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authorDan Williams <dan.j.williams@intel.com>2017-04-12 21:59:01 -0700
committerDan Williams <dan.j.williams@intel.com>2017-04-12 21:59:01 -0700
commitbfca9acf1a5df0ff98fbf47e363adb48612bb7ec (patch)
treea50287c88fdc60a73912d205d7bce41b7af53827 /net/unix/garbage.c
parent92a3fa075d3d2716b9c662814540f1d660cbf2f5 (diff)
parent11e63f6d920d6f2dfd3cd421e939a4aec9a58dcd (diff)
Merge branch 'for-4.11/libnvdimm' into for-4.12/dax
Diffstat (limited to 'net/unix/garbage.c')
-rw-r--r--net/unix/garbage.c17
1 files changed, 9 insertions, 8 deletions
diff --git a/net/unix/garbage.c b/net/unix/garbage.c
index 6a0d48525fcf..c36757e72844 100644
--- a/net/unix/garbage.c
+++ b/net/unix/garbage.c
@@ -146,6 +146,7 @@ void unix_notinflight(struct user_struct *user, struct file *fp)
if (s) {
struct unix_sock *u = unix_sk(s);
+ BUG_ON(!atomic_long_read(&u->inflight));
BUG_ON(list_empty(&u->link));
if (atomic_long_dec_and_test(&u->inflight))
@@ -341,6 +342,14 @@ void unix_gc(void)
}
list_del(&cursor);
+ /* Now gc_candidates contains only garbage. Restore original
+ * inflight counters for these as well, and remove the skbuffs
+ * which are creating the cycle(s).
+ */
+ skb_queue_head_init(&hitlist);
+ list_for_each_entry(u, &gc_candidates, link)
+ scan_children(&u->sk, inc_inflight, &hitlist);
+
/* not_cycle_list contains those sockets which do not make up a
* cycle. Restore these to the inflight list.
*/
@@ -350,14 +359,6 @@ void unix_gc(void)
list_move_tail(&u->link, &gc_inflight_list);
}
- /* Now gc_candidates contains only garbage. Restore original
- * inflight counters for these as well, and remove the skbuffs
- * which are creating the cycle(s).
- */
- skb_queue_head_init(&hitlist);
- list_for_each_entry(u, &gc_candidates, link)
- scan_children(&u->sk, inc_inflight, &hitlist);
-
spin_unlock(&unix_gc_lock);
/* Here we are. Hitlist is filled. Die. */