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authorIngo Molnar <mingo@elte.hu>2009-03-26 18:49:48 +0100
committerIngo Molnar <mingo@elte.hu>2009-03-26 18:49:48 +0100
commit18ffa418aead13c56515ac74cd26105102128aca (patch)
tree2096ea8db3b2594bd25ad39a70edc691219f669b /lib/bitmap.c
parentab76f3d771590d5c89faa3219559c5d3fc0ce0c2 (diff)
parent8e0ee43bc2c3e19db56a4adaa9a9b04ce885cd84 (diff)
Merge commit 'v2.6.29' into x86/setup-lzma
Diffstat (limited to 'lib/bitmap.c')
-rw-r--r--lib/bitmap.c16
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);