[PATCH] proc: array: drop stale FIXME about RCU in task_sig()

Jaime Saguillo Revilla
2026-02-15T12:45:57Z

task_sig() already wraps the SigQ rlimit read in an explicit RCU
read-side critical section. Drop the stale FIXME comment and keep using
task_ucounts() for the ucounts access.

No functional change.

Signed-off-by: Jaime Saguillo Revilla <jaime.saguillo@gmail.com>
---
fs/proc/array.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/proc/array.c b/fs/proc/array.c
index f447e734612a..90fb0c6b5f99 100644
--- a/fs/proc/array.c
+++ b/fs/proc/array.c
@@ -280,7 +280,7 @@ static inline void task_sig(struct seq_file *m, struct task_struct *p)
blocked = p->blocked;
collect_sigign_sigcatch(p, &ignored, &caught);
num_threads = get_nr_threads(p);
- rcu_read_lock(); /* FIXME: is this correct? */
+ rcu_read_lock();
qsize = get_rlimit_value(task_ucounts(p), UCOUNT_RLIMIT_SIGPENDING);
rcu_read_unlock();
qlim = task_rlimit(p, RLIMIT_SIGPENDING);
--
2.34.1