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Commit c13f3af9 authored by Kent Overstreet's avatar Kent Overstreet
Browse files

bcache: Add bch_keylist_init_single() 



This will potentially save us an allocation when we've got inode/dirent bkeys
that don't fit in the keylist's inline keys.

Signed-off-by: default avatarKent Overstreet <kmo@daterainc.com>
parent 15754020

drivers/md/bcache/bset.h

+6 −0
Original line number Diff line number Diff line
@@ -478,6 +478,12 @@ static inline void bch_keylist_init(struct keylist *l) 
	l->top_p = l->keys_p = l->inline_keys;

}



static inline void bch_keylist_init_single(struct keylist *l, struct bkey *k)

{

	l->keys = k;

	l->top = bkey_next(k);

}



static inline void bch_keylist_push(struct keylist *l)

{

	l->top = bkey_next(l->top);

drivers/md/bcache/journal.c

+1 −4
Original line number Diff line number Diff line
@@ -313,8 +313,6 @@ int bch_journal_replay(struct cache_set *s, struct list_head *list) 
	uint64_t start = i->j.last_seq, end = i->j.seq, n = start;

	struct keylist keylist;



	bch_keylist_init(&keylist);



	list_for_each_entry(i, list, list) {

		BUG_ON(i->pin && atomic_read(i->pin) != 1);
@@ -327,8 +325,7 @@ int bch_journal_replay(struct cache_set *s, struct list_head *list) 
		     k = bkey_next(k)) {

			trace_bcache_journal_replay_key(k);



			bkey_copy(keylist.top, k);

			bch_keylist_push(&keylist);

			bch_keylist_init_single(&keylist, k);



			ret = bch_btree_insert(s, &keylist, i->pin, NULL);

			if (ret)