Commit 94116929 authored Jun 07, 2018 by Alexey Dobriyan Committed by Linus Torvalds Jun 07, 2018

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 <adobriyan@gmail.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent 3cb4e162

fs/proc/base.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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)) {