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bcachefs: Split out __btree_path_up_until_good_node()

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This breaks up btree_path_up_until_good_node() so that only the fastpath
gets inlined.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2022-10-17 02:04:31 -04:00
parent b2f83e769f
commit 29aa78f15e
1 changed files with 24 additions and 10 deletions
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34
fs/bcachefs/btree_iter.c
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@ -994,14 +994,9 @@ err:
return ret;
}
static inline bool btree_path_good_node(struct btree_trans *trans,
struct btree_path *path,
unsigned l, int check_pos)
static inline bool btree_path_check_pos_in_node(struct btree_path *path,
unsigned l, int check_pos)
{
if (!is_btree_node(path, l) ||
!bch2_btree_node_relock(trans, path, l))
return false;
if (check_pos < 0 && btree_path_pos_before_node(path, path->l[l].b))
return false;
if (check_pos > 0 && btree_path_pos_after_node(path, path->l[l].b))
@ -1009,6 +1004,15 @@ static inline bool btree_path_good_node(struct btree_trans *trans,
return true;
}
static inline bool btree_path_good_node(struct btree_trans *trans,
struct btree_path *path,
unsigned l, int check_pos)
{
return is_btree_node(path, l) &&
bch2_btree_node_relock(trans, path, l) &&
btree_path_check_pos_in_node(path, l, check_pos);
}
static void btree_path_set_level_down(struct btree_trans *trans,
struct btree_path *path,
unsigned new_level)
@ -1025,9 +1029,9 @@ static void btree_path_set_level_down(struct btree_trans *trans,
bch2_btree_path_verify(trans, path);
}
static inline unsigned btree_path_up_until_good_node(struct btree_trans *trans,
struct btree_path *path,
int check_pos)
static noinline unsigned __btree_path_up_until_good_node(struct btree_trans *trans,
struct btree_path *path,
int check_pos)
{
unsigned i, l = path->level;
again:
@ -1048,6 +1052,16 @@ again:
return l;
}
static inline unsigned btree_path_up_until_good_node(struct btree_trans *trans,
struct btree_path *path,
int check_pos)
{
return likely(btree_node_locked(path, path->level) &&
btree_path_check_pos_in_node(path, path->level, check_pos))
? path->level
: __btree_path_up_until_good_node(trans, path, check_pos);
}
/*
* This is the main state machine for walking down the btree - walks down to a
* specified depth