From: Evgeniy Dushistov <dushistov@mail.ru>
Date: Tue, 6 Jan 2009 22:42:38 +0000 (-0800)
Subject: minix: fix add link's wrong position calculation
X-Git-Tag: v2.6.27.12~76
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=a79fdfe90a3795eabf04430400ecb4711d939c5f;p=thirdparty%2Fkernel%2Fstable.git

minix: fix add link's wrong position calculation

commit d6b54841f4ddd836c886d1e6ac381cf309ee98a3 upstream.

Fix the add link method.  The oosition in the directory was calculated in
wrong way - it had the incorrect shift direction.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Evgeniy Dushistov <dushistov@mail.ru>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/fs/minix/dir.c b/fs/minix/dir.c
index f70433816a380..d4946c4c90e2f 100644
--- a/fs/minix/dir.c
+++ b/fs/minix/dir.c
@@ -280,7 +280,7 @@ int minix_add_link(struct dentry *dentry, struct inode *inode)
 	return -EINVAL;
 
 got_it:
-	pos = (page->index >> PAGE_CACHE_SHIFT) + p - (char*)page_address(page);
+	pos = page_offset(page) + p - (char *)page_address(page);
 	err = __minix_write_begin(NULL, page->mapping, pos, sbi->s_dirsize,
 					AOP_FLAG_UNINTERRUPTIBLE, &page, NULL);
 	if (err)