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| author | Kent Overstreet <kent.overstreet@linux.dev> | 2023-12-28 10:17:18 +0300 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2024-01-06 07:24:46 +0300 |
| commit | f5d4481c3edddf759e21e18751c168de879e3471 (patch) | |
| tree | 4cf2e703d6e8ae368814473d6d4a24b06e5e5c3a /fs/bcachefs/buckets.c | |
| parent | e7999235e6c437b99fad03d8301a4341be0d2bb5 (diff) | |
| download | linux-f5d4481c3edddf759e21e18751c168de879e3471.tar.xz | |
bcachefs: move "ptrs not changing" optimization to bch2_trigger_extent()
This is useful for btree ptrs as well, when we're just updating
sectors_written.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Diffstat (limited to 'fs/bcachefs/buckets.c')
| -rw-r--r-- | fs/bcachefs/buckets.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/fs/bcachefs/buckets.c b/fs/bcachefs/buckets.c index 67b7e79648b1..d83ea0e53df3 100644 --- a/fs/bcachefs/buckets.c +++ b/fs/bcachefs/buckets.c @@ -1023,6 +1023,18 @@ int bch2_trigger_extent(struct btree_trans *trans, struct bkey_s_c old, struct bkey_s new, unsigned flags) { + struct bkey_ptrs_c new_ptrs = bch2_bkey_ptrs_c(new.s_c); + struct bkey_ptrs_c old_ptrs = bch2_bkey_ptrs_c(old); + unsigned new_ptrs_bytes = (void *) new_ptrs.end - (void *) new_ptrs.start; + unsigned old_ptrs_bytes = (void *) old_ptrs.end - (void *) old_ptrs.start; + + /* if pointers aren't changing - nothing to do: */ + if (new_ptrs_bytes == old_ptrs_bytes && + !memcmp(new_ptrs.start, + old_ptrs.start, + new_ptrs_bytes)) + return 0; + if (flags & BTREE_TRIGGER_TRANSACTIONAL) { struct bch_fs *c = trans->c; int mod = (int) bch2_bkey_needs_rebalance(c, new.s_c) - |