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buffer: remove useless comment and WB_REASON_FREE_MORE_MEM, reason.

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free_more_memory func has been completely removed in commit bc48f001de
("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: bc48f001de ("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>
This commit is contained in:
Zhiqiang Liu 2020-04-13 13:12:10 +08:00 • committed by Jens Axboe
parent 90280eaa88
commit c4b4c2a78a
3 changed files with 1 additions and 3 deletions
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1
include/linux/backing-dev-defs.h
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@ -54,7 +54,6 @@ enum wb_reason {
WB_REASON_SYNC,
WB_REASON_PERIODIC,
WB_REASON_LAPTOP_TIMER,
WB_REASON_FREE_MORE_MEM,
WB_REASON_FS_FREE_SPACE,
/*
* There is no bdi forker thread any more and works are done