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| author | Matthew Wilcox <mawilcox@microsoft.com> | 2017-07-11 00:51:29 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-07-11 01:32:34 +0200 |
| commit | e5af323c9badd5dc09af7ccf9d45616ebffc623c (patch) | |
| tree | da5f5087eb7c2eb2c5953bd34e5facc714de9d67 /lib/test_bitmap.c | |
| parent | lib/test_bitmap.c: add optimisation tests (diff) | |
| download | linux-e5af323c9badd5dc09af7ccf9d45616ebffc623c.tar.xz linux-e5af323c9badd5dc09af7ccf9d45616ebffc623c.zip | |
bitmap: optimise bitmap_set and bitmap_clear of a single bit
We have eight users calling bitmap_clear for a single bit and seventeen
calling bitmap_set for a single bit. Rather than fix all of them to
call __clear_bit or __set_bit, turn bitmap_clear and bitmap_set into
inline functions and make this special case efficient.
Link: http://lkml.kernel.org/r/20170628153221.11322-3-willy@infradead.org
Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
Acked-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to '')
| -rw-r--r-- | lib/test_bitmap.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/lib/test_bitmap.c b/lib/test_bitmap.c index 252d3bddbe7d..2526a2975c51 100644 --- a/lib/test_bitmap.c +++ b/lib/test_bitmap.c @@ -333,9 +333,6 @@ static void __init test_bitmap_u32_array_conversions(void) } } -#define __bitmap_set(a, b, c) bitmap_set(a, b, c) -#define __bitmap_clear(a, b, c) bitmap_clear(a, b, c) - static void noinline __init test_mem_optimisations(void) { DECLARE_BITMAP(bmap1, 1024); |