From: Kirill Tkhai <ktkhai@xxxxxxxxxxxxx> From: Kirill Tkhai <ktkhai@xxxxxxxxxxxxx> Send fallocate(0) request into underlining filesystem after upper filesystem sent REQ_OP_ASSIGN_RANGE request to block device. Signed-off-by: Kirill Tkhai <ktkhai@xxxxxxxxxxxxx> [Use blk_queue_max_assign_range_sectors() from newly updated previous patch.] Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@xxxxxxx> --- drivers/block/loop.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/block/loop.c b/drivers/block/loop.c index 739b372a5112..0a28db66c485 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -609,6 +609,8 @@ static int do_req_filebacked(struct loop_device *lo, struct request *rq) FALLOC_FL_PUNCH_HOLE); case REQ_OP_DISCARD: return lo_fallocate(lo, rq, pos, FALLOC_FL_PUNCH_HOLE); + case REQ_OP_ASSIGN_RANGE: + return lo_fallocate(lo, rq, pos, 0); case REQ_OP_WRITE: if (lo->transfer) return lo_write_transfer(lo, rq, pos); @@ -876,6 +878,7 @@ static void loop_config_discard(struct loop_device *lo) q->limits.discard_granularity = 0; q->limits.discard_alignment = 0; blk_queue_max_discard_sectors(q, 0); + blk_queue_max_assign_range_sectors(q, 0); blk_queue_max_write_zeroes_sectors(q, 0); blk_queue_flag_clear(QUEUE_FLAG_DISCARD, q); return; @@ -886,6 +889,7 @@ static void loop_config_discard(struct loop_device *lo) blk_queue_max_discard_sectors(q, UINT_MAX >> 9); blk_queue_max_write_zeroes_sectors(q, UINT_MAX >> 9); + blk_queue_max_assign_range_sectors(q, UINT_MAX >> 9); blk_queue_flag_set(QUEUE_FLAG_DISCARD, q); } @@ -1917,6 +1921,7 @@ static blk_status_t loop_queue_rq(struct blk_mq_hw_ctx *hctx, case REQ_OP_FLUSH: case REQ_OP_DISCARD: case REQ_OP_WRITE_ZEROES: + case REQ_OP_ASSIGN_RANGE: cmd->use_aio = false; break; default: -- 2.22.0
