[Qemu-devel] [PATCH 01/14] Revert "block: complete all IOs before .bdrv_truncate"

[Kevin Wolf <kwolf@redhat.com>]

From: Peter Lieven <pl@dlhnet.de>

brdv_truncate() is also called from readv/writev commands on self-
growing file based storage. this will result in requests waiting
for theirselves to complete.

This reverts commit 9a665b2b8640e464f0a778216fc2dca8d02acf33.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
---
 block.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/block.c b/block.c
index 0a062c9..22647b2 100644
--- a/block.c
+++ b/block.c
@@ -2487,10 +2487,6 @@ int bdrv_truncate(BlockDriverState *bs, int64_t offset)
         return -EACCES;
     if (bdrv_in_use(bs))
         return -EBUSY;
-
-    /* There better not be any in-flight IOs when we truncate the device. */
-    bdrv_drain_all();
-
     ret = drv->bdrv_truncate(bs, offset);
     if (ret == 0) {
         ret = refresh_total_sectors(bs, offset >> BDRV_SECTOR_BITS);
-- 
1.8.1.4