Messages in this thread Patch in this message | | | From | Namjae Jeon <> | Subject | [PATCH v3 2/5] fat: allocate persistent inode numbers | Date | Sun, 16 Sep 2012 08:22:28 -0400 |
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From: Namjae Jeon <namjae.jeon@samsung.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@samsung.com> Signed-off-by: Ravishankar N <ravi.n1@samsung.com> Signed-off-by: Amit Sahrawat <a.sahrawat@samsung.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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