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| author | NeilBrown <neilb@suse.de> | 2022-03-22 14:39:10 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-03-22 15:57:01 -0700 |
| commit | b9b1335e640308acc1b8f26c739b804c80a6c147 (patch) | |
| tree | c5f574eef3a53541c05399c92428d105dff26347 /mm/vmscan.c | |
| parent | fe55d563d4174f13839a9b7ef7309da5031b5d93 (diff) | |
| download | lwn-b9b1335e640308acc1b8f26c739b804c80a6c147.tar.gz lwn-b9b1335e640308acc1b8f26c739b804c80a6c147.zip | |
remove bdi_congested() and wb_congested() and related functions
These functions are no longer useful as no BDIs report congestions any
more.
Removing the test on bdi_write_contested() in current_may_throttle()
could cause a small change in behaviour, but only when PF_LOCAL_THROTTLE
is set.
So replace the calls by 'false' and simplify the code - and remove the
functions.
[akpm@linux-foundation.org: fix build]
Link: https://lkml.kernel.org/r/164549983742.9187.2570198746005819592.stgit@noble.brown
Signed-off-by: NeilBrown <neilb@suse.de>
Acked-by: Ryusuke Konishi <konishi.ryusuke@gmail.com> [nilfs]
Cc: Anna Schumaker <Anna.Schumaker@Netapp.com>
Cc: Chao Yu <chao@kernel.org>
Cc: Darrick J. Wong <djwong@kernel.org>
Cc: Ilya Dryomov <idryomov@gmail.com>
Cc: Jaegeuk Kim <jaegeuk@kernel.org>
Cc: Jan Kara <jack@suse.cz>
Cc: Jeff Layton <jlayton@kernel.org>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Lars Ellenberg <lars.ellenberg@linbit.com>
Cc: Miklos Szeredi <miklos@szeredi.hu>
Cc: Paolo Valente <paolo.valente@linaro.org>
Cc: Philipp Reisner <philipp.reisner@linbit.com>
Cc: Trond Myklebust <trond.myklebust@hammerspace.com>
Cc: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/vmscan.c')
| -rw-r--r-- | mm/vmscan.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c index e38de6456cdc..5e1469887afa 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -2364,9 +2364,7 @@ static unsigned int move_pages_to_lru(struct lruvec *lruvec, */ static int current_may_throttle(void) { - return !(current->flags & PF_LOCAL_THROTTLE) || - current->backing_dev_info == NULL || - bdi_write_congested(current->backing_dev_info); + return !(current->flags & PF_LOCAL_THROTTLE); } /* |