On Tue, Aug 02, 2016 at 07:55:58PM +0200, Stanislav Brabec wrote:
> If losetup --find is called with parameters matching to an existing loop device,
> re-use this loop device instead of allocating new one.
>
> If --force is used, fall back to the old behavior.
>
> Signed-off-by: Stanislav Brabec <sbrabec@xxxxxxx>
> ---
> sys-utils/losetup.c | 46 ++++++++++++++++++++++++++++++++++++++++++++++
> 1 file changed, 46 insertions(+)
>
> diff --git a/sys-utils/losetup.c b/sys-utils/losetup.c
> index 0a323a9..ef6f52b 100644
> --- a/sys-utils/losetup.c
> +++ b/sys-utils/losetup.c
> @@ -682,6 +682,51 @@ int main(int argc, char **argv)
> {
> int hasdev = loopcxt_has_device(&lc);
>
> + if (!hasdev && !force) {
> + res = loopcxt_find_by_backing_file(&lc,
> + file, offset, sizelimit,
> + LOOPDEV_FL_OFFSET | LOOPDEV_FL_SIZELIMIT);
Is it valid to set always the flags? If I do not specify --sizelimit
then this code will use 0 as wanted size, right?
Karel
--
Karel Zak <kzak@xxxxxxxxxx>
http://karelzak.blogspot.com
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