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authorAl Viro <viro@zeniv.linux.org.uk>2008-07-26 08:39:17 +0400
committerAl Viro <viro@zeniv.linux.org.uk>2008-07-27 04:53:40 +0400
commit516e0cc5646f377ab80fcc2ee639892eccb99853 (patch)
treee06296dcedb42dbe397d237887873e70c5823d51 /net/unix/garbage.c
parent3c333937ee3be114b181c4861188cfe8f6a59697 (diff)
downloadlinux-516e0cc5646f377ab80fcc2ee639892eccb99853.tar.xz
[PATCH] f_count may wrap around
make it atomic_long_t; while we are at it, get rid of useless checks in affs, hfs and hpfs - ->open() always has it equal to 1, ->release() - to 0. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'net/unix/garbage.c')
-rw-r--r--net/unix/garbage.c18
1 files changed, 9 insertions, 9 deletions
diff --git a/net/unix/garbage.c b/net/unix/garbage.c
index ebdff3d877a1..2a27b84f740b 100644
--- a/net/unix/garbage.c
+++ b/net/unix/garbage.c
@@ -127,7 +127,7 @@ void unix_inflight(struct file *fp)
if(s) {
struct unix_sock *u = unix_sk(s);
spin_lock(&unix_gc_lock);
- if (atomic_inc_return(&u->inflight) == 1) {
+ if (atomic_long_inc_return(&u->inflight) == 1) {
BUG_ON(!list_empty(&u->link));
list_add_tail(&u->link, &gc_inflight_list);
} else {
@@ -145,7 +145,7 @@ void unix_notinflight(struct file *fp)
struct unix_sock *u = unix_sk(s);
spin_lock(&unix_gc_lock);
BUG_ON(list_empty(&u->link));
- if (atomic_dec_and_test(&u->inflight))
+ if (atomic_long_dec_and_test(&u->inflight))
list_del_init(&u->link);
unix_tot_inflight--;
spin_unlock(&unix_gc_lock);
@@ -237,17 +237,17 @@ static void scan_children(struct sock *x, void (*func)(struct unix_sock *),
static void dec_inflight(struct unix_sock *usk)
{
- atomic_dec(&usk->inflight);
+ atomic_long_dec(&usk->inflight);
}
static void inc_inflight(struct unix_sock *usk)
{
- atomic_inc(&usk->inflight);
+ atomic_long_inc(&usk->inflight);
}
static void inc_inflight_move_tail(struct unix_sock *u)
{
- atomic_inc(&u->inflight);
+ atomic_long_inc(&u->inflight);
/*
* If this is still a candidate, move it to the end of the
* list, so that it's checked even if it was already passed
@@ -288,11 +288,11 @@ void unix_gc(void)
* before the detach without atomicity guarantees.
*/
list_for_each_entry_safe(u, next, &gc_inflight_list, link) {
- int total_refs;
- int inflight_refs;
+ long total_refs;
+ long inflight_refs;
total_refs = file_count(u->sk.sk_socket->file);
- inflight_refs = atomic_read(&u->inflight);
+ inflight_refs = atomic_long_read(&u->inflight);
BUG_ON(inflight_refs < 1);
BUG_ON(total_refs < inflight_refs);
@@ -324,7 +324,7 @@ void unix_gc(void)
/* Move cursor to after the current position. */
list_move(&cursor, &u->link);
- if (atomic_read(&u->inflight) > 0) {
+ if (atomic_long_read(&u->inflight) > 0) {
list_move_tail(&u->link, &gc_inflight_list);
u->gc_candidate = 0;
scan_children(&u->sk, inc_inflight_move_tail, NULL);