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Hugh Dickins 1cbf0a5884 ext4: add __GFP_NOWARN to GFP_NOWAIT in readahead Since commit `e509ad4d77` ("ext4: use bdev_getblk() to avoid memory reclaim in readahead path") rightly replaced GFP_NOFAIL allocations by GFP_NOWAIT allocations, I've occasionally been seeing "page allocation failure: order:0" warnings under load: all with ext4_sb_breadahead_unmovable() in the stack. I don't think those warnings are of any interest: suppress them with __GFP_NOWARN. Link: https://lkml.kernel.org/r/7bc6ad16-9a4d-dd90-202e-47d6cbb5a136@google.com Fixes: `e509ad4d77` ("ext4: use bdev_getblk() to avoid memory reclaim in readahead path") Signed-off-by: Hugh Dickins <hughd@google.com> Reviewed-by: Jan Kara <jack@suse.cz> Cc: Hui Zhu <teawater@antgroup.com> Cc: Matthew Wilcox (Oracle) <willy@infradead.org> Cc: Theodore Ts'o <tytso@mit.edu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>		2023-10-25 16:47:14 -07:00
arch
block
certs
crypto
Documentation	Docs/admin-guide/mm/damon/usage: update for tried regions update time interval	2023-10-18 14:34:19 -07:00
drivers	mm, pcp: reduce lock contention for draining high-order pages	2023-10-25 16:47:10 -07:00
fs	ext4: add __GFP_NOWARN to GFP_NOWAIT in readahead	2023-10-25 16:47:14 -07:00
include	mm/khugepaged: convert alloc_charge_hpage() to use folios	2023-10-25 16:47:14 -07:00
init
io_uring
ipc
kernel	sched/fair: use folio_xchg_last_cpupid() in should_numa_migrate_memory()	2023-10-25 16:47:12 -07:00
lib
LICENSES
mm	mm: migrate: record the mlocked page status to remove unnecessary lru drain	2023-10-25 16:47:14 -07:00
net
rust
samples
scripts
security
sound
tools	tools/mm: update the usage output to be more organized	2023-10-18 14:34:19 -07:00
usr
virt
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
.rustfmt.toml
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS	selftests: add a selftest to verify hugetlb usage in memcg	2023-10-18 14:34:18 -07:00
Makefile
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.