From 93f9f77f24c7b79e26a4b836191259c1469a9163 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Thu, 12 Mar 2009 19:32:51 -0700 Subject: [PATCH] --- yaml --- r: 132256 b: refs/heads/master c: aa8e4fc68d8024cd3132035d13c3cefa7baeac8f h: refs/heads/master v: v3 --- [refs] | 2 +- trunk/lib/bitmap.c | 16 ++++++++-------- 2 files changed, 9 insertions(+), 9 deletions(-) diff --git a/[refs] b/[refs] index bcb925f99cfd..e8323c2252c6 100644 --- a/[refs] +++ b/[refs] @@ -1,2 +1,2 @@ --- -refs/heads/master: 9ead64974b05501bbac0d63a47c99fa786d064ba +refs/heads/master: aa8e4fc68d8024cd3132035d13c3cefa7baeac8f diff --git a/trunk/lib/bitmap.c b/trunk/lib/bitmap.c index 1338469ac849..35a1f7ff4149 100644 --- a/trunk/lib/bitmap.c +++ b/trunk/lib/bitmap.c @@ -948,15 +948,15 @@ static int __reg_op(unsigned long *bitmap, int pos, int order, int reg_op) */ 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);