block: disable discard request merge temporarily
commit276f0f5d157bb4a816053f4f3a941dbcd4f76556
authorShaohua Li <shli@fusionio.com>
Thu, 9 Aug 2012 13:20:23 +0000 (9 15:20 +0200)
committerJens Axboe <axboe@kernel.dk>
Thu, 9 Aug 2012 13:20:23 +0000 (9 15:20 +0200)
tree96192def39c6cb8dbd6f2ae6b8847aaf20c0dfb4
parent389d7b26d9e4f78b17366c23a3aa16b3c5cb3bde
block: disable discard request merge temporarily

The SCSI discard request merge never worked, and looks no solution
for in future, let's disable it temporarily.

Signed-off-by: Shaohua Li <shli@fusionio.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
include/linux/blkdev.h