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Christoph Hellwig e079d7c4db
devtmpfs: don't use vfs_getattr_nosec to query i_mode
The recent move of the bdev_statx call to the low-level vfs_getattr_nosec
helper caused it being used by devtmpfs, which leads to deadlocks in
md teardown due to the block device lookup and put interfering with the
unusual lifetime rules in md.

But as handle_remove only works on inodes created and owned by devtmpfs
itself there is no need to use vfs_getattr_nosec vs simply reading the
mode from the inode directly.  Switch to that to avoid the bdev lookup
or any other unintentional side effect.

Reported-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>
Reported-by: Xiao Ni <xni@redhat.com>
Fixes: 777d0961ff ("fs: move the bdex_statx call to vfs_getattr_nosec")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/20250423045941.1667425-1-hch@lst.de
Tested-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>
Tested-by: Xiao Ni <xni@redhat.com>
Tested-by: Ayush Jain <Ayush.jain3@amd.com>
Tested-by: Heiko Carstens <hca@linux.ibm.com>
Reviewed-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-04-25 12:11:45 +02:00
arch Miscellaneous x86 fixes: 2025-04-18 14:04:57 -07:00
block vfs-6.15-rc3.fixes.2 2025-04-19 14:31:08 -07:00
certs sign-file,extract-cert: use pkcs11 provider for OPENSSL MAJOR >= 3 2024-09-20 19:52:48 +03:00
crypto crypto: ahash - Disable request chaining 2025-04-12 09:33:09 +08:00
Documentation 16 hotfixes. 2 are cc:stable and the remainder address post-6.14 issues 2025-04-19 21:46:58 -07:00
drivers devtmpfs: don't use vfs_getattr_nosec to query i_mode 2025-04-25 12:11:45 +02:00
fs fix a couple of races in MNT_TREE_BENEATH handling by do_move_mount() 2025-04-23 08:06:22 +02:00
include fs: fall back to file_ref_put() for non-last reference 2025-04-22 18:16:09 +02:00
init Kconfig: switch CONFIG_SYSFS_SYCALL default to n 2025-04-15 10:28:35 +02:00
io_uring io_uring/zcrx: fix late dma unmap for a dead dev 2025-04-18 06:12:10 -06:00
ipc treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
kernel sched_ext: Fixes for v6.15-rc3 2025-04-21 19:16:29 -07:00
lib hardening fixes for v6.15-rc3 2025-04-18 13:20:20 -07:00
LICENSES LICENSES: add 0BSD license text 2024-09-01 20:43:24 -07:00
mm mm/migrate: fix sleep in atomic for large folios and buffer heads 2025-04-22 18:16:08 +02:00
net Including fixes from Bluetooth, CAN and Netfilter. 2025-04-17 11:45:30 -07:00
rust rust: helpers: Add dma_alloc_attrs() and dma_free_attrs() 2025-04-15 23:06:03 +02:00
samples samples/livepatch: add module descriptions 2025-04-11 17:32:38 -07:00
scripts Rust fixes for v6.15 2025-04-19 10:02:43 -07:00
security hardening: Disable GCC randstruct for COMPILE_TEST 2025-04-15 13:50:17 -07:00
sound ASoC: Fixes for v6.15 2025-04-11 15:51:19 +02:00
tools sched_ext: Fixes for v6.15-rc3 2025-04-21 19:16:29 -07:00
usr kbuild: hdrcheck: fix cross build with clang 2025-03-05 04:06:45 +09:00
virt ARM: 2025-04-08 13:47:55 -07:00
.clang-format clang-format: Update the ForEachMacros list for v6.15-rc1 2025-04-13 11:03:59 +02:00
.clippy.toml rust: give Clippy the minimum supported Rust version 2025-01-10 00:17:25 +01:00
.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: Create intermediate vmlinux build with relocations preserved 2025-03-17 00:29:50 +09:00
.mailmap sound fixes for 6.15-rc3 2025-04-17 10:14:51 -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 MAINTAINERS: update SLAB ALLOCATOR maintainers 2025-04-17 20:10:06 -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 MAINTAINERS: add HFS/HFS+ maintainers 2025-04-22 18:16:07 +02:00
Makefile gcc-15: disable '-Wunterminated-string-initialization' entirely for now 2025-04-20 15:30:53 -07:00
README README: Fix spelling 2024-03-18 03:36:32 -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 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.