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authorFam Zheng <famz@redhat.com>2015-11-09 18:16:46 +0800
committerKevin Wolf <kwolf@redhat.com>2015-11-12 16:22:08 +0100
commitebde595ce63369921dbbe1bd16fec0b230050d67 (patch)
treedf7f0e6407464b7d3abc81ace40a8f201fa3396b
parent17e50a72a3aade0eddfebc012a5d7bdd40a03573 (diff)
block: Add more types for tracked request
We'll track more request types besides read and write, change the boolean field to an enum. Signed-off-by: Fam Zheng <famz@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Message-id: 1447064214-29930-2-git-send-email-famz@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
-rw-r--r--block/io.c9
-rw-r--r--include/block/block_int.h10
2 files changed, 14 insertions, 5 deletions
diff --git a/block/io.c b/block/io.c
index 8dcad3b3fe..793809a2dc 100644
--- a/block/io.c
+++ b/block/io.c
@@ -348,13 +348,14 @@ static void tracked_request_end(BdrvTrackedRequest *req)
static void tracked_request_begin(BdrvTrackedRequest *req,
BlockDriverState *bs,
int64_t offset,
- unsigned int bytes, bool is_write)
+ unsigned int bytes,
+ enum BdrvTrackedRequestType type)
{
*req = (BdrvTrackedRequest){
.bs = bs,
.offset = offset,
.bytes = bytes,
- .is_write = is_write,
+ .type = type,
.co = qemu_coroutine_self(),
.serialising = false,
.overlap_offset = offset,
@@ -971,7 +972,7 @@ static int coroutine_fn bdrv_co_do_preadv(BlockDriverState *bs,
bytes = ROUND_UP(bytes, align);
}
- tracked_request_begin(&req, bs, offset, bytes, false);
+ tracked_request_begin(&req, bs, offset, bytes, BDRV_TRACKED_READ);
ret = bdrv_aligned_preadv(bs, &req, offset, bytes, align,
use_local_qiov ? &local_qiov : qiov,
flags);
@@ -1292,7 +1293,7 @@ static int coroutine_fn bdrv_co_do_pwritev(BlockDriverState *bs,
* Pad qiov with the read parts and be sure to have a tracked request not
* only for bdrv_aligned_pwritev, but also for the reads of the RMW cycle.
*/
- tracked_request_begin(&req, bs, offset, bytes, true);
+ tracked_request_begin(&req, bs, offset, bytes, BDRV_TRACKED_WRITE);
if (!qiov) {
ret = bdrv_co_do_zero_pwritev(bs, offset, bytes, flags, &req);
diff --git a/include/block/block_int.h b/include/block/block_int.h
index 603145a21d..ac034069ff 100644
--- a/include/block/block_int.h
+++ b/include/block/block_int.h
@@ -60,11 +60,19 @@
#define BLOCK_PROBE_BUF_SIZE 512
+enum BdrvTrackedRequestType {
+ BDRV_TRACKED_READ,
+ BDRV_TRACKED_WRITE,
+ BDRV_TRACKED_FLUSH,
+ BDRV_TRACKED_IOCTL,
+ BDRV_TRACKED_DISCARD,
+};
+
typedef struct BdrvTrackedRequest {
BlockDriverState *bs;
int64_t offset;
unsigned int bytes;
- bool is_write;
+ enum BdrvTrackedRequestType type;
bool serialising;
int64_t overlap_offset;