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Chuck Lever ea888a14ac SUNRPC: Mitigate cond_resched() in xprt_transmit()
[ Upstream commit 6f9f17287e78e5049931af2037b15b26d134a32a ]

The original purpose of this expensive call is to prevent a long
queue of requests from blocking other work.

The cond_resched() call is unnecessary after just a single send
operation.

For longer queues, instead of invoking the kernel scheduler, simply
release the transport send lock and return to the RPC scheduler.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-05 11:43:18 +01:00
arch riscv: Define AT_VECTOR_SIZE_ARCH for ARCH_DLINFO 2020-11-05 11:43:17 +01:00
block block: ratelimit handle_bad_sector() message 2020-10-29 09:58:01 +01:00
certs
crypto
Documentation media: videodev2.h: RGB BT2020 and HSV are always full range 2020-11-05 11:43:15 +01:00
drivers usb: xhci: omit duplicate actions when suspending a runtime suspended host. 2020-11-05 11:43:18 +01:00
fs xfs: fix realtime bitmap/summary file truncation when growing rt volume 2020-11-05 11:43:14 +01:00
include usb: typec: tcpm: During PR_SWAP, source caps should be sent only after tSwapSourceStart 2020-11-05 11:43:15 +01:00
init printk: reduce LOG_BUF_SHIFT range for H8300 2020-11-05 11:43:16 +01:00
ipc
kernel bpf: Permit map_ptr arithmetic with opcode add and offset 0 2020-11-05 11:43:17 +01:00
lib
LICENSES
mm
net SUNRPC: Mitigate cond_resched() in xprt_transmit() 2020-11-05 11:43:18 +01:00
samples samples/bpf: Fix possible deadlock in xdpsock 2020-11-05 11:43:17 +01:00
scripts scripts/setlocalversion: make git describe output more reliable 2020-11-01 12:01:01 +01:00
security evm: Check size of security.evm before using it 2020-11-01 12:01:05 +01:00
sound ALSA: hda/ca0132 - Add new quirk ID for SoundBlaster AE-7. 2020-10-29 09:58:09 +01:00
tools selftests/bpf: Define string const as global for test_sysctl_prog.c 2020-11-05 11:43:17 +01:00
usr
virt
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.cocciconfig
.get_maintainer.ignore
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Makefile Linux 5.4.74 2020-11-01 12:01:07 +01:00
README

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.