drm/amdgpu: add VEGAM VCE firmware support

[linux.git] / mm / process_vm_access.c

diff --git a/mm/process_vm_access.c b/mm/process_vm_access.c
index 8973cd231ecee9c194376045cf7d9c2054d2a4b7..a447092d4635a08a31bcc4f527a66ab5b75083ae 100644 (file)
--- a/mm/process_vm_access.c
+++ b/mm/process_vm_access.c
@@ -25,7 +25,7 @@
 /**
  * process_vm_rw_pages - read/write pages from task specified
  * @pages: array of pointers to pages we want to copy
- * @start_offset: offset in page to start copying from/to
+ * @offset: offset in page to start copying from/to
  * @len: number of bytes to copy
  * @iter: where to copy to/from locally
  * @vm_write: 0 means copy from, 1 means copy to
@@ -147,6 +147,7 @@ static int process_vm_rw_single_vec(unsigned long addr,
  * @riovcnt: size of rvec array
  * @flags: currently unused
  * @vm_write: 0 if reading from other process, 1 if writing to other process
+ *
  * Returns the number of bytes read/written or error code. May
  *  return less bytes than expected if an error occurs during the copying
  *  process.
@@ -197,11 +198,7 @@ static ssize_t process_vm_rw_core(pid_t pid, struct iov_iter *iter,
        }
 
        /* Get process information */
-       rcu_read_lock();
-       task = find_task_by_vpid(pid);
-       if (task)
-               get_task_struct(task);
-       rcu_read_unlock();
+       task = find_get_task_by_vpid(pid);
        if (!task) {
                rc = -ESRCH;
                goto free_proc_pages;
@@ -253,6 +250,7 @@ static ssize_t process_vm_rw_core(pid_t pid, struct iov_iter *iter,
  * @riovcnt: size of rvec array
  * @flags: currently unused
  * @vm_write: 0 if reading from other process, 1 if writing to other process
+ *
  * Returns the number of bytes read/written or error code. May
  *  return less bytes than expected if an error occurs during the copying
  *  process.