From bf736fe34caba0688c9095c31b9d097ea15c1296 Mon Sep 17 00:00:00 2001 From: Kevin Wolf Date: Wed, 5 Jun 2013 15:17:55 +0200 Subject: blkdebug: Add BLKDBG_FLUSH_TO_OS/DISK events Signed-off-by: Kevin Wolf Signed-off-by: Stefan Hajnoczi --- block.c | 8 ++++---- block/blkdebug.c | 3 +++ include/block/block.h | 3 +++ 3 files changed, 10 insertions(+), 4 deletions(-) diff --git a/block.c b/block.c index 3f616de..79ad33d 100644 --- a/block.c +++ b/block.c @@ -3186,13 +3186,11 @@ int bdrv_load_vmstate(BlockDriverState *bs, uint8_t *buf, void bdrv_debug_event(BlockDriverState *bs, BlkDebugEvent event) { - BlockDriver *drv = bs->drv; - - if (!drv || !drv->bdrv_debug_event) { + if (!bs || !bs->drv || !bs->drv->bdrv_debug_event) { return; } - drv->bdrv_debug_event(bs, event); + bs->drv->bdrv_debug_event(bs, event); } int bdrv_debug_breakpoint(BlockDriverState *bs, const char *event, @@ -4024,6 +4022,7 @@ int coroutine_fn bdrv_co_flush(BlockDriverState *bs) } /* Write back cached data to the OS even with cache=unsafe */ + BLKDBG_EVENT(bs->file, BLKDBG_FLUSH_TO_OS); if (bs->drv->bdrv_co_flush_to_os) { ret = bs->drv->bdrv_co_flush_to_os(bs); if (ret < 0) { @@ -4036,6 +4035,7 @@ int coroutine_fn bdrv_co_flush(BlockDriverState *bs) goto flush_parent; } + BLKDBG_EVENT(bs->file, BLKDBG_FLUSH_TO_DISK); if (bs->drv->bdrv_co_flush_to_disk) { ret = bs->drv->bdrv_co_flush_to_disk(bs); } else if (bs->drv->bdrv_aio_flush) { diff --git a/block/blkdebug.c b/block/blkdebug.c index 71f99e4..ccb627a 100644 --- a/block/blkdebug.c +++ b/block/blkdebug.c @@ -182,6 +182,9 @@ static const char *event_names[BLKDBG_EVENT_MAX] = { [BLKDBG_CLUSTER_ALLOC] = "cluster_alloc", [BLKDBG_CLUSTER_ALLOC_BYTES] = "cluster_alloc_bytes", [BLKDBG_CLUSTER_FREE] = "cluster_free", + + [BLKDBG_FLUSH_TO_OS] = "flush_to_os", + [BLKDBG_FLUSH_TO_DISK] = "flush_to_disk", }; static int get_event_by_name(const char *name, BlkDebugEvent *event) diff --git a/include/block/block.h b/include/block/block.h index dc5b388..2307f67 100644 --- a/include/block/block.h +++ b/include/block/block.h @@ -424,6 +424,9 @@ typedef enum { BLKDBG_CLUSTER_ALLOC_BYTES, BLKDBG_CLUSTER_FREE, + BLKDBG_FLUSH_TO_OS, + BLKDBG_FLUSH_TO_DISK, + BLKDBG_EVENT_MAX, } BlkDebugEvent; -- cgit v1.1