Jeff Moyer 30e2bc08b2 Revert "block: remove artifical max_hw_sectors cap" ... This reverts commit 34b48db66e. That commit caused performance regressions for streaming I/O workloads on a number of different storage devices, from SATA disks to external RAID arrays. It also managed to trip up some buggy firmware in at least one drive, causing data corruption. The next patch will bump the default max_sectors_kb value to 1280, which will accommodate a 10-data-disk stripe write with chunk size 128k. In the testing I've done using iozone, fio, and aio-stress, a value of 1280 does not show a big performance difference from 512. This will hopefully still help the software RAID setup that Christoph saw the original performance gains with while still not regressing other storage configurations. Signed-off-by: Jeff Moyer <jmoyer@redhat.com> Signed-off-by: Jens Axboe <axboe@fb.com>		2015-08-18 13:21:13 -07:00
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acpi	Additional ACPICA material for v4.2-rc1	2015-07-02 17:11:28 -07:00
asm-generic	- Support for HS38 cores based on ARCv2 ISA	2015-07-01 09:24:26 -07:00
clocksource
crypto	crypto: rng - Do not free default RNG when it becomes unused	2015-06-22 15:49:18 +08:00
drm	drm: use kvfree() in drm_free_large()	2015-06-30 19:44:59 -07:00
dt-bindings	The changes to the common clock framework for 4.2 are dominated by new	2015-07-01 19:22:00 -07:00
keys
kvm
linux	Revert "block: remove artifical max_hw_sectors cap"	2015-08-18 13:21:13 -07:00
math-emu
media	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds	2015-07-01 19:09:11 -07:00
memory
misc
net	net: Kill sock->sk_protinfo	2015-06-28 16:55:44 -07:00
pcmcia
ras	tracing: add trace event for memory-failure	2015-06-24 17:49:43 -07:00
rdma	IB: Add rdma_cap_ib_switch helper and use where appropriate	2015-07-14 13:20:08 -04:00
rxrpc
scsi	IB/srp: Avoid using uninitialized variable	2015-07-14 13:20:09 -04:00
soc	Merge branch 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm	2015-06-26 12:20:00 -07:00
sound	ASoC: Further updates for v4.2	2015-06-22 11:32:41 +02:00
target	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending	2015-07-04 14:13:43 -07:00
trace	Merge branch 'for-linus-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs	2015-06-30 20:07:45 -07:00
uapi	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-07-13 11:18:25 -07:00
video	Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux	2015-06-26 13:18:51 -07:00
xen
Kbuild