diff options
| author | Kevin Wolf <kwolf@redhat.com> | 2016-03-18 19:01:41 +0100 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2016-03-30 12:16:03 +0200 |
| commit | 09cf9db1bcd60d9889b774925ba7058286d35412 (patch) | |
| tree | d98287953aec5ba2676fc377c007f34a54829028 | |
| parent | 61de4c680846167e01d7ba42bf787f8d1d80bf5e (diff) | |
| download | qemu-09cf9db1bcd60d9889b774925ba7058286d35412.zip qemu-09cf9db1bcd60d9889b774925ba7058286d35412.tar.gz qemu-09cf9db1bcd60d9889b774925ba7058286d35412.tar.bz2 | |
block: Remove bdrv_(set_)enable_write_cache()
The only remaining users were block jobs (mirror and backup) which
unconditionally enabled WCE on the BlockBackend of the target image. As
these block jobs don't go through BlockBackend for their I/O requests,
they aren't affected by this setting anyway but always get a writeback
mode, so that call can be removed.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
| -rw-r--r-- | block.c | 16 | ||||
| -rw-r--r-- | block/backup.c | 1 | ||||
| -rw-r--r-- | block/mirror.c | 1 | ||||
| -rw-r--r-- | include/block/block.h | 2 |
4 files changed, 0 insertions, 20 deletions
@@ -2695,22 +2695,6 @@ int bdrv_is_sg(BlockDriverState *bs) return bs->sg; } -int bdrv_enable_write_cache(BlockDriverState *bs) -{ - if (bs->blk) { - return blk_enable_write_cache(bs->blk); - } else { - return true; - } -} - -void bdrv_set_enable_write_cache(BlockDriverState *bs, bool wce) -{ - if (bs->blk) { - blk_set_enable_write_cache(bs->blk, wce); - } -} - int bdrv_is_encrypted(BlockDriverState *bs) { if (bs->backing && bs->backing->bs->encrypted) { diff --git a/block/backup.c b/block/backup.c index 9170983..491fd14 100644 --- a/block/backup.c +++ b/block/backup.c @@ -404,7 +404,6 @@ static void coroutine_fn backup_run(void *opaque) job->done_bitmap = bitmap_new(end); - bdrv_set_enable_write_cache(target, true); if (target->blk) { blk_set_on_error(target->blk, on_target_error, on_target_error); blk_iostatus_enable(target->blk); diff --git a/block/mirror.c b/block/mirror.c index 7bfd0d2..f64db1a 100644 --- a/block/mirror.c +++ b/block/mirror.c @@ -856,7 +856,6 @@ static void mirror_start_job(BlockDriverState *bs, BlockDriverState *target, bdrv_op_block_all(s->target, s->common.blocker); - bdrv_set_enable_write_cache(s->target, true); if (s->target->blk) { blk_set_on_error(s->target->blk, on_target_error, on_target_error); blk_iostatus_enable(s->target->blk); diff --git a/include/block/block.h b/include/block/block.h index 7bacd55..6a39f94 100644 --- a/include/block/block.h +++ b/include/block/block.h @@ -395,8 +395,6 @@ int bdrv_is_allocated_above(BlockDriverState *top, BlockDriverState *base, int bdrv_is_read_only(BlockDriverState *bs); int bdrv_is_sg(BlockDriverState *bs); -int bdrv_enable_write_cache(BlockDriverState *bs); -void bdrv_set_enable_write_cache(BlockDriverState *bs, bool wce); bool bdrv_is_inserted(BlockDriverState *bs); int bdrv_media_changed(BlockDriverState *bs); void bdrv_lock_medium(BlockDriverState *bs, bool locked); |