On Mon, Nov 09, 2015 at 02:06:26PM +0100, Florian Margaine wrote:
> Instead of using string functions to extract the device name and reading
> this file, this patch uses the loop device API through ioctl to get the
> correct backing file.
#define LO_NAME_SIZE 64
struct loop_info64 {
...
uint8_t lo_file_name[LO_NAME_SIZE];
};
The loopdev is based on file descriptor, the lo_file_name[] is hint
only and it does not have to match with the real path and the most
important problem is that it uses 64-bytes buffer.
For losetup we use LOOP_GET_STATUS64 ioctl as fallback solution only.
Karel
--
Karel Zak <[email protected]>
http://karelzak.blogspot.com
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