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Message-ID: <20090429124719.19278.51952.stgit@warthog.procyon.org.uk>
Date: Wed, 29 Apr 2009 13:47:19 +0100
From: David Howells <dhowells@...hat.com>
To: linux-security-module@...r.kernel.org, jmorris@...ei.org
Cc: dhowells@...hat.com, oleg@...hat.com, linux-kernel@...r.kernel.org
Subject: [PATCH] SELinux: Remove excessive interrupt disablement
There's no need to disable interrupts with spin_lock_irqsave() inside of
read_lock_irq().
Signed-off-by: David Howells <dhowells@...hat.com>
---
security/selinux/hooks.c | 5 ++---
1 files changed, 2 insertions(+), 3 deletions(-)
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index ba808ef..0702ba6 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -2378,7 +2378,6 @@ static void selinux_bprm_committed_creds(struct linux_binprm *bprm)
struct sighand_struct *psig;
u32 osid, sid;
int rc, i;
- unsigned long flags;
osid = tsec->osid;
sid = tsec->sid;
@@ -2410,9 +2409,9 @@ static void selinux_bprm_committed_creds(struct linux_binprm *bprm)
* wait permission to the new task SID. */
read_lock_irq(&tasklist_lock);
psig = current->parent->sighand;
- spin_lock_irqsave(&psig->siglock, flags);
+ spin_lock(&psig->siglock);
wake_up_interruptible(¤t->parent->signal->wait_chldexit);
- spin_unlock_irqrestore(&psig->siglock, flags);
+ spin_unlock(&psig->siglock);
read_unlock_irq(&tasklist_lock);
}
--
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