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
..
acorn	[PATCH] I2C: Kill address ranges in non-sensors i2c chip drivers	2005-06-21 21:51:48 -07:00
acpi	[PATCH] suspend/resume SMP support	2005-06-25 16:24:32 -07:00
atm
base	[PATCH] generate hotplug events for cpu online	2005-06-25 16:24:31 -07:00
block	[PATCH] ll_rw_blk: prevent huge request allocations	2005-06-28 14:56:50 -07:00
bluetooth	[PATCH] pcmcia: id_table for dtl1_cs.c	2005-06-27 18:03:15 -07:00
cdrom	[PATCH] drivers/cdrom/cm206.c: cleanups	2005-06-25 16:25:07 -07:00
char	[PATCH] pcmcia: synclink_cs IRQ_INFO2_INFO is gone	2005-06-27 18:03:21 -07:00
cpufreq	[PATCH] sysfs: (rest) if show/store is missing return -EIO	2005-06-20 15:15:03 -07:00
crypto
dio	[PATCH] Driver Core: drivers/base - drivers/i2c/chips/adm1026.c: update device attribute callbacks	2005-06-20 15:15:32 -07:00
eisa	[PATCH] Driver Core: drivers/base - drivers/i2c/chips/adm1026.c: update device attribute callbacks	2005-06-20 15:15:32 -07:00
fc4	fc4/fc: fix warnings and errors related to recent SCSI EH updates	2005-06-19 21:47:56 -04:00
firmware	[PATCH] kfree cleanups for drivers/firmware/	2005-06-25 16:25:06 -07:00
i2c	[PATCH] I2C-MPC: Remove OCP device model support	2005-06-25 16:24:27 -07:00
ide	[PATCH] pcmcia: more IDs for ide_cs	2005-06-27 18:03:12 -07:00
ieee1394	[PATCH] ppc32: Remove CONFIG_PMAC_PBOOK	2005-06-27 15:11:43 -07:00
infiniband	[PATCH] IB: Fix pack/unpack when size_bits == 64	2005-06-27 15:11:47 -07:00
input	Commit the manual part of the input layer merge.	2005-06-27 17:49:45 -07:00
isdn	[PATCH] pcmcia: id_table for sedlbauer_cs.c	2005-06-27 18:03:16 -07:00
macintosh	[PATCH] ppc32: Remove CONFIG_PMAC_PBOOK	2005-06-27 15:11:43 -07:00
mca	[PATCH] unexport mca_find_device_by_slot	2005-06-25 16:24:56 -07:00
md	[PATCH] md: bio leak fix	2005-06-28 14:53:41 -07:00
media	[PATCH] fix silly config option.	2005-06-27 14:33:30 -07:00
message	[PATCH] tpm: device attribute fixes	2005-06-24 00:05:29 -07:00
misc	[PATCH] ibmasm driver: fix race in command refcount logic	2005-06-21 19:07:35 -07:00
mmc	[PATCH] Driver Core: drivers/i2c/chips/w83781d.c - drivers/s390/block/dcssblk.c: update device attribute callbacks	2005-06-20 15:15:34 -07:00
mtd	[PATCH] pcmcia: id_table for pcmciamtd.c	2005-06-27 18:03:13 -07:00
net	Merge /spare/repo/linux-2.6/	2005-06-28 00:46:22 -04:00
nubus
oprofile	[PATCH] oprofile: report anonymous region samples	2005-06-24 00:06:27 -07:00
parisc
parport	[PATCH] pcmcia: id_table for parport_cs.c	2005-06-27 18:03:13 -07:00
pci	[PATCH] PCI: fix show_modalias() function due to attribute change	2005-06-20 15:28:51 -07:00
pcmcia	[PATCH] ACPI-based PCI resources: PCMCIA bugfix, but resources missing in trees	2005-06-27 18:03:22 -07:00
pnp	[PATCH] Cleanup patch for process freezing	2005-06-25 17:10:13 -07:00
s390	[PATCH] s390: debug feature changes	2005-06-25 16:24:37 -07:00
sbus
scsi	Merge head 'upstream-20050628-1' of rsync://rsync.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev	2005-06-28 10:20:11 -07:00
serial	[PATCH] pcmcia: more IDs for TDK multifunction cards	2005-06-27 18:03:17 -07:00
sh	[PATCH] Driver Core: drivers/s390/net/qeth_sys.c - drivers/usb/gadget/pxa2xx_udc.c: update device attribute callbacks	2005-06-20 15:15:35 -07:00
sn	[PATCH] ioc4: PCI bus speed detection	2005-06-21 18:46:32 -07:00
tc
telephony	[PATCH] pcmcia: id_table for ixj_pcmcia.c	2005-06-27 18:03:16 -07:00
usb	[PATCH] pcmcia id_table for sl811.cs	2005-06-27 18:03:17 -07:00
video	[PATCH] ppc32: Remove CONFIG_PMAC_PBOOK	2005-06-27 15:11:43 -07:00
w1	[PATCH] Cleanup patch for process freezing	2005-06-25 17:10:13 -07:00
zorro	[PATCH] Driver Core: drivers/usb/input/aiptek.c - drivers/zorro/zorro-sysfs.c: update device attribute callbacks	2005-06-20 15:15:35 -07:00
Kconfig	[PATCH] ioc4: CONFIG split	2005-06-21 18:46:32 -07:00
Makefile	[PATCH] ioc4: CONFIG split	2005-06-21 18:46:32 -07:00