From 06c1526da97dd0022973de3fc41b79b2d431b435 Mon Sep 17 00:00:00 2001 From: Coly Li Date: Wed, 13 Nov 2019 16:03:20 +0800 Subject: bcache: add code comment bch_keylist_pop() and bch_keylist_pop_front() This patch adds simple code comments for bch_keylist_pop() and bch_keylist_pop_front() in bset.c, to make the code more easier to be understand. Signed-off-by: Coly Li Signed-off-by: Jens Axboe --- drivers/md/bcache/bset.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/md') diff --git a/drivers/md/bcache/bset.c b/drivers/md/bcache/bset.c index 08768796b543..f37a429f093d 100644 --- a/drivers/md/bcache/bset.c +++ b/drivers/md/bcache/bset.c @@ -155,6 +155,7 @@ int __bch_keylist_realloc(struct keylist *l, unsigned int u64s) return 0; } +/* Pop the top key of keylist by pointing l->top to its previous key */ struct bkey *bch_keylist_pop(struct keylist *l) { struct bkey *k = l->keys; @@ -168,6 +169,7 @@ struct bkey *bch_keylist_pop(struct keylist *l) return l->top = k; } +/* Pop the bottom key of keylist and update l->top_p */ void bch_keylist_pop_front(struct keylist *l) { l->top_p -= bkey_u64s(l->keys); -- cgit v1.2.3