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| author | Kent Overstreet <kent.overstreet@gmail.com> | 2021-01-11 16:11:02 -0500 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2023-10-22 17:08:51 -0400 |
| commit | edfbba58e3e7a94900d24d266e6365b1ab531e3b (patch) | |
| tree | e523610cc02bc6a6b17c13155f920155d3e40a3b /fs/bcachefs/btree_cache.h | |
| parent | 2a3731e34de9365038b25d76bb6e11cf5c40ac36 (diff) | |
| download | lwn-edfbba58e3e7a94900d24d266e6365b1ab531e3b.tar.gz lwn-edfbba58e3e7a94900d24d266e6365b1ab531e3b.zip | |
bcachefs: Add btree node prefetching to bch2_btree_and_journal_walk()
bch2_btree_and_journal_walk() walks the btree overlaying keys from the
journal; it was introduced so that we could read in the alloc btree
prior to journal replay being done, when journalling of updates to
interior btree nodes was introduced.
But it didn't have btree node prefetching, which introduced a severe
regression with mount times, particularly on spinning rust. This patch
implements btree node prefetching for the btree + journal walk,
hopefully fixing that.
Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Diffstat (limited to 'fs/bcachefs/btree_cache.h')
| -rw-r--r-- | fs/bcachefs/btree_cache.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/bcachefs/btree_cache.h b/fs/bcachefs/btree_cache.h index e766ef552ce7..0eeca0bcc48e 100644 --- a/fs/bcachefs/btree_cache.h +++ b/fs/bcachefs/btree_cache.h @@ -32,7 +32,7 @@ struct btree *bch2_btree_node_get_sibling(struct bch_fs *, struct btree_iter *, struct btree *, enum btree_node_sibling); void bch2_btree_node_prefetch(struct bch_fs *, struct btree_iter *, - const struct bkey_i *, unsigned); + const struct bkey_i *, enum btree_id, unsigned); void bch2_fs_btree_cache_exit(struct bch_fs *); int bch2_fs_btree_cache_init(struct bch_fs *); |