No description
Find a file
David Sterba ba8a9a0537 btrfs: optimize split page read in btrfs_get_token_##bits
The fallback path calls helper read_extent_buffer to do read of the data
spanning two extent buffer pages. As the size is known, we can do the
read directly in two steps.  This removes one function call and compiler
can optimize memcpy as the sizes are known at compile time. The cached
token address is set to the second page.

Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2020-05-25 11:25:34 +02:00
arch
block
certs
crypto
Documentation block: add bio_for_each_bvec_all() 2020-05-25 11:25:24 +02:00
drivers
fs btrfs: optimize split page read in btrfs_get_token_##bits 2020-05-25 11:25:34 +02:00
include btrfs: remove more obsolete v0 extent ref declarations 2020-05-25 11:25:29 +02:00
init
ipc
kernel
lib
LICENSES
mm
net
samples
scripts
security
sound
tools
usr
virt
.clang-format block: add bio_for_each_bvec_all() 2020-05-25 11:25:24 +02:00
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS
Makefile
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.