proc: smaller RCU section in ->getattr()

struct kstat is thread local. Link: http://lkml.kernel.org/r/20180423213626.GB9043@avx2 Signed-off-by: Alexey Dobriyan <[email protected]> Reviewed-by: Andrew Morton <[email protected]> Cc: Al Viro <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
vieko · Jun 8, 2018 · 9411692 · 9411692
1 parent 3cb4e16
commit 9411692
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/fs/proc/base.c b/fs/proc/base.c
@@ -1755,9 +1755,9 @@ int pid_getattr(const struct path *path, struct kstat *stat,
 
 	generic_fillattr(inode, stat);
 
-	rcu_read_lock();
 	stat->uid = GLOBAL_ROOT_UID;
 	stat->gid = GLOBAL_ROOT_GID;
+	rcu_read_lock();
 	task = pid_task(proc_pid(inode), PIDTYPE_PID);
 	if (task) {
 		if (!has_pid_permissions(pid, task, HIDEPID_INVISIBLE)) {