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Johannes Kimmel cdd459a58b btrfs: correctly escape subvol in btrfs_show_options() 
commit dc08c58696 upstream.

Currently, displaying the btrfs subvol mount option doesn't escape ','.
This makes parsing /proc/self/mounts and /proc/self/mountinfo
ambiguous for subvolume names that contain commas. The text after the
comma could be mistaken for another option (think "subvol=foo,ro", where
ro is actually part of the subvolumes name).

Replace the manual escape characters list with a call to
seq_show_option(). Thanks to Calvin Walton for suggesting this approach.

Fixes: c8d3fe028f ("Btrfs: show subvol= and subvolid= in /proc/mounts")
CC: stable@vger.kernel.org # 5.4+
Suggested-by: Calvin Walton <calvin.walton@kepstin.ca>
Signed-off-by: Johannes Kimmel <kernel@bareminimum.eu>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2025-05-02 07:44:12 +02:00
arch riscv: KGDB: Remove ".option norvc/.option rvc" for kgdb_compiled_break 2025-05-02 07:44:11 +02:00
block block: fix 'kmem_cache of name 'bio-108' already exists' 2025-04-10 14:31:51 +02:00
certs certs/blacklist_hashes.c: fix const confusion in certs blacklist 2022-06-22 14:22:01 +02:00
crypto crypto: testmgr - some more fixes to RSA test vectors 2025-03-13 12:50:48 +01:00
Documentation scsi: libsas: Delete lldd_clear_aca callback 2025-05-02 07:44:07 +02:00
drivers asus-laptop: Fix an uninitialized variable 2025-05-02 07:44:12 +02:00
fs btrfs: correctly escape subvol in btrfs_show_options() 2025-05-02 07:44:12 +02:00
include nfs: add missing selections of CONFIG_CRC32 2025-05-02 07:44:12 +02:00
init initramfs: avoid filename buffer overrun 2024-12-14 19:50:42 +01:00
io_uring io_uring: fix possible deadlock in io_register_iowq_max_workers() 2024-11-17 15:06:25 +01:00
ipc ipc/sem: Fix dangling sem_array access in semtimedop race 2022-12-08 11:28:45 +01:00
kernel cpufreq/sched: Fix the usage of CPUFREQ_NEED_UPDATE_LIMITS 2025-05-02 07:44:11 +02:00
lib lib: scatterlist: fix sg_split_phys to preserve original scatterlist offsets 2025-05-02 07:44:03 +02:00
LICENSES LICENSES/dual/CC-BY-4.0: Git rid of "smart quotes" 2021-07-15 06:31:24 -06:00
mm mm/hwpoison: do not send SIGBUS to processes with recovered clean pages 2025-05-02 07:44:04 +02:00
net net: dsa: avoid refcount warnings when ds->ops->tag_8021q_vlan_del() fails 2025-05-02 07:44:11 +02:00
samples samples/landlock: Fix possible NULL dereference in parse_path() 2025-03-13 12:49:57 +01:00
scripts selinux: Chain up tool resolving errors in install_policy.sh 2025-04-10 14:31:57 +02:00
security tomoyo: don't emit warning in tomoyo_write_control() 2025-03-13 12:50:18 +01:00
sound ASoC: codecs:lpass-wsa-macro: Fix logic of enabling vi channels 2025-05-02 07:44:12 +02:00
tools ktest: Fix Test Failures Due to Missing LOG_FILE Directories 2025-05-02 07:43:58 +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: Fix a data race on last_boosted_vcpu in kvm_vcpu_on_spin() 2024-10-22 15:40:41 +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 Remove *.orig pattern from .gitignore 2024-10-17 15:11:10 +02:00
.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 5.15.180 2025-04-10 14:32:07 +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.