From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754107Ab2HRJnK (ORCPT ); Sat, 18 Aug 2012 05:43:10 -0400 Received: from mail-pz0-f46.google.com ([209.85.210.46]:59256 "EHLO mail-pz0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753940Ab2HRJmp (ORCPT ); Sat, 18 Aug 2012 05:42:45 -0400 From: Namjae Jeon To: hirofumi@mail.parknet.co.jp, akpm@linux-foundation.org Cc: linux-kernel@vger.kernel.org, Namjae Jeon , Namjae Jeon , Ravishankar N , Amit Sahrawat Subject: [PATCH 1/4] fat: allocate persistent inode numbers Date: Sat, 18 Aug 2012 05:42:31 -0400 Message-Id: <1345282951-7569-1-git-send-email-linkinjeon@gmail.com> X-Mailer: git-send-email 1.7.9.5 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Namjae Jeon 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 peristent across remounts. Signed-off-by: Namjae Jeon Signed-off-by: Ravishankar N Signed-off-by: Amit Sahrawat --- fs/fat/inode.c | 2 +- fs/fat/namei_vfat.c | 1 + 2 files changed, 2 insertions(+), 1 deletion(-) diff --git a/fs/fat/inode.c b/fs/fat/inode.c index 973296b..cf111a0 100644 --- a/fs/fat/inode.c +++ b/fs/fat/inode.c @@ -458,7 +458,7 @@ struct inode *fat_build_inode(struct super_block *sb, inode = ERR_PTR(-ENOMEM); goto out; } - inode->i_ino = iunique(sb, MSDOS_ROOT_INO); + inode->i_ino = i_pos; inode->i_version = 1; err = fat_fill_inode(inode, de); if (err) { diff --git a/fs/fat/namei_vfat.c b/fs/fat/namei_vfat.c index e535dd7..ffb4814 100644 --- a/fs/fat/namei_vfat.c +++ b/fs/fat/namei_vfat.c @@ -954,6 +954,7 @@ static int vfat_rename(struct inode *old_dir, struct dentry *old_dentry, new_dir->i_version++; fat_detach(old_inode); + old_inode->i_ino = new_i_pos; fat_attach(old_inode, new_i_pos); if (IS_DIRSYNC(new_dir)) { err = fat_sync_inode(old_inode); -- 1.7.9.5