files rcu optimization: Remove duplicated fget from fget_light.
The code for fget is contained in fget_light. So call fget
instead.
Signed-off-by: Christoph Lameter <[email protected]>
Index: linux-2.6.17/fs/file_table.c
===================================================================
--- linux-2.6.17.orig/fs/file_table.c 2006-06-22 14:03:54.484771991 -0700
+++ linux-2.6.17/fs/file_table.c 2006-06-22 14:03:57.773630982 -0700
@@ -226,16 +226,9 @@ struct file fastcall *fget_light(unsigne
if (likely((atomic_read(&files->count) == 1))) {
file = fcheck_files(files, fd);
} else {
- rcu_read_lock();
- file = fcheck_files(files, fd);
- if (file) {
- if (atomic_inc_not_zero(&file->f_count))
- *fput_needed = 1;
- else
- /* Didn't get the reference, someone's freed */
- file = NULL;
- }
- rcu_read_unlock();
+ file = fget(fd);
+ if (file)
+ *fput_needed = 1;
}
return file;
-
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