On Tue, 2018-12-18 at 14:41 -0800, Jaegeuk Kim wrote:
> [ ... ]
Please post new versions of a patch as a new e-mail thread instead of
as a reply to a previous e-mail.
> [ ... ]
>
> if (lo->lo_offset != info->lo_offset ||
> lo->lo_sizelimit != info->lo_sizelimit) {
> +
Hi Jens,
May I ask whether this patch is acceptable?
Thanks,
On 12/18, Jaegeuk Kim wrote:
> If we don't drop caches used in old offset or block_size, we can get old data
> from new offset/block_size, which gives unexpected data to user.
>
> For example, Martijn found a loopback bug in the below
If we don't drop caches used in old offset or block_size, we can get old data
from new offset/block_size, which gives unexpected data to user.
For example, Martijn found a loopback bug in the below scenario.
1) LOOP_SET_FD loads first two pages on loop file
2) LOOP_SET_STATUS64 changes the offset
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