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Xiaolei Wang 835bc157da mm/kmemleak: use object_cache instead of kmemleak_initialized to check in set_track_prepare()
Patch series "mm/kmemleak: use object_cache instead of
kmemleak_initialized", v3.

Use object_cache instead of kmemleak_initialized to check in
set_track_prepare(), so that memory leaks after kmemleak_init() can be
recorded and Rename kmemleak_initialized to kmemleak_late_initialized

unreferenced object 0xc674ca80 (size 64):
 comm "swapper/0", pid 1, jiffies 4294938337 (age 204.880s)
 hex dump (first 32 bytes):
  80 55 75 c6 80 54 75 c6 00 55 75 c6 80 52 75 c6 .Uu..Tu..Uu..Ru.
  00 53 75 c6 00 00 00 00 00 00 00 00 00 00 00 00 .Su..........


This patch (of 2):

kmemleak_initialized is set in kmemleak_late_init(), which also means that
there is no call trace which object's memory leak is before
kmemleak_late_init(), so use object_cache instead of kmemleak_initialized
to check in set_track_prepare() to avoid no call trace records when there
is a memory leak in the code between kmemleak_init() and
kmemleak_late_init().

unreferenced object 0xc674ca80 (size 64):
 comm "swapper/0", pid 1, jiffies 4294938337 (age 204.880s)
 hex dump (first 32 bytes):
  80 55 75 c6 80 54 75 c6 00 55 75 c6 80 52 75 c6 .Uu..Tu..Uu..Ru.
  00 53 75 c6 00 00 00 00 00 00 00 00 00 00 00 00 .Su..........

Link: https://lkml.kernel.org/r/20230815144128.3623103-1-xiaolei.wang@windriver.com
Link: https://lkml.kernel.org/r/20230815144128.3623103-2-xiaolei.wang@windriver.com
Fixes: 56a61617dd ("mm: use stack_depot for recording kmemleak's backtrace")
Signed-off-by: Xiaolei Wang <xiaolei.wang@windriver.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Zhaoyang Huang <zhaoyang.huang@unisoc.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-08-21 13:38:02 -07:00
arch riscv: include asm/cacheflush.h in asm/hugetlb.h 2023-08-21 13:38:00 -07:00
block block-6.5-2023-07-21 2023-07-22 11:05:15 -07:00
certs KEYS: Add missing function documentation 2023-04-24 16:15:52 +03:00
crypto crypto: algif_hash - Fix race between MORE and non-MORE sends 2023-07-08 22:48:42 +10:00
Documentation mm/ksm: add pages scanned metric 2023-08-21 13:38:02 -07:00
drivers mm,thp: fix nodeN/meminfo output alignment 2023-08-21 13:38:01 -07:00
fs mm,thp: fix smaps THPeligible output alignment 2023-08-21 13:38:01 -07:00
include writeback: remove unused delaration of bdi_async_bio_wq 2023-08-21 13:38:01 -07:00
init mm: remove arguments of show_mem() 2023-08-18 10:12:02 -07:00
io_uring io_uring-6.5-2023-07-28 2023-07-28 10:19:44 -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 memfd: replace ratcheting feature from vm.memfd_noexec with hierarchy 2023-08-21 13:37:59 -07:00
lib maple_tree: replace data before marking dead in split and spanning store 2023-08-21 13:37:41 -07:00
LICENSES LICENSES: Add the copyleft-next-0.3.1 license 2022-11-08 15:44:01 +01:00
mm mm/kmemleak: use object_cache instead of kmemleak_initialized to check in set_track_prepare() 2023-08-21 13:38:02 -07:00
net mm: allow per-VMA locks on file-backed VMAs 2023-08-18 10:12:51 -07:00
rust rust: error: impl Debug for Error with errname() integration 2023-06-13 01:24:42 +02:00
samples arm64: ftrace: Add direct call trampoline samples support 2023-07-10 17:51:54 -04:00
scripts x86: 2023-07-30 11:19:08 -07:00
security selinux: use vma_is_initial_stack() and vma_is_initial_heap() 2023-08-21 13:37:31 -07:00
sound ASoC: Fixes for v6.5 2023-07-27 14:54:23 +02:00
tools mm,thp: fix smaps THPeligible output alignment 2023-08-21 13:38:01 -07:00
usr initramfs: Encode dependency on KBUILD_BUILD_TIMESTAMP 2023-06-06 17:54:49 +09:00
virt KVM: Grab a reference to KVM for VM and vCPU stats file descriptors 2023-07-29 11:05:28 -04:00
.clang-format iommu: Add for_each_group_device() 2023-05-23 08:15:51 +02:00
.cocciconfig
.get_maintainer.ignore get_maintainer: add Alan to .get_maintainer.ignore 2022-08-20 15:17:44 -07:00
.gitattributes .gitattributes: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore Revert ".gitignore: ignore *.cover and *.mbx" 2023-07-04 15:05:12 -07:00
.mailmap mailmap: update remaining active codeaurora.org email addresses 2023-07-27 13:07:05 -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 - Address -Wmissing-prototype warnings 2023-06-26 16:43:54 -07:00
Kbuild Kbuild updates for v6.1 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 mm: kill frontswap 2023-08-21 13:37:26 -07:00
Makefile Linux 6.5-rc4 2023-07-30 13:23:47 -07:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -06:00

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.