3.8.13.14 -stable review patch. If anyone has any objections, please let me know.
------------------ From: Mike Snitzer <[email protected]> commit d82ae52e68892338068e7559a0c0657193341ce4 upstream. Without this patch all DM devices will default to BLK_MAX_SEGMENT_SIZE (65536) even if the underlying device(s) have a larger value -- this is due to blk_stack_limits() using min_not_zero() when stacking the max_segment_size limit. 1073741824 before patch: 65536 after patch: 1073741824 Reported-by: Lukasz Flis <[email protected]> Signed-off-by: Mike Snitzer <[email protected]> Signed-off-by: Jens Axboe <[email protected]> Signed-off-by: Kamal Mostafa <[email protected]> --- block/blk-settings.c | 1 + 1 file changed, 1 insertion(+) diff --git a/block/blk-settings.c b/block/blk-settings.c index c50ecf0..5330933 100644 --- a/block/blk-settings.c +++ b/block/blk-settings.c @@ -144,6 +144,7 @@ void blk_set_stacking_limits(struct queue_limits *lim) lim->discard_zeroes_data = 1; lim->max_segments = USHRT_MAX; lim->max_hw_sectors = UINT_MAX; + lim->max_segment_size = UINT_MAX; lim->max_sectors = UINT_MAX; lim->max_write_same_sectors = UINT_MAX; } -- 1.8.3.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
