diff options
| author | Denis V. Lunev | 2022-05-30 12:39:29 +0200 |
|---|---|---|
| committer | Vladimir Sementsov-Ogievskiy | 2022-06-29 09:57:02 +0200 |
| commit | 8bb100c9e2dc1fe0e33283b0c43252dbaf4eb71b (patch) | |
| tree | 50ad16f1f7a33346cf1e43825ba400b7d4b436bb /block/trace-events | |
| parent | iotests: copy-before-write: add cases for cbw-timeout option (diff) | |
| download | qemu-8bb100c9e2dc1fe0e33283b0c43252dbaf4eb71b.tar.gz qemu-8bb100c9e2dc1fe0e33283b0c43252dbaf4eb71b.tar.xz qemu-8bb100c9e2dc1fe0e33283b0c43252dbaf4eb71b.zip | |
nbd: trace long NBD operations
At the moment there are 2 sources of lengthy operations if configured:
* open connection, which could retry inside and
* reconnect of already opened connection
These operations could be quite lengthy and cumbersome to catch thus
it would be quite natural to add trace points for them.
This patch is based on the original downstream work made by Vladimir.
Signed-off-by: Denis V. Lunev <den@openvz.org>
CC: Eric Blake <eblake@redhat.com>
CC: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
CC: Kevin Wolf <kwolf@redhat.com>
CC: Hanna Reitz <hreitz@redhat.com>
CC: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Diffstat (limited to 'block/trace-events')
| -rw-r--r-- | block/trace-events | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/block/trace-events b/block/trace-events index 549090d453..48dbf10c66 100644 --- a/block/trace-events +++ b/block/trace-events @@ -172,6 +172,8 @@ nbd_read_reply_entry_fail(int ret, const char *err) "ret = %d, err: %s" nbd_co_request_fail(uint64_t from, uint32_t len, uint64_t handle, uint16_t flags, uint16_t type, const char *name, int ret, const char *err) "Request failed { .from = %" PRIu64", .len = %" PRIu32 ", .handle = %" PRIu64 ", .flags = 0x%" PRIx16 ", .type = %" PRIu16 " (%s) } ret = %d, err: %s" nbd_client_handshake(const char *export_name) "export '%s'" nbd_client_handshake_success(const char *export_name) "export '%s'" +nbd_reconnect_attempt(unsigned in_flight) "in_flight %u" +nbd_reconnect_attempt_result(int ret, unsigned in_flight) "ret %d in_flight %u" # ssh.c ssh_restart_coroutine(void *co) "co=%p" |