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(parent: ca6cc67) | patch
block/loop: allow request merge for directio mode
authorShaohua Li <shli@fb.com>
Fri, 1 Sep 2017 05:09:46 +0000 (22:09 -0700)
committerJens Axboe <axboe@kernel.dk>
Fri, 1 Sep 2017 14:44:34 +0000 (08:44 -0600)
commitf520cc28fc0b0b213d911654660316d14190ce3c
tree8fcd492241c391279b3957fed2979c1d70aaa1e5tree | snapshot
parentca6cc679c024e2078129026356879ae0d1b75230commit | diff
block/loop: allow request merge for directio mode

Currently loop disables merge. While it makes sense for buffer IO mode,
directio mode can benefit from request merge. Without merge, loop could
send small size IO to underlayer disk and harm performance.

Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Shaohua Li <shli@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
drivers/block/loop.c diff | blob | history
drivers/block/loop.h diff | blob | history
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