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trace: Trace posix-aio-compat.c completion and cancellation

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This patch adds paio_complete() and paio_cancel() trace events to
complement the paio_submit() event.

Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
This commit is contained in:
Stefan Hajnoczi 2011-03-07 08:06:10 +00:00
parent a13aac04e1
commit ddca9fb2b5
2 changed files with 7 additions and 0 deletions
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5
posix-aio-compat.c
View File

@ -455,6 +455,9 @@ static int posix_aio_process_queue(void *opaque)
} else { } else {
ret = -ret; ret = -ret;
} }
trace_paio_complete(acb, acb->common.opaque, ret);
/* remove the request */ /* remove the request */
*pacb = acb->next; *pacb = acb->next;
/* call the callback */ /* call the callback */
@ -537,6 +540,8 @@ static void paio_cancel(BlockDriverAIOCB *blockacb)
struct qemu_paiocb *acb = (struct qemu_paiocb *)blockacb; struct qemu_paiocb *acb = (struct qemu_paiocb *)blockacb;
int active = 0; int active = 0;
trace_paio_cancel(acb, acb->common.opaque);
mutex_lock(&lock); mutex_lock(&lock);
if (!acb->active) { if (!acb->active) {
QTAILQ_REMOVE(&request_list, acb, node); QTAILQ_REMOVE(&request_list, acb, node);

2
trace-events
View File

@ -62,6 +62,8 @@ disable virtio_blk_handle_write(void *req, uint64_t sector, size_t nsectors) "re
# posix-aio-compat.c # posix-aio-compat.c
disable paio_submit(void *acb, void *opaque, int64_t sector_num, int nb_sectors, int type) "acb %p opaque %p sector_num %"PRId64" nb_sectors %d type %d" disable paio_submit(void *acb, void *opaque, int64_t sector_num, int nb_sectors, int type) "acb %p opaque %p sector_num %"PRId64" nb_sectors %d type %d"
disable paio_complete(void *acb, void *opaque, int ret) "acb %p opaque %p ret %d"
disable paio_cancel(void *acb, void *opaque) "acb %p opaque %p"
# ioport.c # ioport.c
disable cpu_in(unsigned int addr, unsigned int val) "addr %#x value %u" disable cpu_in(unsigned int addr, unsigned int val) "addr %#x value %u"