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authorOleg Nesterov <oleg@redhat.com>2024-02-09 14:06:50 +0100
committerChristian Brauner <brauner@kernel.org>2024-02-10 22:37:23 +0100
commit81b9d8ac0640b285a3c369cd41a85f6c240d3a60 (patch)
tree705697b20594d890f7494e2fd9ce6b3741ec59ef /kernel/fork.c
parentc044a9502649a66bf5c5e1a584cb82b2c538ae25 (diff)
pidfd: change pidfd_send_signal() to respect PIDFD_THREAD
Turn kill_pid_info() into kill_pid_info_type(), this allows to pass any pid_type to group_send_sig_info(), despite its name it should work fine even if type = PIDTYPE_PID. Change pidfd_send_signal() to use PIDTYPE_PID or PIDTYPE_TGID depending on PIDFD_THREAD. While at it kill another TODO comment in pidfd_show_fdinfo(). As Christian expains fdinfo reports f_flags, userspace can already detect PIDFD_THREAD. Reviewed-by: Tycho Andersen <tandersen@netflix.com> Signed-off-by: Oleg Nesterov <oleg@redhat.com> Link: https://lore.kernel.org/r/20240209130650.GA8048@redhat.com Signed-off-by: Christian Brauner <brauner@kernel.org>
Diffstat (limited to 'kernel/fork.c')
-rw-r--r--kernel/fork.c2
1 files changed, 0 insertions, 2 deletions
diff --git a/kernel/fork.c b/kernel/fork.c
index 4b6d994505ca..3f22ec90c5c6 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -2051,8 +2051,6 @@ static void pidfd_show_fdinfo(struct seq_file *m, struct file *f)
seq_put_decimal_ll(m, "Pid:\t", nr);
- /* TODO: report PIDFD_THREAD */
-
#ifdef CONFIG_PID_NS
seq_put_decimal_ll(m, "\nNSpid:\t", nr);
if (nr > 0) {