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authorOleg Nesterov <oleg@tv-sign.ru>2005-10-30 15:03:45 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2005-10-30 17:37:31 -0800
commit621d31219d9a788bda924a0613048053f3f5f211 (patch)
tree9fb9846fdd999ba04c436aa84c7da0d8233ac545 /kernel
parentb67a1b9e4bf878aa5d4b6b44cb5a251a2f425f0d (diff)
downloadblackbird-op-linux-621d31219d9a788bda924a0613048053f3f5f211.tar.gz
blackbird-op-linux-621d31219d9a788bda924a0613048053f3f5f211.zip
[PATCH] cleanup the usage of SEND_SIG_xxx constants
This patch simplifies some checks for magic siginfo values. It should not change the behaviour in any way. Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/signal.c18
1 files changed, 7 insertions, 11 deletions
diff --git a/kernel/signal.c b/kernel/signal.c
index 1f7b2aaa4a39..27533b90c347 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -651,9 +651,7 @@ static int check_kill_permission(int sig, struct siginfo *info,
if (!valid_signal(sig))
return error;
error = -EPERM;
- if ((info == SEND_SIG_NOINFO ||
- (info != SEND_SIG_PRIV && info != SEND_SIG_FORCED
- && SI_FROMUSER(info)))
+ if ((info == SEND_SIG_NOINFO || (!is_si_special(info) && SI_FROMUSER(info)))
&& ((sig != SIGCONT) ||
(current->signal->session != t->signal->session))
&& (current->euid ^ t->suid) && (current->euid ^ t->uid)
@@ -802,7 +800,7 @@ static int send_signal(int sig, struct siginfo *info, struct task_struct *t,
pass on the info struct. */
q = __sigqueue_alloc(t, GFP_ATOMIC, (sig < SIGRTMIN &&
- (info < SEND_SIG_FORCED ||
+ (is_si_special(info) ||
info->si_code >= 0)));
if (q) {
list_add_tail(&q->list, &signals->list);
@@ -825,16 +823,14 @@ static int send_signal(int sig, struct siginfo *info, struct task_struct *t,
copy_siginfo(&q->info, info);
break;
}
- } else {
- if (sig >= SIGRTMIN
- && info != SEND_SIG_NOINFO && info != SEND_SIG_PRIV
- && info->si_code != SI_USER)
+ } else if (!is_si_special(info)) {
+ if (sig >= SIGRTMIN && info->si_code != SI_USER)
/*
* Queue overflow, abort. We may abort if the signal was rt
* and sent by user using something other than kill().
*/
return -EAGAIN;
- if ((info > SEND_SIG_PRIV) && (info->si_code == SI_TIMER))
+ if (info->si_code == SI_TIMER)
/*
* Set up a return to indicate that we dropped
* the signal.
@@ -860,7 +856,7 @@ specific_send_sig_info(int sig, struct siginfo *info, struct task_struct *t)
BUG();
assert_spin_locked(&t->sighand->siglock);
- if ((info > SEND_SIG_FORCED) && (info->si_code == SI_TIMER))
+ if (!is_si_special(info) && (info->si_code == SI_TIMER))
/*
* Set up a return to indicate that we dropped the signal.
*/
@@ -1052,7 +1048,7 @@ __group_send_sig_info(int sig, struct siginfo *info, struct task_struct *p)
assert_spin_locked(&p->sighand->siglock);
handle_stop_signal(sig, p);
- if ((info > SEND_SIG_FORCED) && (info->si_code == SI_TIMER))
+ if (!is_si_special(info) && (info->si_code == SI_TIMER))
/*
* Set up a return to indicate that we dropped the signal.
*/
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