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SeongJae Park ac93e87c66 mm/damon/core: set effective quota on first charge window 
The effective quota of a scheme is initialized zero, which means there is
no quota.  It is set based on user-specified time/quota/quota goals.  But
the later value set is done only from the second charge window.  As a
result, a scheme having a user-specified quota can work as not having the
quota (unexpectedly fast) for the first charge window.  In practical and
common use cases the quota interval is not too long, and the scheme's
target access pattern is restrictive.  Hence the issue should be modest. 
That said, it is apparently an unintended misbehavior.  Fix the problem by
setting esz on the first charge window.

Link: https://lkml.kernel.org/r/20250916032339.115817-3-sj@kernel.org
Fixes: 1cd2430300 ("mm/damon/schemes: implement time quota") # 5.16.x
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Joshua Hahn <joshua.hahnjy@gmail.com>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-09-21 14:22:36 -07:00
arch ptdesc: remove ptdesc_to_virt() 2025-09-21 14:22:27 -07:00
block block: use largest_zero_folio in __blkdev_issue_zero_pages() 2025-09-13 16:54:54 -07:00
certs sign-file,extract-cert: use pkcs11 provider for OPENSSL MAJOR >= 3 2024-09-20 19:52:48 +03:00
crypto crypto: remove nth_page() usage within SG entry 2025-09-21 14:22:09 -07:00
Documentation alloc_tag: mark inaccurate allocation counters in /proc/allocinfo output 2025-09-21 14:22:36 -07:00
drivers mm: make folio page count functions return unsigned 2025-09-21 14:22:31 -07:00
fs mm/hwpoison: decouple hwpoison_filter from mm/memory-failure.c 2025-09-21 14:22:21 -07:00
include alloc_tag: mark inaccurate allocation counters in /proc/allocinfo output 2025-09-21 14:22:36 -07:00
init init/main.c: fix boot time tracing crash 2025-09-03 17:10:36 -07:00
io_uring io_uring/zcrx: remove nth_page() usage within folio 2025-09-21 14:22:05 -07:00
ipc vfs-6.17-rc1.mmap_prepare 2025-07-28 13:43:25 -07:00
kernel mm/oom_kill: thaw the entire OOM victim process 2025-09-21 14:22:35 -07:00
lib alloc_tag: mark inaccurate allocation counters in /proc/allocinfo output 2025-09-21 14:22:36 -07:00
LICENSES LICENSES: Replace the obsolete address of the FSF in the GFDL-1.2 2025-07-24 11:15:39 +02:00
mm mm/damon/core: set effective quota on first charge window 2025-09-21 14:22:36 -07:00
net net: ipv4: fix regression in local-broadcast routes 2025-08-28 10:52:30 +02:00
rust rust: maple_tree: add MapleTreeAlloc 2025-09-21 14:22:19 -07:00
samples samples/cgroup: rm unused MEMCG_EVENTS macro 2025-09-21 14:22:26 -07:00
scripts scripts/decode_stacktrace.sh: code: preserve alignment 2025-09-21 14:22:28 -07:00
security + Features 2025-08-04 08:17:28 -07:00
sound ALSA: hda/hdmi: Add pin fix for another HP EliteDesk 800 G4 model 2025-09-01 13:51:57 +02:00
tools selftests/mm: protection_keys: fix dead code 2025-09-21 14:22:34 -07:00
usr usr/include: openrisc: don't HDRTEST bpf_perf_event.h 2025-05-12 15:03:17 +09:00
virt Merge tag 'kvm-x86-no_assignment-6.17' of https://github.com/kvm-x86/linux into HEAD 2025-07-29 08:36:42 -04:00
.clang-format Linux 6.15-rc5 2025-05-06 16:39:25 +10:00
.clippy.toml rust: clean Rust 1.88.0's warning about clippy::disallowed_macros configuration 2025-05-07 00:11:47 +02:00
.cocciconfig
.editorconfig .editorconfig: remove trim_trailing_whitespace option 2024-06-13 16:47:52 +02:00
.get_maintainer.ignore MAINTAINERS: Retire Ralf Baechle 2024-11-12 15:48:59 +01:00
.gitattributes .gitattributes: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore gitignore: allow .pylintrc to be tracked 2025-07-02 17:10:04 -06:00
.mailmap .mailmap: add entry for Easwar Hariharan 2025-08-19 16:35:55 -07:00
.pylintrc docs: add a .pylintrc file with sys path for docs scripts 2025-04-09 12:10:33 -06:00
.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 MAINTAINERS: retire Boris from TLS maintainers 2025-08-26 17:36:01 -07:00
Kbuild drm: ensure drm headers are self-contained and pass kernel-doc 2025-02-12 10:44:43 +02:00
Kconfig io_uring: Rename KConfig to Kconfig 2025-02-19 14:53:27 -07:00
MAINTAINERS mm, swap: use the swap table for the swap cache and switch API 2025-09-21 14:22:24 -07:00
Makefile Linux 6.17-rc4 2025-08-31 15:33:07 -07:00
README README: Fix spelling 2024-03-18 03:36:32 -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 reStructuredText 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.