block: Document scheduler modification locking requirements
authorBart Van Assche <bart.vanassche@wdc.com>
Wed, 17 Jan 2018 19:48:09 +0000 (11:48 -0800)
committerJens Axboe <axboe@kernel.dk>
Thu, 18 Jan 2018 19:54:42 +0000 (12:54 -0700)
commit14a23498ba97683c6790b1bcd8b2cdfe9ad99797
tree2fd6541a0cb24db6f70ca2ee5ae54675531b273a
parent83d016ac86428dbca8a62d3e4fdc29e3ea39e535
block: Document scheduler modification locking requirements

This patch does not change any functionality.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
block/elevator.c