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Mikulas Patocka 5054e778fc dm crypt: allocate compound pages if possible

It was reported that allocating pages for the write buffer in dm-crypt
causes measurable overhead [1].

Change dm-crypt to allocate compound pages if they are available. If
not, fall back to the mempool.

[1] https://listman.redhat.com/archives/dm-devel/2023-February/053284.html

Suggested-by: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>

2023-06-16 18:24:13 -04:00

arch

block: replace fmode_t with a block-specific type for block open flags

2023-06-12 08:04:05 -06:00

block

blk-mq: fix NULL dereference on q->elevator in blk_mq_elv_switch_none

2023-06-16 10:12:25 -06:00

certs

KEYS: Add missing function documentation

2023-04-24 16:15:52 +03:00

crypto

Merge tag 'v6.4-p2' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

2023-05-07 10:57:14 -07:00

Documentation

bcache: Remove dead references to cache_readaheads

2023-06-15 07:30:11 -06:00

drivers

dm crypt: allocate compound pages if possible

2023-06-16 18:24:13 -04:00

splice: simplify a conditional in copy_splice_read

2023-06-16 10:08:08 -06:00

include

iov_iter: remove iov_iter_get_pages and iov_iter_get_pages_alloc

2023-06-16 10:08:09 -06:00

init

block: move the code to do early boot lookup of block devices to block/

2023-06-05 10:57:40 -06:00

io_uring

Merge tag 'for-6.4/io_uring-2023-05-07' of git://git.kernel.dk/linux

2023-05-07 10:00:09 -07:00

ipc

Merge branch 'work.namespace' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2023-02-24 19:20:07 -08:00

kernel

block: replace fmode_t with a block-specific type for block open flags

2023-06-12 08:04:05 -06:00

lib

iov_iter: remove iov_iter_get_pages and iov_iter_get_pages_alloc

2023-06-16 10:08:09 -06:00

LICENSES

LICENSES: Add the copyleft-next-0.3.1 license

2022-11-08 15:44:01 +01:00

block: replace fmode_t with a block-specific type for block open flags

2023-06-12 08:04:05 -06:00

net

net: Make sock_splice_read() use copy_splice_read() by default

2023-05-24 08:42:16 -06:00

rust

Merge tag 'rust-6.4' of https://github.com/Rust-for-Linux/linux

2023-04-30 11:20:22 -07:00

samples

Merge tag 'loongarch-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson

2023-05-04 12:40:16 -07:00

scripts

Merge tag 'locking-core-2023-05-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2023-05-05 12:56:55 -07:00

security

Merge tag 'integrity-v6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity

2023-04-29 10:11:32 -07:00

sound

Merge tag 'sound-fix-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

2023-05-06 08:07:11 -07:00

tools

Merge tag 'cxl-fixes-6.4-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl

2023-05-14 12:32:34 -07:00

usr

initramfs: Check negative timestamp to prevent broken cpio archive

2023-04-16 17:37:01 +09:00

virt

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

2023-05-01 12:06:20 -07:00

.clang-format

Merge tag 'cxl-for-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl

2023-04-30 11:51:51 -07:00

.cocciconfig

…

.get_maintainer.ignore

get_maintainer: add Alan to .get_maintainer.ignore

2022-08-20 15:17:44 -07:00

.gitattributes

.gitattributes: use 'dts' diff driver for *.dtso files

2023-02-26 15:28:23 +09:00

.gitignore

Merge tag 'linux-kselftest-kunit-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

2023-04-24 12:31:32 -07:00

.mailmap

Merge tag 'for-6.4/block-2023-05-06' of git://git.kernel.dk/linux

2023-05-06 08:28:58 -07:00

.rustfmt.toml

rust: add .rustfmt.toml

2022-09-28 09:02:20 +02:00

COPYING

COPYING: state that all contributions really are covered by this file

2020-02-10 13:32:20 -08:00

CREDITS

Merge tag 'docs-6.4-2' of git://git.lwn.net/linux

2023-05-05 13:16:42 -07:00

Kbuild

Merge tag 'kbuild-v6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

2022-10-10 12:00:45 -07:00

Kconfig

kbuild: ensure full rebuild when the compiler is updated

2020-05-12 13:28:33 +09:00

MAINTAINERS

Merge tag 'dt-fixes-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-dt

2023-05-11 09:01:40 -05:00

Makefile

Linux 6.4-rc2

2023-05-14 12:51:40 -07:00

README

Drop all 00-INDEX files from Documentation/

2018-09-09 15:08:58 -06:00

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.