From: Al Viro <viro@zeniv.linux.org.uk>
Date: Mon, 27 Aug 2012 00:30:57 +0000 (-0400)
Subject: switch readahead(2) to fget_light()
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=132ea2479f77dd598f11a77bdfebbd23d244ce6f;p=GitHub%2Fmt8127%2Fandroid_kernel_alcatel_ttab.git

switch readahead(2) to fget_light()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---

diff --git a/mm/readahead.c b/mm/readahead.c
index ea8f8fa21649..1011111e2bf4 100644
--- a/mm/readahead.c
+++ b/mm/readahead.c
@@ -580,9 +580,10 @@ SYSCALL_DEFINE(readahead)(int fd, loff_t offset, size_t count)
 {
 	ssize_t ret;
 	struct file *file;
+	int fput_needed;
 
 	ret = -EBADF;
-	file = fget(fd);
+	file = fget_light(fd, &fput_needed);
 	if (file) {
 		if (file->f_mode & FMODE_READ) {
 			struct address_space *mapping = file->f_mapping;
@@ -591,7 +592,7 @@ SYSCALL_DEFINE(readahead)(int fd, loff_t offset, size_t count)
 			unsigned long len = end - start + 1;
 			ret = do_readahead(mapping, file, start, len);
 		}
-		fput(file);
+		fput_light(file, fput_needed);
 	}
 	return ret;
 }