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block: move trace probes into bdrv_co_preadv|pwritev

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There are trace probes in bdrv_co_readv|writev, however, the
block drivers are being gradually moved over to using the
bdrv_co_preadv|pwritev functions instead. As a result some
block drivers miss the current probes. Move the probes
into bdrv_co_preadv|pwritev instead, so that they are triggered
by more (all?) I/O code paths.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-id: 20170804105036.11879-1-berrange@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Daniel P. Berrange 2017-08-04 11:50:36 +01:00 • committed by Stefan Hajnoczi
parent ac44ed2afb
commit f42cf447e2
2 changed files with 6 additions and 6 deletions
Download patch file Download diff file Expand all files Collapse all files

8
block/io.c
View file

@ -1135,6 +1135,8 @@ int coroutine_fn bdrv_co_preadv(BdrvChild *child,
bool use_local_qiov = false;
int ret;
trace_bdrv_co_preadv(child->bs, offset, bytes, flags);
if (!drv) {
return -ENOMEDIUM;
}
@ -1207,8 +1209,6 @@ static int coroutine_fn bdrv_co_do_readv(BdrvChild *child,
int coroutine_fn bdrv_co_readv(BdrvChild *child, int64_t sector_num,
int nb_sectors, QEMUIOVector *qiov)
{
trace_bdrv_co_readv(child->bs, sector_num, nb_sectors);
return bdrv_co_do_readv(child, sector_num, nb_sectors, qiov, 0);
}
@ -1526,6 +1526,8 @@ int coroutine_fn bdrv_co_pwritev(BdrvChild *child,
bool use_local_qiov = false;
int ret;
trace_bdrv_co_pwritev(child->bs, offset, bytes, flags);
if (!bs->drv) {
return -ENOMEDIUM;
}
@ -1660,8 +1662,6 @@ static int coroutine_fn bdrv_co_do_writev(BdrvChild *child,
int coroutine_fn bdrv_co_writev(BdrvChild *child, int64_t sector_num,
int nb_sectors, QEMUIOVector *qiov)
{
trace_bdrv_co_writev(child->bs, sector_num, nb_sectors);
return bdrv_co_do_writev(child, sector_num, nb_sectors, qiov, 0);
}