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author | Ingo Molnar <mingo@elte.hu> | 2009-03-17 16:21:20 +0100 |
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committer | Ingo Molnar <mingo@elte.hu> | 2009-03-17 16:21:20 +0100 |
commit | 47239561e39bceefecc3cd67f71fcf86a198a8ff (patch) | |
tree | 9823d0973494ea8acabb744bc3aba42b610fb434 /lib/bitmap.c | |
parent | ed681a91ab805341675d166a9592551093c0a2d9 (diff) | |
parent | 5bee17f18b595937e6beafeee5197868a3f74a06 (diff) | |
download | lwn-47239561e39bceefecc3cd67f71fcf86a198a8ff.tar.gz lwn-47239561e39bceefecc3cd67f71fcf86a198a8ff.zip |
Merge branch 'linus' into core/printk
Diffstat (limited to 'lib/bitmap.c')
-rw-r--r-- | lib/bitmap.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/lib/bitmap.c b/lib/bitmap.c index 1338469ac849..35a1f7ff4149 100644 --- a/lib/bitmap.c +++ b/lib/bitmap.c @@ -948,15 +948,15 @@ done: */ int bitmap_find_free_region(unsigned long *bitmap, int bits, int order) { - int pos; /* scans bitmap by regions of size order */ + int pos, end; /* scans bitmap by regions of size order */ - for (pos = 0; pos < bits; pos += (1 << order)) - if (__reg_op(bitmap, pos, order, REG_OP_ISFREE)) - break; - if (pos == bits) - return -ENOMEM; - __reg_op(bitmap, pos, order, REG_OP_ALLOC); - return pos; + for (pos = 0 ; (end = pos + (1 << order)) <= bits; pos = end) { + if (!__reg_op(bitmap, pos, order, REG_OP_ISFREE)) + continue; + __reg_op(bitmap, pos, order, REG_OP_ALLOC); + return pos; + } + return -ENOMEM; } EXPORT_SYMBOL(bitmap_find_free_region); |