diff options
| 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 /fs | |
| 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 'fs')
| -rw-r--r-- | fs/ext2/ialloc.c | 5 | ||||
| -rw-r--r-- | fs/nilfs2/segbuf.c | 16 | ||||
| -rw-r--r-- | fs/xfs/xfs_buf.c | 3 |
3 files changed, 0 insertions, 24 deletions
diff --git a/fs/ext2/ialloc.c b/fs/ext2/ialloc.c index df14e750e9fe..998dd2ac8008 100644 --- a/fs/ext2/ialloc.c +++ b/fs/ext2/ialloc.c @@ -170,11 +170,6 @@ static void ext2_preread_inode(struct inode *inode) unsigned long offset; unsigned long block; struct ext2_group_desc * gdp; - struct backing_dev_info *bdi; - - bdi = inode_to_bdi(inode); - if (bdi_rw_congested(bdi)) - return; block_group = (inode->i_ino - 1) / EXT2_INODES_PER_GROUP(inode->i_sb); gdp = ext2_get_group_desc(inode->i_sb, block_group, NULL); diff --git a/fs/nilfs2/segbuf.c b/fs/nilfs2/segbuf.c index 43287b0d3e9b..f4b57bc0c586 100644 --- a/fs/nilfs2/segbuf.c +++ b/fs/nilfs2/segbuf.c @@ -341,18 +341,6 @@ static int nilfs_segbuf_submit_bio(struct nilfs_segment_buffer *segbuf, int mode_flags) { struct bio *bio = wi->bio; - int err; - - if (segbuf->sb_nbio > 0 && - bdi_write_congested(segbuf->sb_super->s_bdi)) { - wait_for_completion(&segbuf->sb_bio_event); - segbuf->sb_nbio--; - if (unlikely(atomic_read(&segbuf->sb_err))) { - bio_put(bio); - err = -EIO; - goto failed; - } - } bio->bi_end_io = nilfs_end_bio_write; bio->bi_private = segbuf; @@ -365,10 +353,6 @@ static int nilfs_segbuf_submit_bio(struct nilfs_segment_buffer *segbuf, wi->nr_vecs = min(wi->max_pages, wi->rest_blocks); wi->start = wi->end; return 0; - - failed: - wi->bio = NULL; - return err; } /** diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c index b45e0d50a405..b7ebcfe6b8d3 100644 --- a/fs/xfs/xfs_buf.c +++ b/fs/xfs/xfs_buf.c @@ -843,9 +843,6 @@ xfs_buf_readahead_map( { struct xfs_buf *bp; - if (bdi_read_congested(target->bt_bdev->bd_disk->bdi)) - return; - xfs_buf_read_map(target, map, nmaps, XBF_TRYLOCK | XBF_ASYNC | XBF_READ_AHEAD, &bp, ops, __this_address); |