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Go Back   Linux Archive > Redhat > Device-mapper Development

 
 
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Old 09-26-2012, 09:45 AM
Wei Yongjun
 
Default dm persistent data: convert to use le32_add_cpu()

From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>

Convert cpu_to_le32(le32_to_cpu(E1) + E2) to use le32_add_cpu().

dpatch engine is used to auto generate this patch.
(https://github.com/weiyj/dpatch)

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
---
drivers/md/persistent-data/dm-space-map-common.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/md/persistent-data/dm-space-map-common.c b/drivers/md/persistent-data/dm-space-map-common.c
index d77602d..f3a9af8 100644
--- a/drivers/md/persistent-data/dm-space-map-common.c
+++ b/drivers/md/persistent-data/dm-space-map-common.c
@@ -434,14 +434,14 @@ int sm_ll_insert(struct ll_disk *ll, dm_block_t b,
if (ref_count && !old) {
*ev = SM_ALLOC;
ll->nr_allocated++;
- ie_disk.nr_free = cpu_to_le32(le32_to_cpu(ie_disk.nr_free) - 1);
+ le32_add_cpu(&ie_disk.nr_free, -1);
if (le32_to_cpu(ie_disk.none_free_before) == bit)
ie_disk.none_free_before = cpu_to_le32(bit + 1);

} else if (old && !ref_count) {
*ev = SM_FREE;
ll->nr_allocated--;
- ie_disk.nr_free = cpu_to_le32(le32_to_cpu(ie_disk.nr_free) + 1);
+ le32_add_cpu(&ie_disk.nr_free, 1);
ie_disk.none_free_before = cpu_to_le32(min(le32_to_cpu(ie_disk.none_free_befo re), bit));
}



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