buffer: remove useless comment and WB_REASON_FREE_MORE_MEM, reason.
authorZhiqiang Liu <liuzhiqiang26@huawei.com>
Mon, 13 Apr 2020 05:12:10 +0000 (13:12 +0800)
committerJens Axboe <axboe@kernel.dk>
Sat, 18 Apr 2020 03:38:11 +0000 (21:38 -0600)
commitc4b4c2a78a9fc0c532c58504e8cb5441224ff1d9
treee01ffffd13d9871254c608fa07ea748f7b5c8f39
parent90280eaa88ac1a9140dc759941123530d5545bb6
buffer: remove useless comment and WB_REASON_FREE_MORE_MEM, reason.

free_more_memory func has been completely removed in commit bc48f001de12
("buffer: eliminate the need to call free_more_memory() in __getblk_slow()")

So comment and `WB_REASON_FREE_MORE_MEM` reason about free_more_memory
are no longer needed.

Fixes: bc48f001de12 ("buffer: eliminate the need to call free_more_memory() in __getblk_slow()")
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Zhiqiang Liu <liuzhiqiang26@huawei.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
fs/buffer.c
include/linux/backing-dev-defs.h
include/trace/events/writeback.h