| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.13 117/800] loop: Fix missing discard support when using LOOP_CONFIGURE | Date | Mon, 12 Jul 2021 08:02:20 +0200 |
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From: Kristian Klausen <kristian@klausen.dk>
commit 2b9ac22b12a266eb4fec246a07b504dd4983b16b upstream.
Without calling loop_config_discard() the discard flag and parameters aren't set/updated for the loop device and worst-case they could indicate discard support when it isn't the case (ex: if the LOOP_SET_STATUS ioctl was used with a different file prior to LOOP_CONFIGURE).
Cc: <stable@vger.kernel.org> # 5.8.x- Fixes: 3448914e8cc5 ("loop: Add LOOP_CONFIGURE ioctl") Signed-off-by: Kristian Klausen <kristian@klausen.dk> Link: https://lore.kernel.org/r/20210618115157.31452-1-kristian@klausen.dk Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/block/loop.c | 1 + 1 file changed, 1 insertion(+)
--- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -1154,6 +1154,7 @@ static int loop_configure(struct loop_de blk_queue_physical_block_size(lo->lo_queue, bsize); blk_queue_io_min(lo->lo_queue, bsize); + loop_config_discard(lo); loop_update_rotational(lo); loop_update_dio(lo); loop_sysfs_init(lo);
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