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| author | Dan Williams <dan.j.williams@intel.com> | 2009-04-08 14:28:13 -0700 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2009-04-08 14:28:13 -0700 |
| commit | fd74ea65883c7e6903e9b652795f72b723a2be69 (patch) | |
| tree | 0792ad598080eae201d2836ac3c5a8fc46d0d03e /lib/bitmap.c | |
| parent | c8f517c444e4f9f55b5b5ca202b8404691a35805 (diff) | |
| parent | 8c6db1bbf80123839ec87bdd6cb364aea384623d (diff) | |
| download | kernel-crypto-fd74ea65883c7e6903e9b652795f72b723a2be69.tar.gz kernel-crypto-fd74ea65883c7e6903e9b652795f72b723a2be69.tar.xz kernel-crypto-fd74ea65883c7e6903e9b652795f72b723a2be69.zip | |
Merge branch 'dmaengine' into async-tx-raid6
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 1338469ac84..35a1f7ff414 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); |