On Mon, May 20, 2019 at 04:51:38PM +0300, Nikolay Borisov wrote:
> Up until now trimming the freespace was done irrespective of what the
> arguments of the FITRIM ioctl were. For example fstrim's -o/-l arguments
> will be entirely ignored. Fix it by correctly handling those paramter.
> This requires breaking if the found freespace extent is after the end of
> the passed range as well as completing trim after trimming
> fstrim_range::len bytes.
>
> Fixes: 499f377f49f0 ("btrfs: iterate over unused chunk space in FITRIM")
> CC: stable@xxxxxxxxxxxxxxx # 4.4+
> Signed-off-by: Nikolay Borisov <nborisov@xxxxxxxx>
> Reviewed-by: David Sterba <dsterba@xxxxxxxx>
> Signed-off-by: David Sterba <dsterba@xxxxxxxx>
> ---
>
> Hello,
>
> Here is a backport of upstream commit c2d1b3aae33605a61cbab445d8ae1c708ccd2698
> for 4.14.y. Please apply
> fs/btrfs/extent-tree.c | 25 +++++++++++++++++++------
> 1 file changed, 19 insertions(+), 6 deletions(-)
All of these now queued up, thanks.
greg k-h
