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| author | Andi Kleen <andi@firstfloor.org> | 2010-01-15 17:01:17 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-01-16 12:15:38 -0800 |
| commit | 5dab600e6a153ceb64832f608069e6c08185411a (patch) | |
| tree | 866d05be2255bd4f0c146534741b10c60afe9b79 /kernel/kfifo.c | |
| parent | d994ffc247f7c4a48b848f10c4c01c9b06411ada (diff) | |
| download | lwn-5dab600e6a153ceb64832f608069e6c08185411a.tar.gz lwn-5dab600e6a153ceb64832f608069e6c08185411a.zip | |
kfifo: document everywhere that size has to be power of two
On my first try using them I missed that the fifos need to be power of
two, resulting in a runtime bug. Document that requirement everywhere
(and fix one grammar bug)
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Stefani Seibold <stefani@seibold.net>
Cc: Roland Dreier <rdreier@cisco.com>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Andy Walls <awalls@radix.net>
Cc: Vikram Dhillon <dhillonv10@gmail.com>
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 | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/kfifo.c b/kernel/kfifo.c index 7384f120be87..32c5c15d750d 100644 --- a/kernel/kfifo.c +++ b/kernel/kfifo.c @@ -41,7 +41,7 @@ static void _kfifo_init(struct kfifo *fifo, void *buffer, * kfifo_init - initialize a FIFO using a preallocated buffer * @fifo: the fifo to assign the buffer * @buffer: the preallocated buffer to be used. - * @size: the size of the internal buffer, this have to be a power of 2. + * @size: the size of the internal buffer, this has to be a power of 2. * */ void kfifo_init(struct kfifo *fifo, void *buffer, unsigned int size) |