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[Qemu-devel] [PATCH 4/5] exec: replace ffsl with ctzl
From: |
Natanael Copa |
Subject: |
[Qemu-devel] [PATCH 4/5] exec: replace ffsl with ctzl |
Date: |
Tue, 29 Apr 2014 16:17:30 +0200 |
See commit fbeadf50 (bitops: unify bitops_ffsl with the one in
host-utils.h, call it bitops_ctzl) on why ctzl should be used instead
of ffsl.
This is also needed for musl libc which does not implement ffsl.
Signed-off-by: Natanael Copa <address@hidden>
---
include/exec/ram_addr.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/exec/ram_addr.h b/include/exec/ram_addr.h
index 2edfa96..b94de02 100644
--- a/include/exec/ram_addr.h
+++ b/include/exec/ram_addr.h
@@ -117,7 +117,7 @@ static inline void
cpu_physical_memory_set_dirty_lebitmap(unsigned long *bitmap,
if (bitmap[i] != 0) {
c = leul_to_cpu(bitmap[i]);
do {
- j = ffsl(c) - 1;
+ j = ctzl(c);
c &= ~(1ul << j);
page_number = (i * HOST_LONG_BITS + j) * hpratio;
addr = page_number * TARGET_PAGE_SIZE;
--
1.9.2