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| author | Christian Brauner <christian.brauner@ubuntu.com> | 2021-10-11 16:32:44 +0300 |
|---|---|---|
| committer | Christian Brauner <christian.brauner@ubuntu.com> | 2021-10-14 14:29:18 +0300 |
| commit | e9bdcdbf6936dd1fbf419e00222dc9038b7812c2 (patch) | |
| tree | 1eabd32a68976f36fb256ad3c4b9723412adcea8 /include/linux/pid.h | |
| parent | 64570fbc14f8d7cb3fe3995f20e26bc25ce4b2cc (diff) | |
| download | linux-e9bdcdbf6936dd1fbf419e00222dc9038b7812c2.tar.xz | |
pid: add pidfd_get_task() helper
The number of system calls making use of pidfds is constantly
increasing. Some of those new system calls duplicate the code to turn a
pidfd into task_struct it refers to. Give them a simple helper for this.
Link: https://lore.kernel.org/r/20211004125050.1153693-2-christian.brauner@ubuntu.com
Link: https://lore.kernel.org/r/20211011133245.1703103-2-brauner@kernel.org
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Matthew Bobrowski <repnop@google.com>
Cc: Alexander Duyck <alexander.h.duyck@linux.intel.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Minchan Kim <minchan@kernel.org>
Reviewed-by: Matthew Bobrowski <repnop@google.com>
Acked-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
Diffstat (limited to 'include/linux/pid.h')
| -rw-r--r-- | include/linux/pid.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/pid.h b/include/linux/pid.h index af308e15f174..343abf22092e 100644 --- a/include/linux/pid.h +++ b/include/linux/pid.h @@ -78,6 +78,7 @@ struct file; extern struct pid *pidfd_pid(const struct file *file); struct pid *pidfd_get_pid(unsigned int fd, unsigned int *flags); +struct task_struct *pidfd_get_task(int pidfd, unsigned int *flags); int pidfd_create(struct pid *pid, unsigned int flags); static inline struct pid *get_pid(struct pid *pid) |