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| author | Robert P. J. Day | 2009-06-17 00:33:34 +0200 |
|---|---|---|
| committer | Linus Torvalds | 2009-06-17 04:47:47 +0200 |
| commit | b33112d1cc25e658c334125d127a6ae15d5a0ad6 (patch) | |
| tree | a09dc0715c317198caf868010a6e10f67bf939c2 /kernel/kfifo.c | |
| parent | atomic: only take lock when the counter drops to zero on UP as well (diff) | |
| download | kernel-qcow2-linux-b33112d1cc25e658c334125d127a6ae15d5a0ad6.tar.gz kernel-qcow2-linux-b33112d1cc25e658c334125d127a6ae15d5a0ad6.tar.xz kernel-qcow2-linux-b33112d1cc25e658c334125d127a6ae15d5a0ad6.zip | |
kernel/kfifo.c: replace conditional test with is_power_of_2()
Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/kfifo.c')
| -rw-r--r-- | kernel/kfifo.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/kfifo.c b/kernel/kfifo.c index bc41ad0f24f8..26539e3228e5 100644 --- a/kernel/kfifo.c +++ b/kernel/kfifo.c @@ -72,9 +72,9 @@ struct kfifo *kfifo_alloc(unsigned int size, gfp_t gfp_mask, spinlock_t *lock) /* * round up to the next power of 2, since our 'let the indices - * wrap' tachnique works only in this case. + * wrap' technique works only in this case. */ - if (size & (size - 1)) { + if (!is_power_of_2(size)) { BUG_ON(size > 0x80000000); size = roundup_pow_of_two(size); } |