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authorDenis V. Lunev <den@openvz.org>2017-08-04 18:10:13 +0300
committerKevin Wolf <kwolf@redhat.com>2017-08-08 15:19:16 +0200
commite5e6268348972aaf415d7931bbd808b3fdba6cb1 (patch)
treeb16ad4431a5205398cdd584a213282590e764668 /block/parallels.c
parentd8b83e37c381cf86ecd907301b7dcc65baaa0aea (diff)
parallels: drop check that bdrv_truncate() is working
This would be actually strange and error prone. If truncate() nowadays will fail, there is something fatally wrong. Let's check for that during the actual work. The only fallback case is when the file is not zero initialized. In this case we should switch to preallocation via fallocate(). Signed-off-by: Denis V. Lunev <den@openvz.org> CC: Markus Armbruster <armbru@redhat.com> CC: Kevin Wolf <kwolf@redhat.com> CC: Max Reitz <mreitz@redhat.com> CC: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'block/parallels.c')
-rw-r--r--block/parallels.c4
1 files changed, 1 insertions, 3 deletions
diff --git a/block/parallels.c b/block/parallels.c
index 6794e53c0b..e1e06d23cc 100644
--- a/block/parallels.c
+++ b/block/parallels.c
@@ -703,9 +703,7 @@ static int parallels_open(BlockDriverState *bs, QDict *options, int flags,
goto fail_options;
}
- if (!(flags & BDRV_O_RESIZE) || !bdrv_has_zero_init(bs->file->bs) ||
- bdrv_truncate(bs->file, bdrv_getlength(bs->file->bs),
- PREALLOC_MODE_OFF, NULL) != 0) {
+ if (!bdrv_has_zero_init(bs->file->bs)) {
s->prealloc_mode = PRL_PREALLOC_MODE_FALLOCATE;
}