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| author | Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> | 2020-12-04 01:27:10 +0300 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2020-12-11 17:52:40 +0100 |
| commit | 9b100af30f175bffe1fc44c3577ba42e8c170864 (patch) | |
| tree | 23f9ce082fe653085e5608a6f6cafe15d4d1fb7e /block | |
| parent | 7cc25f6c9ba1622c0e2c1186bb47fca8de03672b (diff) | |
| download | qemu-9b100af30f175bffe1fc44c3577ba42e8c170864.zip qemu-9b100af30f175bffe1fc44c3577ba42e8c170864.tar.gz qemu-9b100af30f175bffe1fc44c3577ba42e8c170864.tar.bz2 | |
block/file-posix: fix workaround in raw_do_pwrite_zeroes()
We should not set overlap_bytes:
1. Don't worry: it is calculated by bdrv_mark_request_serialising() and
will be equal to or greater than bytes anyway.
2. If the request was already aligned up to some greater alignment,
than we may break things: we reduce overlap_bytes, and further
bdrv_mark_request_serialising() may not help, as it will not restore
old bigger alignment.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20201203222713.13507-2-vsementsov@virtuozzo.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'block')
| -rw-r--r-- | block/file-posix.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/block/file-posix.c b/block/file-posix.c index 806764f..9bee3d8 100644 --- a/block/file-posix.c +++ b/block/file-posix.c @@ -2952,7 +2952,6 @@ raw_do_pwrite_zeroes(BlockDriverState *bs, int64_t offset, int bytes, end = INT64_MAX & -(uint64_t)bs->bl.request_alignment; req->bytes = end - req->offset; - req->overlap_bytes = req->bytes; bdrv_mark_request_serialising(req, bs->bl.request_alignment); } |