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authorMax Reitz <mreitz@redhat.com>2017-06-13 22:20:53 +0200
committerMax Reitz <mreitz@redhat.com>2017-07-11 17:45:01 +0200
commit7ea37c30660d4cd6aca21a324fabefe23b89f931 (patch)
tree897afd4ead51179dfb1473bfa44a92a4de121f1f /block.c
parent8243ccb7433e59a3faa3cca27fb6c40d6da2b37c (diff)
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block: Add PreallocMode to bdrv_truncate()
For block drivers that just pass a truncate request to the underlying protocol, we can now pass the preallocation mode instead of aborting if it is not PREALLOC_MODE_OFF. Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Message-id: 20170613202107.10125-3-mreitz@redhat.com Signed-off-by: Max Reitz <mreitz@redhat.com>
Diffstat (limited to 'block.c')
-rw-r--r--block.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/block.c b/block.c
index 37e7b3d..d24ae85 100644
--- a/block.c
+++ b/block.c
@@ -3411,7 +3411,8 @@ exit:
/**
* Truncate file to 'offset' bytes (needed only for file protocols)
*/
-int bdrv_truncate(BdrvChild *child, int64_t offset, Error **errp)
+int bdrv_truncate(BdrvChild *child, int64_t offset, PreallocMode prealloc,
+ Error **errp)
{
BlockDriverState *bs = child->bs;
BlockDriver *drv = bs->drv;
@@ -3434,7 +3435,7 @@ int bdrv_truncate(BdrvChild *child, int64_t offset, Error **errp)
assert(!(bs->open_flags & BDRV_O_INACTIVE));
- ret = drv->bdrv_truncate(bs, offset, PREALLOC_MODE_OFF, errp);
+ ret = drv->bdrv_truncate(bs, offset, prealloc, errp);
if (ret == 0) {
ret = refresh_total_sectors(bs, offset >> BDRV_SECTOR_BITS);
bdrv_dirty_bitmap_truncate(bs);