diff options
| author | Daniel P. Berrange <berrange@redhat.com> | 2017-08-04 11:50:36 +0100 |
|---|---|---|
| committer | Stefan Hajnoczi <stefanha@redhat.com> | 2017-08-07 09:39:35 +0100 |
| commit | f42cf447e2310e84e119b99f7f13c8dc7a6cf3d6 (patch) | |
| tree | 941e401b34cb90ef071fc219da469d841ceafaba /block | |
| parent | ac44ed2afb7c60255e989b163301479f5b4ecd04 (diff) | |
block: move trace probes into bdrv_co_preadv|pwritev
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>
Diffstat (limited to 'block')
| -rw-r--r-- | block/io.c | 8 | ||||
| -rw-r--r-- | block/trace-events | 4 |
2 files changed, 6 insertions, 6 deletions
diff --git a/block/io.c b/block/io.c index d9dc822173..26003814eb 100644 --- a/block/io.c +++ b/block/io.c @@ -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); } diff --git a/block/trace-events b/block/trace-events index 071a8d77ba..25dd5a3026 100644 --- a/block/trace-events +++ b/block/trace-events @@ -9,8 +9,8 @@ blk_co_preadv(void *blk, void *bs, int64_t offset, unsigned int bytes, int flags blk_co_pwritev(void *blk, void *bs, int64_t offset, unsigned int bytes, int flags) "blk %p bs %p offset %"PRId64" bytes %u flags 0x%x" # block/io.c -bdrv_co_readv(void *bs, int64_t sector_num, int nb_sector) "bs %p sector_num %"PRId64" nb_sectors %d" -bdrv_co_writev(void *bs, int64_t sector_num, int nb_sector) "bs %p sector_num %"PRId64" nb_sectors %d" +bdrv_co_preadv(void *bs, int64_t offset, int64_t nbytes, unsigned int flags) "bs %p offset %"PRId64" nbytes %"PRId64" flags 0x%x" +bdrv_co_pwritev(void *bs, int64_t offset, int64_t nbytes, unsigned int flags) "bs %p offset %"PRId64" nbytes %"PRId64" flags 0x%x" bdrv_co_pwrite_zeroes(void *bs, int64_t offset, int count, int flags) "bs %p offset %"PRId64" count %d flags 0x%x" bdrv_co_do_copy_on_readv(void *bs, int64_t offset, unsigned int bytes, int64_t cluster_offset, unsigned int cluster_bytes) "bs %p offset %"PRId64" bytes %u cluster_offset %"PRId64" cluster_bytes %u" |