mainline inclusion from mainline-5.5-rc1 commit 06c1526da97dd0022973de3fc41b79b2d431b435 category: backport
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 colyli@suse.de Signed-off-by: Jens Axboe axboe@kernel.dk --- drivers/md/bcache/bset.c | 2 ++ 1 file changed, 2 insertions(+)
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);