diff options
| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-03-18 13:16:30 +1100 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-03-18 13:16:30 +1100 |
| commit | c71327ad9f925a4ddbf24db80ce66165104c4ed0 (patch) | |
| tree | a1560ddfb827d580843d2a32ba19fb0fc85490d8 /lib | |
| parent | f507cd22035fdadd5dbb476dd05e9e7ee21c3b84 (diff) | |
| parent | a4bd6a93c3f14691c8a29e53eb04dc734b27f0db (diff) | |
| download | linux-c71327ad9f925a4ddbf24db80ce66165104c4ed0.tar.gz linux-c71327ad9f925a4ddbf24db80ce66165104c4ed0.tar.bz2 linux-c71327ad9f925a4ddbf24db80ce66165104c4ed0.zip | |
Merge commit 'gcl/merge' into merge
Diffstat (limited to 'lib')
| -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); |