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Ryusuke Konishi e30ccbb9c0 nilfs2: do not update mtime of renamed directory that is not moved 
A minor issue with nilfs_rename, originating from an old ext2
implementation, is that the mtime is updated even if the rename target is
a directory and it is renamed within the same directory, rather than moved
to a different directory.

In this case, the child directory being renamed does not change in any
way, so changing its mtime is unnecessary according to the specification,
and can unnecessarily confuse backup tools.

In ext2, this issue was fixed by commit 39fe7557b4 ("ext2: Do not update
mtime of a moved directory") and a few subsequent fixes, but it remained
in nilfs2.

Fix this issue by not calling nilfs_set_link(), which rewrites the inode
number of the directory entry that refers to the parent directory, when
the move target is a directory and the source and destination are the same
directory.

Here, the directory to be moved only needs to be read if the inode number
of the parent directory is rewritten with nilfs_set_link, so also adjust
the execution conditions of the preparation work to avoid unnecessary
directory reads.

Link: https://lkml.kernel.org/r/20250111143518.7901-3-konishi.ryusuke@gmail.com
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-01-24 22:47:26 -08:00
arch arch: remove get_task_comm() and print task comm directly 2025-01-12 20:21:15 -08:00
block block: avoid to reuse hctx not removed from cpuhp callback list 2024-12-18 07:25:37 -07:00
certs sign-file,extract-cert: use pkcs11 provider for OPENSSL MAJOR >= 3 2024-09-20 19:52:48 +03:00
crypto crypto: rsassa-pkcs1 - Copy source data for SG list 2024-12-10 13:34:05 +08:00
Documentation Documentation: update the Squashfs filesystem documentation 2025-01-24 22:47:21 -08:00
drivers drivers: remove get_task_comm() and print task comm directly 2025-01-12 20:21:16 -08:00
fs nilfs2: do not update mtime of renamed directory that is not moved 2025-01-24 22:47:26 -08:00
include delayacct: add delay min to record delay peak 2025-01-12 20:21:16 -08:00
init init: fix removal warning for deprecated initrd loading 2025-01-12 20:21:14 -08:00
io_uring io_uring/kbuf: use pre-committed buffer address for non-pollable file 2025-01-03 09:38:37 -07:00
ipc - The series "resource: A couple of cleanups" from Andy Shevchenko 2024-11-25 16:09:48 -08:00
kernel hung_task: add task->flags, blocked by coredump to log 2025-01-24 22:47:24 -08:00
lib lib/list_sort: clarify comparison function requirements in list_sort() 2025-01-24 22:47:23 -08:00
LICENSES LICENSES: add 0BSD license text 2024-09-01 20:43:24 -07:00
mm mm: kmemleak: convert timeouts to secs_to_jiffies() 2025-01-12 20:21:02 -08:00
net net: remove get_task_comm() and print task comm directly 2025-01-12 20:21:16 -08:00
rust workqueue: Fixes for v6.13-rc5 2025-01-03 15:03:56 -08:00
samples livepatch: convert timeouts to secs_to_jiffies() 2025-01-12 20:21:05 -08:00
scripts checkpatch: don't warn about extra parentheses in staging/ 2025-01-24 22:47:24 -08:00
security security: remove get_task_comm() and print task comm directly 2025-01-12 20:21:16 -08:00
sound ALSA: line6: convert timeouts to secs_to_jiffies() 2025-01-12 20:21:05 -08:00
tools delayacct: add delay min to record delay peak 2025-01-12 20:21:16 -08:00
usr kbuild: Drop support for include/asm-<arch> in headers_check.pl 2024-12-21 11:43:17 +09:00
virt VFIO updates for v6.13 2024-11-27 12:57:03 -08:00
.clang-format clang-format: Update with v6.11-rc1's for_each macro list 2024-08-02 13:20:31 +02:00
.clippy.toml rust: enable Clippy's check-private-items 2024-10-07 21:39:57 +02:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.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 Kbuild updates for v6.13 2024-11-30 13:41:50 -08:00
.mailmap mailmap: update entry for Linus Lüssing 2025-01-24 22:47:23 -08:00
.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 CREDITS: fix spelling mistake 2025-01-24 22:47:25 -08:00
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 MAINTAINERS: fix list entries with display names 2025-01-24 22:47:22 -08:00
Makefile Linux 6.13-rc6 2025-01-05 14:13:40 -08:00
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.