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authorMatthew Bobrowski <repnop@google.com>2021-08-08 15:24:33 +1000
committerJan Kara <jack@suse.cz>2021-08-10 12:53:04 +0200
commitc576e0fcd6188d0edb50b0fb83f853433ef4819b (patch)
tree9258197f8c86210e351e1e6e4f53b4397f55541b /kernel/pid.c
parent902e7f373fff2476b53824264c12e4e76c7ec02a (diff)
kernel/pid.c: remove static qualifier from pidfd_create()
With the idea of returning pidfds from the fanotify API, we need to expose a mechanism for creating pidfds. We drop the static qualifier from pidfd_create() and add its declaration to linux/pid.h so that the pidfd_create() helper can be called from other kernel subsystems i.e. fanotify. Link: https://lore.kernel.org/r/0c68653ec32f1b7143301f0231f7ed14062fd82b.1628398044.git.repnop@google.com Signed-off-by: Matthew Bobrowski <repnop@google.com> Acked-by: Christian Brauner <christian.brauner@ubuntu.com> Signed-off-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'kernel/pid.c')
-rw-r--r--kernel/pid.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/kernel/pid.c b/kernel/pid.c
index ebdf9c60cd0b..d3cd95b8b080 100644
--- a/kernel/pid.c
+++ b/kernel/pid.c
@@ -550,10 +550,12 @@ struct pid *pidfd_get_pid(unsigned int fd, unsigned int *flags)
* Note, that this function can only be called after the fd table has
* been unshared to avoid leaking the pidfd to the new process.
*
+ * This symbol should not be explicitly exported to loadable modules.
+ *
* Return: On success, a cloexec pidfd is returned.
* On error, a negative errno number will be returned.
*/
-static int pidfd_create(struct pid *pid, unsigned int flags)
+int pidfd_create(struct pid *pid, unsigned int flags)
{
int fd;