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Go Back   Linux Archive > Redhat > Device-mapper Development

 
 
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Old 05-12-2010, 01:29 AM
Tomohiro Kusumi
 
Default fix hard-coded disk header chunk size for persistent snapshot

Hi,

This patch fixes hard-coded value for the size of a chunk that includes
disk header for persistent snapshot. It should be changed to existing
macro NUM_SNAPSHOT_HDR_CHUNKS instead of using hard-coded value 1.

Thanks,
Tomohiro Kusumi


Signed-off-by: Tomohiro Kusumi <kusumi.tomohiro@jp.fujitsu.com>
---

diff -aNur linux-2.6.34-rc7.org/drivers/md/dm-snap-persistent.c linux-2.6.34-rc7/drivers/md/dm-snap-persistent.c
--- linux-2.6.34-rc7.org/drivers/md/dm-snap-persistent.c 2010-05-10 10:36:28.000000000 +0900
+++ linux-2.6.34-rc7/drivers/md/dm-snap-persistent.c 2010-05-12 09:21:50.000000000 +0900
@@ -266,7 +266,7 @@
*/
static chunk_t area_location(struct pstore *ps, chunk_t area)
{
- return 1 + ((ps->exceptions_per_area + 1) * area);
+ return NUM_SNAPSHOT_HDR_CHUNKS + ((ps->exceptions_per_area + 1) * area);
}

/*

--
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