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block: Handle flush error in bdrv_pwrite_sync()

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We don't want to silently ignore a flush error.

Also, there is little point in avoiding the flush for writethrough modes
and once WCE is moved to the BB layer, we definitely need the flush here
because bdrv_pwrite() won't involve one any more.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
This commit is contained in:
Kevin Wolf 2016-03-04 14:16:51 +01:00
parent 72e775c7d9
commit 855a6a93a1
1 changed files with 3 additions and 3 deletions
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6
block/io.c
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@ -747,9 +747,9 @@ int bdrv_pwrite_sync(BlockDriverState *bs, int64_t offset,
return ret;
}
/* No flush needed for cache modes that already do it */
if (bs->enable_write_cache) {
bdrv_flush(bs);
ret = bdrv_flush(bs);
if (ret < 0) {
return ret;
}
return 0;