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Linus Torvalds 3754707bcc Revert "memcg: enable accounting for file lock caches" 
This reverts commit 0f12156dff.

The kernel test robot reports a sizeable performance regression for this
commit, and while it clearly does the rigth thing in theory, we'll need
to look at just how to avoid or minimize the performance overhead of the
memcg accounting.

People already have suggestions on how to do that, but it's "future
work".

So revert it for now.

Link: https://lore.kernel.org/lkml/20210907150757.GE17617@xsang-OptiPlex-9020/
Acked-by: Jens Axboe <axboe@kernel.dk>
Acked-by: Shakeel Butt <shakeelb@google.com>
Acked-by: Roman Gushchin <guro@fb.com>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-09-07 11:21:48 -07:00
arch Revert "mm/gup: remove try_get_page(), call try_get_compound_head() directly" 2021-09-07 11:03:45 -07:00
block block-5.15-2021-09-05 2021-09-06 10:06:26 -07:00
certs certs: Add support for using elliptic curve keys for signing modules 2021-08-23 19:55:42 +03:00
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2021-08-30 12:57:10 -07:00
Documentation Tracing updates for 5.15: 2021-09-05 11:50:41 -07:00
drivers thunderbolt: test: split up test cases in tb_test_credit_alloc_all 2021-09-06 12:27:03 -07:00
fs Revert "memcg: enable accounting for file lock caches" 2021-09-07 11:21:48 -07:00
include Revert "mm/gup: remove try_get_page(), call try_get_compound_head() directly" 2021-09-07 11:03:45 -07:00
init Enable '-Werror' by default for all kernel builds 2021-09-05 11:24:05 -07:00
ipc memcg: enable accounting of ipc resources 2021-09-03 09:58:12 -07:00
kernel Tracing updates for 5.15: 2021-09-05 11:50:41 -07:00
lib lib/test_scanf: split up number parsing test routines 2021-09-06 11:04:03 -07:00
LICENSES LICENSES/dual/CC-BY-4.0: Git rid of "smart quotes" 2021-07-15 06:31:24 -06:00
mm Revert "mm/gup: remove try_get_page(), call try_get_compound_head() directly" 2021-09-07 11:03:45 -07:00
net NFS Client Updates for Linux 5.15 2021-09-04 10:25:26 -07:00
samples VFIO update for v5.15-rc1 2021-09-02 13:41:33 -07:00
scripts don't make the syscall checking produce errors from warnings 2021-09-06 09:15:09 -07:00
security Kbuild updates for v5.15 2021-09-03 15:33:47 -07:00
sound Kbuild updates for v5.15 2021-09-03 15:33:47 -07:00
tools perf tools changes for v5.15: 2021-09-05 11:56:18 -07:00
usr
virt KVM: Do not leak memory for duplicate debugfs directories 2021-08-04 06:02:03 -04:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap mailmap: update email address of Matthias Fuchs and Thomas Körper 2021-08-19 09:39:44 +02:00
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS misc-5.15-2021-09-05 2021-09-06 10:00:25 -07:00
Makefile Enable '-Werror' by default for all kernel builds 2021-09-05 11:24:05 -07:00
README

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.