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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-06-17 10:24:53 +1000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-06-17 10:24:53 +1000 |
| commit | 492b057c426e4aa747484958e18e9da29003985d (patch) | |
| tree | 34e08c24618688d8bcc190523028b5f94cce0c0b /include/linux/list_nulls.h | |
| parent | 313485175da221c388f6a8ecf4c30062ba9bea17 (diff) | |
| parent | 300df7dc89cc276377fc020704e34875d5c473b6 (diff) | |
| download | blackbird-op-linux-492b057c426e4aa747484958e18e9da29003985d.tar.gz blackbird-op-linux-492b057c426e4aa747484958e18e9da29003985d.zip | |
Merge commit 'origin/master' into next
Diffstat (limited to 'include/linux/list_nulls.h')
| -rw-r--r-- | include/linux/list_nulls.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/include/linux/list_nulls.h b/include/linux/list_nulls.h index 93150ecf3ea4..5d10ae364b5e 100644 --- a/include/linux/list_nulls.h +++ b/include/linux/list_nulls.h @@ -56,6 +56,18 @@ static inline int hlist_nulls_empty(const struct hlist_nulls_head *h) return is_a_nulls(h->first); } +static inline void hlist_nulls_add_head(struct hlist_nulls_node *n, + struct hlist_nulls_head *h) +{ + struct hlist_nulls_node *first = h->first; + + n->next = first; + n->pprev = &h->first; + h->first = n; + if (!is_a_nulls(first)) + first->pprev = &n->next; +} + static inline void __hlist_nulls_del(struct hlist_nulls_node *n) { struct hlist_nulls_node *next = n->next; @@ -65,6 +77,12 @@ static inline void __hlist_nulls_del(struct hlist_nulls_node *n) next->pprev = pprev; } +static inline void hlist_nulls_del(struct hlist_nulls_node *n) +{ + __hlist_nulls_del(n); + n->pprev = LIST_POISON2; +} + /** * hlist_nulls_for_each_entry - iterate over list of given type * @tpos: the type * to use as a loop cursor. |
