From mboxrd@z Thu Jan 1 00:00:00 1970 From: vineet.gupta1@synopsys.com (Vineet Gupta) Date: Thu, 10 Jan 2019 16:26:25 -0800 Subject: [PATCH 1/3] coredump: Replace opencoded set_mask_bits() In-Reply-To: <1547166387-19785-1-git-send-email-vgupta@synopsys.com> References: <1547166387-19785-1-git-send-email-vgupta@synopsys.com> List-ID: Message-ID: <1547166387-19785-2-git-send-email-vgupta@synopsys.com> To: linux-snps-arc@lists.infradead.org Cc: Alexander Viro Cc: Peter Zijlstra (Intel) Cc: linux-fsdevel at vger.kernel.org Cc: linux-kernel at vger.kernel.org Link: http://lkml.kernel.org/g/20150807115710.GA16897 at redhat.com Acked-by: Oleg Nesterov Signed-off-by: Vineet Gupta --- fs/exec.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) diff --git a/fs/exec.c b/fs/exec.c index fb72d36f7823..df7f05362283 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -1944,15 +1944,10 @@ EXPORT_SYMBOL(set_binfmt); */ void set_dumpable(struct mm_struct *mm, int value) { - unsigned long old, new; - if (WARN_ON((unsigned)value > SUID_DUMP_ROOT)) return; - do { - old = READ_ONCE(mm->flags); - new = (old & ~MMF_DUMPABLE_MASK) | value; - } while (cmpxchg(&mm->flags, old, new) != old); + set_mask_bits(&mm->flags, MMF_DUMPABLE_MASK, value); } SYSCALL_DEFINE3(execve, -- 2.7.4