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[v2,11/40] mm: export symbol find_get_task_by_vpid

Message ID 20180511190641.23008-12-jean-philippe.brucker@arm.com (mailing list archive)
State New, archived
Headers show

Commit Message

Jean-Philippe Brucker May 11, 2018, 7:06 p.m. UTC 
Userspace drivers implemented with VFIO might want to bind sub-processes
to their devices. In a VFIO ioctl, they provide a pid that is used to find
a task and its mm. Since VFIO can be built as a module, export the
find_get_task_by_vpid symbol.

Cc: akpm@linux-foundation.org
Signed-off-by: Jean-Philippe Brucker <jean-philippe.brucker@arm.com>

---
Here I didn't add a comment because neighbouring functions that get
exported don't have a comment either, and the name seems fairly clear.
---
 kernel/pid.c | 1 +
 1 file changed, 1 insertion(+)
diff mbox

Patch

diff --git a/kernel/pid.c b/kernel/pid.c
index 157fe4b19971..0b6d3201c42d 100644
--- a/kernel/pid.c
+++ b/kernel/pid.c
@@ -355,6 +355,7 @@  struct task_struct *find_get_task_by_vpid(pid_t nr)
 
 	return task;
 }
+EXPORT_SYMBOL_GPL(find_get_task_by_vpid);
 
 struct pid *get_task_pid(struct task_struct *task, enum pid_type type)
 {