Trond Myklebust b4f937cffa NFS: Don't run wake_up_bit() when nobody is waiting... ...

"perf lock" shows fairly heavy contention for the bit waitqueue locks
when doing an I/O heavy workload.
Use a bit to tell whether or not there has been contention for a lock
so that we can optimise away the bit waitqueue options in those cases.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>

2017-07-13 17:12:07 -04:00

..

acpi

More ACPI updates for v4.12-rc1

2017-05-10 09:35:42 -07:00

asm-generic

Kbuild UAPI header export updates for v4.12

2017-05-10 20:45:36 -07:00

clocksource

clocksource: arm_arch_timer: add structs to describe MMIO timer

2017-04-19 16:11:48 +01:00

crypto

Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security

2017-05-03 08:50:52 -07:00

drm

drm/dp: start a DPCD based DP sink/branch device quirk database

2017-05-29 13:43:26 +03:00

dt-bindings

Sort of on the quieter side this time, which is probably due more

2017-05-10 13:38:18 -07:00

keys

…

kvm

KVM: arm/arm64: Fix bug when registering redist iodevs

2017-05-18 11:18:12 +02:00

linux

NFS: Don't run wake_up_bit() when nobody is waiting...

2017-07-13 17:12:07 -04:00

math-emu

…

media

[media] cec: rename MEDIA_CEC_NOTIFIER to CEC_NOTIFIER

2017-06-04 15:23:35 -03:00

memory

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misc

…

net

net: Update TCP congestion control documentation

2017-06-05 10:53:24 -04:00

pcmcia

…

ras

…

rdma

RDMA/SA: Fix kernel panic in CMA request handler flow

2017-06-01 17:20:14 -04:00

rxrpc

…

scsi

Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending

2017-05-12 11:44:13 -07:00

soc

powerpc updates for 4.12 part 2

2017-05-12 10:04:09 -07:00

sound

ASoC: Updates for v4.12

2017-05-02 08:25:25 +02:00

target

iscsi-target: Fix initial login PDU asynchronous socket close OOPs

2017-05-31 15:12:31 -07:00

trace

Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux

2017-05-12 11:58:45 -07:00

uapi

KEYS: DH: add __user annotations to keyctl_kdf_params

2017-06-09 13:29:49 +10:00

video

uapi: export all headers under uapi directories

2017-05-11 00:21:54 +09:00

xen

xen: Implement EFI reset_system callback

2017-05-02 12:06:50 +02:00