Jens Axboe ac3dd5bd12 NVMe: avoid kmalloc/kfree for smaller IO ... Currently we allocate an nvme_iod for each IO, which holds the sg list, prps, and other IO related info. Set a threshold of 2 pages and/or 8KB of data, below which we can just embed this in the per-command pdu in blk-mq. For any IO at or below NVME_INT_PAGES and NVME_INT_BYTES, we save a kmalloc and kfree. For higher IOPS, this saves up to 1% of CPU time. Signed-off-by: Jens Axboe <axboe@fb.com> Reviewed-by: Keith Busch <keith.busch@intel.com>		2015-01-29 09:25:34 -08:00
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acpi	Merge branches 'acpi-scan', 'acpi-utils' and 'acpi-pm'	2014-12-18 18:42:56 +01:00
asm-generic	ARM: SoC/iommu configuration for 3.19	2014-12-16 14:53:01 -08:00
clocksource
crypto
drm	Revert "drm/gem: Warn on illegal use of the dumb buffer interface v2"	2014-12-24 13:13:22 +10:00
dt-bindings	Please consider pulling the clk framework changes toward 3.19. It is	2014-12-20 16:42:36 -08:00
keys
kvm	arm/arm64: KVM: Require in-kernel vgic for the arch timers	2014-12-15 11:50:42 +01:00
linux	NVMe: avoid kmalloc/kfree for smaller IO	2015-01-29 09:25:34 -08:00
math-emu
media
memory
misc
net	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2014-12-16 15:53:03 -08:00
pcmcia
ras
rdma	IB/core: Implement support for MMU notifiers regarding on demand paging regions	2014-12-15 18:13:36 -08:00
rxrpc
scsi	block: support different tag allocation policy	2015-01-23 14:15:46 -07:00
soc	Merge branch 'at91/cleanup5' into next/drivers	2014-12-08 18:29:20 +01:00
sound	sound updates for 3.19-rc1	2014-12-11 13:20:50 -08:00
target	SCSI for-linus on 20141220	2014-12-20 13:42:57 -08:00
trace	SCSI for-linus on 20141220	2014-12-20 13:42:57 -08:00
uapi	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending	2014-12-19 18:02:22 -08:00
video
xen
Kbuild