diff options
author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-03-24 13:38:30 +1100 |
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committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-03-24 13:38:30 +1100 |
commit | 9e41d9597e7825ec20d690013d32bcec5f3fe16a (patch) | |
tree | ac6fea59e9a4a1c2183d6bbd6ffa760680673afb /lib/bitmap.c | |
parent | 77ecfe8d427f554fabbf258e9d789f1d4c3afd63 (diff) | |
parent | 8e0ee43bc2c3e19db56a4adaa9a9b04ce885cd84 (diff) |
Merge commit 'origin/master' into next
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); |