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

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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.

Link: https://lkml.kernel.org/r/20260215124511.14227-1-jaime.saguillo@gmail.com
Signed-off-by: Jaime Saguillo Revilla <jaime.saguillo@gmail.com>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Cc: Christian Brauner <brauner@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Jaime Saguillo Revilla
2026-02-15 12:45:11 +00:00
committed by Andrew Morton
parent 24f9515de8
commit 38d581ba76
1 changed files with 1 additions and 1 deletions
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2
fs/proc/array.c
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@@ -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);