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[Qemu-block] [PATCH v2 05/14] block: Make blk_co_preadv/pwritev() public
From: |
Kevin Wolf |
Subject: |
[Qemu-block] [PATCH v2 05/14] block: Make blk_co_preadv/pwritev() public |
Date: |
Tue, 24 May 2016 15:47:25 +0200 |
Also add trace points now that the function can be directly called.
Signed-off-by: Kevin Wolf <address@hidden>
---
block/block-backend.c | 21 ++++++++++++++-------
include/sysemu/block-backend.h | 6 ++++++
trace-events | 4 ++++
3 files changed, 24 insertions(+), 7 deletions(-)
diff --git a/block/block-backend.c b/block/block-backend.c
index 7257d7b..47e22ed 100644
--- a/block/block-backend.c
+++ b/block/block-backend.c
@@ -19,6 +19,7 @@
#include "sysemu/sysemu.h"
#include "qapi-event.h"
#include "qemu/id.h"
+#include "trace.h"
/* Number of coroutines to reserve per attached device model */
#define COROUTINE_POOL_RESERVATION 64
@@ -741,11 +742,15 @@ static int blk_check_request(BlockBackend *blk, int64_t
sector_num,
nb_sectors * BDRV_SECTOR_SIZE);
}
-static int coroutine_fn blk_co_preadv(BlockBackend *blk, int64_t offset,
- unsigned int bytes, QEMUIOVector *qiov,
- BdrvRequestFlags flags)
+int coroutine_fn blk_co_preadv(BlockBackend *blk, int64_t offset,
+ unsigned int bytes, QEMUIOVector *qiov,
+ BdrvRequestFlags flags)
{
- int ret = blk_check_byte_request(blk, offset, bytes);
+ int ret;
+
+ trace_blk_co_preadv(blk, blk_bs(blk), offset, bytes, flags);
+
+ ret = blk_check_byte_request(blk, offset, bytes);
if (ret < 0) {
return ret;
}
@@ -758,12 +763,14 @@ static int coroutine_fn blk_co_preadv(BlockBackend *blk,
int64_t offset,
return bdrv_co_preadv(blk_bs(blk), offset, bytes, qiov, flags);
}
-static int coroutine_fn blk_co_pwritev(BlockBackend *blk, int64_t offset,
- unsigned int bytes, QEMUIOVector *qiov,
- BdrvRequestFlags flags)
+int coroutine_fn blk_co_pwritev(BlockBackend *blk, int64_t offset,
+ unsigned int bytes, QEMUIOVector *qiov,
+ BdrvRequestFlags flags)
{
int ret;
+ trace_blk_co_pwritev(blk, blk_bs(blk), offset, bytes, flags);
+
ret = blk_check_byte_request(blk, offset, bytes);
if (ret < 0) {
return ret;
diff --git a/include/sysemu/block-backend.h b/include/sysemu/block-backend.h
index 9d6615c..f2de8ac 100644
--- a/include/sysemu/block-backend.h
+++ b/include/sysemu/block-backend.h
@@ -113,6 +113,12 @@ void *blk_get_attached_dev(BlockBackend *blk);
void blk_set_dev_ops(BlockBackend *blk, const BlockDevOps *ops, void *opaque);
int blk_pread_unthrottled(BlockBackend *blk, int64_t offset, uint8_t *buf,
int count);
+int coroutine_fn blk_co_preadv(BlockBackend *blk, int64_t offset,
+ unsigned int bytes, QEMUIOVector *qiov,
+ BdrvRequestFlags flags);
+int coroutine_fn blk_co_pwritev(BlockBackend *blk, int64_t offset,
+ unsigned int bytes, QEMUIOVector *qiov,
+ BdrvRequestFlags flags);
int blk_write_zeroes(BlockBackend *blk, int64_t offset,
int count, BdrvRequestFlags flags);
BlockAIOCB *blk_aio_write_zeroes(BlockBackend *blk, int64_t offset,
diff --git a/trace-events b/trace-events
index b53c354..5d431bd 100644
--- a/trace-events
+++ b/trace-events
@@ -61,6 +61,10 @@ virtio_console_chr_event(unsigned int port, int event) "port
%u, event %d"
bdrv_open_common(void *bs, const char *filename, int flags, const char
*format_name) "bs %p filename \"%s\" flags %#x format_name \"%s\""
bdrv_lock_medium(void *bs, bool locked) "bs %p locked %d"
+# block/block-backend.c
+blk_co_preadv(void *blk, void *bs, int64_t offset, unsigned int bytes, int
flags) "blk %p bs %p offset %"PRId64" bytes %u flags %x"
+blk_co_pwritev(void *blk, void *bs, int64_t offset, unsigned int bytes, int
flags) "blk %p bs %p offset %"PRId64" bytes %u flags %x"
+
# block/io.c
bdrv_aio_discard(void *bs, int64_t sector_num, int nb_sectors, void *opaque)
"bs %p sector_num %"PRId64" nb_sectors %d opaque %p"
bdrv_aio_flush(void *bs, void *opaque) "bs %p opaque %p"
--
1.8.3.1
- Re: [Qemu-block] [PATCH v2 02/14] block: Cancel jobs first in bdrv_close_all(), (continued)
- [Qemu-block] [PATCH v2 03/14] block: Default to enabled write cache in blk_new(), Kevin Wolf, 2016/05/24
- [Qemu-block] [PATCH v2 01/14] block: keep a list of block jobs, Kevin Wolf, 2016/05/24
- [Qemu-block] [PATCH v2 04/14] block: Convert block job core to BlockBackend, Kevin Wolf, 2016/05/24
- [Qemu-block] [PATCH v2 09/14] backup: Don't leak BackupBlockJob in error path, Kevin Wolf, 2016/05/24
- [Qemu-block] [PATCH v2 07/14] mirror: Allow target that already has a BlockBackend, Kevin Wolf, 2016/05/24
- [Qemu-block] [PATCH v2 05/14] block: Make blk_co_preadv/pwritev() public,
Kevin Wolf <=
- [Qemu-block] [PATCH v2 08/14] mirror: Use BlockBackend for I/O, Kevin Wolf, 2016/05/24
- [Qemu-block] [PATCH v2 06/14] stream: Use BlockBackend for I/O, Kevin Wolf, 2016/05/24