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| author | Kent Overstreet <kent.overstreet@gmail.com> | 2022-03-14 21:48:42 -0400 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2023-10-22 17:09:29 -0400 |
| commit | 31f63fd1244d9609265eb5cfc522c142b35cdacc (patch) | |
| tree | ba7e780ac34fe7ce6f6647b0a47f4da301b26d83 /fs/bcachefs/btree_key_cache.c | |
| parent | d905f67ec89fda758bcfa70d0b5c3d3006bbdb3e (diff) | |
| download | lwn-31f63fd1244d9609265eb5cfc522c142b35cdacc.tar.gz lwn-31f63fd1244d9609265eb5cfc522c142b35cdacc.zip | |
bcachefs: Introduce a separate journal watermark for copygc
Since journal reclaim -> btree key cache flushing may require the
allocation of new btree nodes, it has an implicit dependency on copygc
in order to make forward progress - so we should avoid blocking copygc
unless the journal is really close to full.
This introduces watermarks to replace our single MAY_GET_UNRESERVED bit
in the journal, and adds a watermark for copygc and plumbs it through.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Diffstat (limited to 'fs/bcachefs/btree_key_cache.c')
| -rw-r--r-- | fs/bcachefs/btree_key_cache.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/bcachefs/btree_key_cache.c b/fs/bcachefs/btree_key_cache.c index 7e41552a57df..f856dee0c3aa 100644 --- a/fs/bcachefs/btree_key_cache.c +++ b/fs/bcachefs/btree_key_cache.c @@ -421,7 +421,7 @@ static int btree_key_cache_flush_pos(struct btree_trans *trans, BTREE_INSERT_NOFAIL| BTREE_INSERT_USE_RESERVE| (ck->journal.seq == journal_last_seq(j) - ? BTREE_INSERT_JOURNAL_RESERVED + ? JOURNAL_WATERMARK_reserved : 0)| commit_flags); if (ret) { |