]> err.no Git - linux-2.6/commitdiff
Preempt-safe RCU file usage
authorLinus Torvalds <torvalds@g5.osdl.org>
Fri, 9 Sep 2005 22:42:34 +0000 (15:42 -0700)
committerLinus Torvalds <torvalds@g5.osdl.org>
Fri, 9 Sep 2005 22:42:34 +0000 (15:42 -0700)
Fix up fs/compat.c fixes.

fs/compat.c

index c2e0813164b458bb9fa93e383be7f967f63aff21..ac3fb9ed8eeaf847fcd2238edb2f941d7125b7a4 100644 (file)
@@ -1645,8 +1645,10 @@ compat_sys_select(int n, compat_ulong_t __user *inp, compat_ulong_t __user *outp
                goto out_nofds;
 
        /* max_fdset can increase, so grab it once to avoid race */
+       rcu_read_lock();
        fdt = files_fdtable(current->files);
        max_fdset = fdt->max_fdset;
+       rcu_read_unlock();
        if (n > max_fdset)
                n = max_fdset;