From: Oleg Nesterov <oleg@redhat.com>
Date: Mon, 13 Jan 2014 15:49:06 +0000 (+0100)
Subject: fs: __fget_light() can use __fget() in slow path
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=e6ff9a9fa4e05c1c03dec63cdc6a87d6dea02755;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

fs: __fget_light() can use __fget() in slow path

The slow path in __fget_light() can use __fget() to avoid the
code duplication. Saves 232 bytes.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---

diff --git a/fs/file.c b/fs/file.c
index 50c1208f6450..771578b33fb6 100644
--- a/fs/file.c
+++ b/fs/file.c
@@ -694,17 +694,9 @@ struct file *__fget_light(unsigned int fd, fmode_t mask, int *fput_needed)
 		if (file && (file->f_mode & mask))
 			file = NULL;
 	} else {
-		rcu_read_lock();
-		file = fcheck_files(files, fd);
-		if (file) {
-			if (!(file->f_mode & mask) &&
-			    atomic_long_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, mask);
+		if (file)
+			*fput_needed = 1;
 	}
 
 	return file;