* [PATCH] proc: smaller RCU section in ->getattr()
@ 2018-04-23 21:36 Alexey Dobriyan
0 siblings, 0 replies; only message in thread
From: Alexey Dobriyan @ 2018-04-23 21:36 UTC (permalink / raw)
To: akpm; +Cc: linux-kernel
struct kstat is thread local.
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
---
fs/proc/base.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -1787,9 +1787,9 @@ 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)) {
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2018-04-23 21:36 [PATCH] proc: smaller RCU section in ->getattr() Alexey Dobriyan
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