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bcache: Add bch_keylist_init_single()

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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: Kent Overstreet <kmo@daterainc.com>
This commit is contained in:
Kent Overstreet 2014-01-08 21:22:02 -08:00
parent 1575402052
commit c13f3af924
2 changed files with 7 additions and 4 deletions
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6
drivers/md/bcache/bset.h
View file

@ -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);

5
drivers/md/bcache/journal.c
View file

@ -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)