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authorPaolo Bonzini <pbonzini@redhat.com>2013-09-04 19:00:20 +0200
committerStefan Hajnoczi <stefanha@redhat.com>2013-09-06 15:25:08 +0200
commite641c1e81e54fc14908ff6785ef7d51e42c2e1bb (patch)
tree4f2f526c2a0b502b391953078d0e1232f732f424 /block/cow.c
parent26ae980492920e417bc91761cc85950f18e41f85 (diff)
cow: do not call bdrv_co_is_allocated
As we change bdrv_is_allocated to gather more information from bs and bs->file, it will become a bit slower. It is still appropriate for online jobs, but not for reads/writes. Call the internal function instead. Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'block/cow.c')
-rw-r--r--block/cow.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/block/cow.c b/block/cow.c
index cd889e6512..f4eca10e3f 100644
--- a/block/cow.c
+++ b/block/cow.c
@@ -212,7 +212,7 @@ static int coroutine_fn cow_read(BlockDriverState *bs, int64_t sector_num,
int ret, n;
while (nb_sectors > 0) {
- if (bdrv_co_is_allocated(bs, sector_num, nb_sectors, &n)) {
+ if (cow_co_is_allocated(bs, sector_num, nb_sectors, &n)) {
ret = bdrv_pread(bs->file,
s->cow_sectors_offset + sector_num * 512,
buf, n * 512);