Author: mjg
Date: Tue Jan 24 21:48:57 2017
New Revision: 312723
URL: https://svnweb.freebsd.org/changeset/base/312723
Log:
proc: perform a lockless check in sys_issetugid
Discussed with: kib
MFC after: 1 week
Modified:
head/sys/kern/kern_prot.c
Modified: head/sys/kern/kern_prot.c
==============================================================================
--- head/sys/kern/kern_prot.c Tue Jan 24 21:30:31 2017 (r312722)
+++ head/sys/kern/kern_prot.c Tue Jan 24 21:48:57 2017 (r312723)
@@ -1225,9 +1225,7 @@ sys_issetugid(register struct thread *td
* a user without an exec - programs cannot know *everything*
* that libc *might* have put in their data segment.
*/
- PROC_LOCK(p);
td->td_retval[0] = (p->p_flag & P_SUGID) ? 1 : 0;
- PROC_UNLOCK(p);
return (0);
}
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