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Chao Yu e8d64f598e f2fs: get rid of online repaire on corrupted directory [ Upstream commit `884ee6dc85` ] syzbot reports a f2fs bug as below: kernel BUG at fs/f2fs/inode.c:896! RIP: 0010:f2fs_evict_inode+0x1598/0x15c0 fs/f2fs/inode.c:896 Call Trace: evict+0x532/0x950 fs/inode.c:704 dispose_list fs/inode.c:747 [inline] evict_inodes+0x5f9/0x690 fs/inode.c:797 generic_shutdown_super+0x9d/0x2d0 fs/super.c:627 kill_block_super+0x44/0x90 fs/super.c:1696 kill_f2fs_super+0x344/0x690 fs/f2fs/super.c:4898 deactivate_locked_super+0xc4/0x130 fs/super.c:473 cleanup_mnt+0x41f/0x4b0 fs/namespace.c:1373 task_work_run+0x24f/0x310 kernel/task_work.c:228 ptrace_notify+0x2d2/0x380 kernel/signal.c:2402 ptrace_report_syscall include/linux/ptrace.h:415 [inline] ptrace_report_syscall_exit include/linux/ptrace.h:477 [inline] syscall_exit_work+0xc6/0x190 kernel/entry/common.c:173 syscall_exit_to_user_mode_prepare kernel/entry/common.c:200 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:205 [inline] syscall_exit_to_user_mode+0x279/0x370 kernel/entry/common.c:218 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0010:f2fs_evict_inode+0x1598/0x15c0 fs/f2fs/inode.c:896 Online repaire on corrupted directory in f2fs_lookup() can generate dirty data/meta while racing w/ readonly remount, it may leave dirty inode after filesystem becomes readonly, however, checkpoint() will skips flushing dirty inode in a state of readonly mode, result in above panic. Let's get rid of online repaire in f2fs_lookup(), and leave the work to fsck.f2fs. Fixes: `510022a858` ("f2fs: add F2FS_INLINE_DOTS to recover missing dot dentries") Reported-by: syzbot+ebea2790904673d7c618@syzkaller.appspotmail.com Closes: https://lore.kernel.org/all/000000000000a7b20f061ff2d56a@google.com Signed-off-by: Chao Yu <chao@kernel.org> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		History 2024-10-17 15:11:05 +02:00
arch	riscv: Fix fp alignment bug in perf_callchain_user()	2024-10-17 15:11:03 +02:00
block	block: fix potential invalid pointer dereference in blk_add_partition	2024-10-17 15:10:48 +02:00
certs	certs/blacklist_hashes.c: fix const confusion in certs blacklist	2022-06-22 14:22:01 +02:00
crypto	crypto: xor - fix template benchmarking	2024-10-17 15:10:42 +02:00
Documentation	f2fs: introduce F2FS_IPU_HONOR_OPU_WRITE ipu policy	2024-10-17 15:11:05 +02:00
drivers	ntb_perf: Fix printk format	2024-10-17 15:11:04 +02:00
fs	f2fs: get rid of online repaire on corrupted directory	2024-10-17 15:11:05 +02:00
include	f2fs: get rid of online repaire on corrupted directory	2024-10-17 15:11:05 +02:00
init	init/main.c: Fix potential static_command_line memory overflow	2024-04-27 17:05:28 +02:00
io_uring	io_uring/io-wq: limit retrying worker initialisation	2024-08-19 05:45:22 +02:00
ipc	ipc/sem: Fix dangling sem_array access in semtimedop race	2022-12-08 11:28:45 +01:00
kernel	bpf: Fix bpf_strtol and bpf_strtoul helpers for 32bit	2024-10-17 15:10:58 +02:00
lib	xz: cleanup CRC32 edits from 2018	2024-10-17 15:10:56 +02:00
LICENSES	LICENSES/dual/CC-BY-4.0: Git rid of "smart quotes"	2021-07-15 06:31:24 -06:00
mm	mm: avoid leaving partial pfn mappings around in error case	2024-10-17 15:10:34 +02:00
net	net: tipc: avoid possible garbage value	2024-10-17 15:10:47 +02:00
samples	Add gitignore file for samples/fanotify/ subdirectory	2024-07-27 10:46:16 +02:00
scripts	scripts: kconfig: merge_config: config files: add a trailing newline	2024-10-17 15:10:33 +02:00
security	smackfs: Use rcu_assign_pointer() to ensure safe assignment in smk_set_cipso	2024-10-17 15:10:57 +02:00
sound	ASoC: tda7419: fix module autoloading	2024-10-17 15:10:39 +02:00
tools	perf time-utils: Fix 32-bit nsec parsing	2024-10-17 15:10:59 +02:00
usr	usr/include/Makefile: add linux/nfc.h to the compile-test coverage	2022-02-01 17:27:15 +01:00
virt	KVM: Always flush async #PF workqueue when vCPU is being destroyed	2024-04-10 16:18:34 +02:00
.clang-format	clang-format: Update with the latest for_each macro list	2021-05-12 23:32:39 +02:00
.cocciconfig	scripts: add Linux .cocciconfig for coccinelle	2016-07-22 12:13:39 +02:00
.get_maintainer.ignore	Opt out of scripts/get_maintainer.pl	2019-05-16 10:53:40 -07:00
.gitattributes	.gitattributes: use 'dts' diff driver for dts files	2019-12-04 19:44:11 -08:00
.gitignore	.gitignore: ignore only top-level modules.builtin	2021-05-02 00:43:35 +09:00
.mailmap	mailmap: add Andrej Shadura	2021-10-18 20:22:03 -10:00
COPYING	COPYING: state that all contributions really are covered by this file	2020-02-10 13:32:20 -08:00
CREDITS	MAINTAINERS: Move Daniel Drake to credits	2021-09-21 08:34:58 +03:00
Kbuild	kbuild: rename hostprogs-y/always to hostprogs/always-y	2020-02-04 01:53:07 +09:00
Kconfig	kbuild: ensure full rebuild when the compiler is updated	2020-05-12 13:28:33 +09:00
MAINTAINERS	trace: Relocate event helper files	2024-04-10 16:19:24 +02:00
Makefile	Linux 5.15.167	2024-09-12 11:07:53 +02:00
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.