diff options
Diffstat (limited to 'drivers/misc/cxl/file.c')
| -rw-r--r-- | drivers/misc/cxl/file.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/misc/cxl/file.c b/drivers/misc/cxl/file.c index 5cc14599837d..783337d22f36 100644 --- a/drivers/misc/cxl/file.c +++ b/drivers/misc/cxl/file.c @@ -201,8 +201,12 @@ static long afu_ioctl_start_work(struct cxl_context *ctx, * where a process (master, some daemon, etc) has opened the chardev on * behalf of another process, so the AFU's mm gets bound to the process * that performs this ioctl and not the process that opened the file. + * Also we grab the PID of the group leader so that if the task that + * has performed the attach operation exits the mm context of the + * process is still accessible. */ - ctx->pid = get_pid(get_task_pid(current, PIDTYPE_PID)); + ctx->pid = get_task_pid(current, PIDTYPE_PID); + ctx->glpid = get_task_pid(current->group_leader, PIDTYPE_PID); trace_cxl_attach(ctx, work.work_element_descriptor, work.num_interrupts, amr); |