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Filipe Manana 7c3acdb998 btrfs: send: add unlikely to all unexpected overflow checks
There are several checks for unexpected overflows of buffers and path
lengths that makes us fail the send operation with an error if for some
highly unexpected reason they happen. So add the unlikely tag to those
checks to hint the compiler to generate better code, while also making
it more explicit in the source that it's highly unexpected.

With gcc 14.2.0-19 from Debian on x86_64, I also got a small reduction
the text size of the btrfs module.

Before:

  $ size fs/btrfs/btrfs.ko
     text	   data	    bss	    dec	    hex	filename
  1936917	 162723	  15592	2115232	 2046a0	fs/btrfs/btrfs.ko

After:

  $ size fs/btrfs/btrfs.ko
     text	   data	    bss	    dec	    hex	filename
  1936789	 162723	  15592	2115104	 204620	fs/btrfs/btrfs.ko

Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2025-11-25 01:53:33 +01:00
arch Fix perf CPU-clock counters, and address a static checker warning. 2025-11-23 08:20:15 -08:00
block vfs-6.18-rc7.fixes 2025-11-17 09:11:27 -08:00
certs sign-file,extract-cert: use pkcs11 provider for OPENSSL MAJOR >= 3 2024-09-20 19:52:48 +03:00
crypto This push contains the following changes: 2025-10-10 08:56:16 -07:00
Documentation Input updates for v6.18-rc6 2025-11-22 09:58:41 -08:00
drivers Fixes for the Allwinner clk driver: 2025-11-23 12:03:28 -08:00
fs btrfs: send: add unlikely to all unexpected overflow checks 2025-11-25 01:53:33 +01:00
include btrfs: implement shutdown ioctl 2025-11-24 21:56:17 +01:00
init printk changes for 6.18 2025-10-04 11:13:11 -07:00
io_uring io_uring/cmd_net: fix wrong argument types for skb_queue_splice() 2025-11-20 11:40:15 -07:00
ipc namespace-6.18-rc1 2025-09-29 11:20:29 -07:00
kernel Miscellaneous fixes: 2025-11-23 08:23:30 -08:00
lib Crypto library fix for v6.18-rc7 2025-11-22 11:53:53 -08:00
LICENSES LICENSES: Replace the obsolete address of the FSF in the GFDL-1.2 2025-07-24 11:15:39 +02:00
mm slab fix for 6.18-rc7 2025-11-20 10:49:12 -08:00
net Including fixes from IPsec and wireless. 2025-11-20 08:52:07 -08:00
rust rust: Add -fno-isolate-erroneous-paths-dereference to bindgen_skip_c_flags 2025-11-10 08:37:06 +08:00
samples samples: work around glibc redefining some of our defines wrong 2025-11-21 09:29:02 -08:00
scripts Rust fixes for v6.18 (2nd) 2025-11-14 15:36:15 -08:00
security selinux/stable-6.18 PR 20251121 2025-11-22 09:24:36 -08:00
sound ALSA: usb-audio: Add native DSD quirks for PureAudio DAC series 2025-11-14 14:19:47 +01:00
tools RISC-V updates for v6.18-rc7 2025-11-22 09:44:50 -08:00
usr gen_init_cpio: Ignore fsync() returning EINVAL on pipes 2025-10-07 09:53:05 -07:00
virt KVM: guest_memfd: Remove bindings on memslot deletion when gmem is dying 2025-11-04 09:16:53 -08:00
.clang-format memblock: drop for_each_free_mem_pfn_range_in_zone_from() 2025-09-14 08:49:03 +03:00
.clippy.toml rust: clean Rust 1.88.0's warning about clippy::disallowed_macros configuration 2025-05-07 00:11:47 +02:00
.cocciconfig
.editorconfig .editorconfig: remove trim_trailing_whitespace option 2024-06-13 16:47:52 +02:00
.get_maintainer.ignore MAINTAINERS: remove Alyssa Rosenzweig 2025-09-18 21:17:31 +02:00
.gitattributes .gitattributes: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore .gitignore: ignore compile_commands.json globally 2025-08-12 15:53:55 -07:00
.mailmap soc: fixes for 6.18, part 3 2025-11-19 09:36:04 -08:00
.pylintrc tools: docs: parse-headers.py: move it from sphinx dir 2025-08-29 15:54:42 -06:00
.rustfmt.toml rust: add .rustfmt.toml 2022-09-28 09:02:20 +02:00
COPYING
CREDITS MAINTAINERS: mark ISDN subsystem as orphan 2025-10-27 17:49:45 -07:00
Kbuild sched: Make migrate_{en,dis}able() inline 2025-09-25 09:57:16 +02:00
Kconfig io_uring: Rename KConfig to Kconfig 2025-02-19 14:53:27 -07:00
MAINTAINERS gpio fixes for v6.18-rc7 2025-11-21 10:43:58 -08:00
Makefile Linux 6.18-rc7 2025-11-23 14:53:16 -08:00
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.