提交 9305cfa4 编写于 作者: P Pavel Emelyanov 提交者: David S. Miller

[AF_UNIX]: Make unix_tot_inflight counter non-atomic

This counter is _always_ modified under the unix_gc_lock spinlock, 
so its atomicity can be provided w/o additional efforts.
Signed-off-by: NPavel Emelyanov <xemul@openvz.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
上级 8032b464
......@@ -12,7 +12,7 @@ extern void unix_gc(void);
#define UNIX_HASH_SIZE 256
extern atomic_t unix_tot_inflight;
extern unsigned int unix_tot_inflight;
struct unix_address {
atomic_t refcnt;
......
......@@ -457,7 +457,7 @@ static int unix_release_sock (struct sock *sk, int embrion)
* What the above comment does talk about? --ANK(980817)
*/
if (atomic_read(&unix_tot_inflight))
if (unix_tot_inflight)
unix_gc(); /* Garbage collect fds */
return 0;
......
......@@ -92,7 +92,7 @@ static LIST_HEAD(gc_inflight_list);
static LIST_HEAD(gc_candidates);
static DEFINE_SPINLOCK(unix_gc_lock);
atomic_t unix_tot_inflight = ATOMIC_INIT(0);
unsigned int unix_tot_inflight;
static struct sock *unix_get_socket(struct file *filp)
......@@ -133,7 +133,7 @@ void unix_inflight(struct file *fp)
} else {
BUG_ON(list_empty(&u->link));
}
atomic_inc(&unix_tot_inflight);
unix_tot_inflight++;
spin_unlock(&unix_gc_lock);
}
}
......@@ -147,7 +147,7 @@ void unix_notinflight(struct file *fp)
BUG_ON(list_empty(&u->link));
if (atomic_dec_and_test(&u->inflight))
list_del_init(&u->link);
atomic_dec(&unix_tot_inflight);
unix_tot_inflight--;
spin_unlock(&unix_gc_lock);
}
}
......
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