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| author | Kent Overstreet <kent.overstreet@linux.dev> | 2022-11-01 03:30:27 +0300 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2023-10-23 00:09:45 +0300 |
| commit | 182c7bbfbfe8d435672b8cb9730b07e88e103670 (patch) | |
| tree | 61238500bdf507fcab5c8d79a5b23d24ec824a0f /fs/bcachefs/keylist.h | |
| parent | 1df3e19996a3b29ed82315bf03cb02ac4e4e70ab (diff) | |
| download | linux-182c7bbfbfe8d435672b8cb9730b07e88e103670.tar.xz | |
bcachefs: DIO write path optimization
- With BCH_WRITE_SYNC, we no longer need the completion in struct
dio_write
- Pull out bch2_dio_write_copy_iov() into a separate non-inline
function, it's code that doesn't run in the common case
- Copy mapping and inode pointers into dio_write, avoiding pointer
chasing at the start of bch2_dio_write_loop()
- kthread_use_mm() is not needed in the common case; move it into
bch2_dio_write_loop_async()
- factor out various helpers from bch2_dio_write_loop() and rework
control flow for better icache utilization
Other small optimizations:
- bch2_keylist_free() is only used in one place, at the end of the
bch2_write() path - drop the reinit
- in bch2_disk_reservation_put(), check if res->sectors is nonzero
before touching c->online_reserved, since that will likely be a cache
miss
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
bcachefs: More DIO write path optimization
Better code prefetching (?)
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Diffstat (limited to 'fs/bcachefs/keylist.h')
| -rw-r--r-- | fs/bcachefs/keylist.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/fs/bcachefs/keylist.h b/fs/bcachefs/keylist.h index 195799bb20bc..635efb7e8228 100644 --- a/fs/bcachefs/keylist.h +++ b/fs/bcachefs/keylist.h @@ -17,7 +17,6 @@ static inline void bch2_keylist_free(struct keylist *l, u64 *inline_keys) { if (l->keys_p != inline_keys) kfree(l->keys_p); - bch2_keylist_init(l, inline_keys); } static inline void bch2_keylist_push(struct keylist *l) |