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Message-Id: <1347798148-2660-1-git-send-email-linkinjeon@gmail.com>
Date: Sun, 16 Sep 2012 08:22:28 -0400
From: Namjae Jeon <linkinjeon@...il.com>
To: hirofumi@...l.parknet.co.jp, akpm@...ux-foundation.org
Cc: bfields@...ldses.org, viro@...iv.linux.org.uk,
linux-kernel@...r.kernel.org, Namjae Jeon <linkinjeon@...il.com>,
Namjae Jeon <namjae.jeon@...sung.com>,
Ravishankar N <ravi.n1@...sung.com>,
Amit Sahrawat <a.sahrawat@...sung.com>
Subject: [PATCH v3 2/5] fat: allocate persistent inode numbers
From: Namjae Jeon <namjae.jeon@...sung.com>
All the files on a FAT partition have an on-disk directory entry.
The location of these entries, i_pos, is unique and is constructed by
the fat_make_i_pos() function.We can use this as the inode number making
it persistent across remounts.
Signed-off-by: Namjae Jeon <namjae.jeon@...sung.com>
Signed-off-by: Ravishankar N <ravi.n1@...sung.com>
Signed-off-by: Amit Sahrawat <a.sahrawat@...sung.com>
---
fs/fat/inode.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/fs/fat/inode.c b/fs/fat/inode.c
index 2689ef5..c3dad9b 100644
--- a/fs/fat/inode.c
+++ b/fs/fat/inode.c
@@ -458,7 +458,10 @@ struct inode *fat_build_inode(struct super_block *sb,
inode = ERR_PTR(-ENOMEM);
goto out;
}
- inode->i_ino = iunique(sb, MSDOS_ROOT_INO);
+ if (MSDOS_SB(sb)->options.nfs == FAT_NFS_LIMITED)
+ inode->i_ino = i_pos;
+ else
+ inode->i_ino = iunique(sb, MSDOS_ROOT_INO);
inode->i_version = 1;
err = fat_fill_inode(inode, de);
if (err) {
--
1.7.9.5
--
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