diff options
| author | Max Reitz <mreitz@redhat.com> | 2020-10-27 20:05:44 +0100 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2020-12-11 17:52:40 +0100 |
| commit | 4fba06d5941e74169a6d33bcfd09093a49dd311f (patch) | |
| tree | 0cfff0def1e32a62dbdd94a4bfb30e1b4c8b30df /qapi | |
| parent | 41429e3d79c331503a87ec23b5da3cc1440a73fa (diff) | |
fuse: Allow growable exports
These will behave more like normal files in that writes beyond the EOF
will automatically grow the export size.
As an optimization, keep the RESIZE permission for growable exports so
we do not have to take it for every post-EOF write. (This permission is
not released when the export is destroyed, because at that point the
BlockBackend is destroyed altogether anyway.)
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20201027190600.192171-5-mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'qapi')
| -rw-r--r-- | qapi/block-export.json | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/qapi/block-export.json b/qapi/block-export.json index 430bc69f35..e819e70cac 100644 --- a/qapi/block-export.json +++ b/qapi/block-export.json @@ -129,10 +129,14 @@ # @mountpoint: Path on which to export the block device via FUSE. # This must point to an existing regular file. # +# @growable: Whether writes beyond the EOF should grow the block node +# accordingly. (default: false) +# # Since: 6.0 ## { 'struct': 'BlockExportOptionsFuse', - 'data': { 'mountpoint': 'str' }, + 'data': { 'mountpoint': 'str', + '*growable': 'bool' }, 'if': 'defined(CONFIG_FUSE)' } ## |