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author | Kevin Wolf <kwolf@redhat.com> | 2017-02-17 11:23:33 +0100 |
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committer | Kevin Wolf <kwolf@redhat.com> | 2017-02-24 16:09:23 +0100 |
commit | 7dad9ee6467e0e3024fbe09f8a363148558b8eef (patch) | |
tree | 4a8e6364b206fa01fc51c64c3ef344eaa9765ce8 /blockdev.c | |
parent | 2c3b44da07d341557a8203cc509ea07fe3605e11 (diff) | |
download | qemu-7dad9ee6467e0e3024fbe09f8a363148558b8eef.zip qemu-7dad9ee6467e0e3024fbe09f8a363148558b8eef.tar.gz qemu-7dad9ee6467e0e3024fbe09f8a363148558b8eef.tar.bz2 |
blockdev: Use BlockBackend to resize in qmp_block_resize()
In order to be able to do permission checking and to keep working with
the BdrvChild based bdrv_truncate() that this involves, we need to
create a temporary BlockBackend to resize the image.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Diffstat (limited to 'blockdev.c')
-rw-r--r-- | blockdev.c | 7 |
1 files changed, 6 insertions, 1 deletions
@@ -2858,6 +2858,7 @@ void qmp_block_resize(bool has_device, const char *device, int64_t size, Error **errp) { Error *local_err = NULL; + BlockBackend *blk = NULL; BlockDriverState *bs; AioContext *aio_context; int ret; @@ -2888,10 +2889,13 @@ void qmp_block_resize(bool has_device, const char *device, goto out; } + blk = blk_new(); + blk_insert_bs(blk, bs); + /* complete all in-flight operations before resizing the device */ bdrv_drain_all(); - ret = bdrv_truncate(bs, size); + ret = blk_truncate(blk, size); switch (ret) { case 0: break; @@ -2913,6 +2917,7 @@ void qmp_block_resize(bool has_device, const char *device, } out: + blk_unref(blk); aio_context_release(aio_context); } |