]> git.proxmox.com Git - mirror_ubuntu-jammy-kernel.git/commit - lib/find_bit.c
lib: add fast path for find_first_*_bit() and find_last_bit()
authorYury Norov <yury.norov@gmail.com>
Fri, 7 May 2021 01:03:14 +0000 (18:03 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Fri, 7 May 2021 02:24:12 +0000 (19:24 -0700)
commit2cc7b6a44ac21d31b398b03f4845c53152070416
treee7eb8d45b93df30058043ae15963dd82eacdef42
parent277a20a498d30753f5d8a607dbf967bc163552c1
lib: add fast path for find_first_*_bit() and find_last_bit()

Similarly to bitmap functions, users would benefit if we'll handle a case
of small-size bitmaps that fit into a single word.

While here, move the find_last_bit() declaration to bitops/find.h where
other find_*_bit() functions sit.

Link: https://lkml.kernel.org/r/20210401003153.97325-11-yury.norov@gmail.com
Signed-off-by: Yury Norov <yury.norov@gmail.com>
Acked-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Alexey Klimov <aklimov@redhat.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: David Sterba <dsterba@suse.com>
Cc: Dennis Zhou <dennis@kernel.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Jianpeng Ma <jianpeng.ma@intel.com>
Cc: Joe Perches <joe@perches.com>
Cc: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Rich Felker <dalias@libc.org>
Cc: Stefano Brivio <sbrivio@redhat.com>
Cc: Wei Yang <richard.weiyang@linux.alibaba.com>
Cc: Wolfram Sang <wsa+renesas@sang-engineering.com>
Cc: Yoshinori Sato <ysato@users.osdn.me>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
include/asm-generic/bitops/find.h
include/linux/bitops.h
lib/find_bit.c