07:00
scsi_ioctl.c
smart1,2.h
swim3.c	[PATCH] ppc32: Remove CONFIG_PMAC_PBOOK	2005-06-27 15:11:43 -07:00
swim_iop.c
sx8.c	[PATCH] drivers/block/sx8.c: Use the DMA_{64, 32}BIT_MASK constants	2005-06-27 00:06:11 -04:00
ub.c	[PATCH] Driver Core: drivers/base - drivers/i2c/chips/adm1026.c: update device attribute callbacks	2005-06-20 15:15:32 -07:00
umem.c
viodasd.c
xd.c
xd.h
z2ram.c