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qcow2: add tracepoints for qcow2_co_write_zeroes 

This patch follows guidelines of all other tracepoints in qcow2, like ones
in qcow2_co_writev. I think that they should dump values in the same
quantities or be changed all together.

Signed-off-by: Denis V. Lunev <den@openvz.org>
CC: Eric Blake <eblake@redhat.com>
CC: Kevin Wolf <kwolf@redhat.com>
Message-Id: <1463476543-3087-4-git-send-email-den@openvz.org>
[eblake: typo fix in commit message]
Signed-off-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
master
Denis V. Lunev 2016-05-25 21:48:47 -06:00 committed by Kevin Wolf
parent ba142846b0
commit 5a64e94251
2 changed files with 7 additions and 0 deletions
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5
block/qcow2.c
View File

@ -2437,6 +2437,9 @@ static coroutine_fn int qcow2_co_write_zeroes(BlockDriverState *bs,
int head = sector_num % s->cluster_sectors;
int tail = (sector_num + nb_sectors) % s->cluster_sectors;
trace_qcow2_write_zeroes_start_req(qemu_coroutine_self(), sector_num,
nb_sectors);
if (head != 0 || tail != 0) {
int64_t cl_start = sector_num - head;
@ -2459,6 +2462,8 @@ static coroutine_fn int qcow2_co_write_zeroes(BlockDriverState *bs,
qemu_co_mutex_lock(&s->lock);
}
trace_qcow2_write_zeroes(qemu_coroutine_self(), sector_num, nb_sectors);
/* Whatever is left can use real zero clusters */
ret = qcow2_zero_clusters(bs, sector_num << BDRV_SECTOR_BITS, nb_sectors);
qemu_co_mutex_unlock(&s->lock);

2
trace-events
View File

@ -611,6 +611,8 @@ qcow2_writev_done_req(void *co, int ret) "co %p ret %d"
qcow2_writev_start_part(void *co) "co %p"
qcow2_writev_done_part(void *co, int cur_nr_sectors) "co %p cur_nr_sectors %d"
qcow2_writev_data(void *co, uint64_t offset) "co %p offset %" PRIx64
qcow2_write_zeroes_start_req(void *co, int64_t sector, int nb_sectors) "co %p sector %" PRIx64 " nb_sectors %d"
qcow2_write_zeroes(void *co, int64_t sector, int nb_sectors) "co %p sector %" PRIx64 " nb_sectors %d"
# block/qcow2-cluster.c
qcow2_alloc_clusters_offset(void *co, uint64_t offset, int num) "co %p offset %" PRIx64 " num %d"