Hi The strncmp function should compare 4 bytes. But I'm wondering what's the purpose of this test at all? bio-based interface doesn't support partial completions for any device - so why do we need special code path just for nvme and why can't we use it for other block devices? Mikulas Signed-off-by: Mikulas Patocka <mpatocka@xxxxxxxxxx> --- drivers/md/dm-table.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) Index: linux-2.6/drivers/md/dm-table.c =================================================================== --- linux-2.6.orig/drivers/md/dm-table.c 2018-02-24 03:40:18.000000000 +0100 +++ linux-2.6/drivers/md/dm-table.c 2018-02-26 19:36:29.728499000 +0100 @@ -1755,7 +1755,7 @@ static int device_no_partial_completion( char b[BDEVNAME_SIZE]; /* For now, NVMe devices are the only devices of this class */ - return (strncmp(bdevname(dev->bdev, b), "nvme", 3) == 0); + return (strncmp(bdevname(dev->bdev, b), "nvme", 4) == 0); } static bool dm_table_does_not_support_partial_completion(struct dm_table *t) -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
