tree 9541039708759d3cddf4a724090d3f3f54ab442d
parent 1722c14a2097634a7ba37000c0ec7d9409918b64
author Christian Brauner <christian.brauner@ubuntu.com> 1571307512 +0200
committer Christian Brauner <christian.brauner@ubuntu.com> 1571319420 +0200
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pid: use pid_has_task() in pidfd_open()

Use the new pid_has_task() helper in pidfd_open(). This simplifies the
code and avoids taking rcu_read_{lock,unlock}() and leads to overall
nicer code.

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Link: https://lore.kernel.org/r/20191017101832.5985-5-christian.brauner@ubuntu.com