diff options
| author | Max Reitz <mreitz@redhat.com> | 2019-09-18 11:51:40 +0200 |
|---|---|---|
| committer | Max Reitz <mreitz@redhat.com> | 2019-10-28 12:00:07 +0100 |
| commit | c80d8b06cfa59f5d8229379c85dcb2c3bb9c881b (patch) | |
| tree | 0e30acba1187e0e5ccfaaf6324dc46431b6691af /block/parallels.c | |
| parent | 26536c7fc25917d1bd13781f81fe3ab039643bff (diff) | |
block: Add @exact parameter to bdrv_co_truncate()
We have two drivers (iscsi and file-posix) that (in some cases) return
success from their .bdrv_co_truncate() implementation if the block
device is larger than the requested offset, but cannot be shrunk. Some
callers do not want that behavior, so this patch adds a new parameter
that they can use to turn off that behavior.
This patch just adds the parameter and lets the block/io.c and
block/block-backend.c functions pass it around. All other callers
always pass false and none of the implementations evaluate it, so that
this patch does not change existing behavior. Future patches take care
of that.
Suggested-by: Maxim Levitsky <mlevitsk@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190918095144.955-5-mreitz@redhat.com
Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
Diffstat (limited to 'block/parallels.c')
| -rw-r--r-- | block/parallels.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/block/parallels.c b/block/parallels.c index 905cac35c6..a1a92c97a4 100644 --- a/block/parallels.c +++ b/block/parallels.c @@ -203,7 +203,7 @@ static int64_t allocate_clusters(BlockDriverState *bs, int64_t sector_num, } else { ret = bdrv_truncate(bs->file, (s->data_end + space) << BDRV_SECTOR_BITS, - PREALLOC_MODE_OFF, NULL); + false, PREALLOC_MODE_OFF, NULL); } if (ret < 0) { return ret; @@ -487,7 +487,7 @@ static int coroutine_fn parallels_co_check(BlockDriverState *bs, res->leaks += count; if (fix & BDRV_FIX_LEAKS) { Error *local_err = NULL; - ret = bdrv_truncate(bs->file, res->image_end_offset, + ret = bdrv_truncate(bs->file, res->image_end_offset, false, PREALLOC_MODE_OFF, &local_err); if (ret < 0) { error_report_err(local_err); @@ -880,7 +880,7 @@ static void parallels_close(BlockDriverState *bs) if ((bs->open_flags & BDRV_O_RDWR) && !(bs->open_flags & BDRV_O_INACTIVE)) { s->header->inuse = 0; parallels_update_header(bs); - bdrv_truncate(bs->file, s->data_end << BDRV_SECTOR_BITS, + bdrv_truncate(bs->file, s->data_end << BDRV_SECTOR_BITS, false, PREALLOC_MODE_OFF, NULL); } |