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| author | Paolo Bonzini <pbonzini@redhat.com> | 2013-09-04 19:00:20 +0200 |
|---|---|---|
| committer | Stefan Hajnoczi <stefanha@redhat.com> | 2013-09-06 15:25:08 +0200 |
| commit | e641c1e81e54fc14908ff6785ef7d51e42c2e1bb (patch) | |
| tree | 4f2f526c2a0b502b391953078d0e1232f732f424 /block/cow.c | |
| parent | 26ae980492920e417bc91761cc85950f18e41f85 (diff) | |
| download | qemu-e641c1e81e54fc14908ff6785ef7d51e42c2e1bb.tar.gz | |
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.c | 2 |
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); |