diff options
| author | Michael Tokarev <mjt@tls.msk.ru> | 2012-03-10 16:54:23 +0400 |
|---|---|---|
| committer | Michael Tokarev <mjt@tls.msk.ru> | 2012-06-11 23:07:44 +0400 |
| commit | 3d9b49254f893f2a3739400e536de25db1cdc5f9 (patch) | |
| tree | 3d08dfabe658baba0b89a5ba675d903c3cdbbcb6 /block/qcow2.c | |
| parent | 2278a69e7020d86a8c73a28474e7709d3e7d5081 (diff) | |
| download | qemu-3d9b49254f893f2a3739400e536de25db1cdc5f9.tar.gz | |
consolidate qemu_iovec_memset{,_skip}() into single function and use existing iov_memset()
This patch combines two functions into one, and replaces
the implementation with already existing iov_memset() from
iov.c.
The new prototype of qemu_iovec_memset():
size_t qemu_iovec_memset(qiov, size_t offset, int fillc, size_t bytes)
It is different from former qemu_iovec_memset_skip(), and
I want to make other functions to be consistent with it
too: first how much to skip, second what, and 3rd how many
of it. It also returns actual number of bytes filled in,
which may be less than the requested `bytes' if qiov is
smaller than offset+bytes, in the same way iov_memset()
does.
While at it, use utility function iov_memset() from
iov.h in posix-aio-compat.c, where qiov was used.
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Diffstat (limited to 'block/qcow2.c')
| -rw-r--r-- | block/qcow2.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/block/qcow2.c b/block/qcow2.c index c2e49cded3..fcbf95273b 100644 --- a/block/qcow2.c +++ b/block/qcow2.c @@ -510,7 +510,7 @@ int qcow2_backing_read1(BlockDriverState *bs, QEMUIOVector *qiov, else n1 = bs->total_sectors - sector_num; - qemu_iovec_memset_skip(qiov, 0, 512 * (nb_sectors - n1), 512 * n1); + qemu_iovec_memset(qiov, 512 * n1, 0, 512 * (nb_sectors - n1)); return n1; } @@ -571,7 +571,7 @@ static coroutine_fn int qcow2_co_readv(BlockDriverState *bs, int64_t sector_num, } } else { /* Note: in this case, no need to wait */ - qemu_iovec_memset(&hd_qiov, 0, 512 * cur_nr_sectors); + qemu_iovec_memset(&hd_qiov, 0, 0, 512 * cur_nr_sectors); } break; @@ -580,7 +580,7 @@ static coroutine_fn int qcow2_co_readv(BlockDriverState *bs, int64_t sector_num, ret = -EIO; goto fail; } - qemu_iovec_memset(&hd_qiov, 0, 512 * cur_nr_sectors); + qemu_iovec_memset(&hd_qiov, 0, 0, 512 * cur_nr_sectors); break; case QCOW2_CLUSTER_COMPRESSED: |