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authorSteven J. Magnani <steve@digidescorp.com>2012-10-04 17:14:45 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-10-06 03:05:09 +0900
commit7669e8fb09da47dd45c07a51394f01031ea81da8 (patch)
tree1112667a0606e27999a18b8dae574ae8ad01a151 /fs/fat/namei_msdos.c
parent21b6633d516c4f5d03ec02ede6374e320191003f (diff)
downloadlinux-7669e8fb09da47dd45c07a51394f01031ea81da8.tar.bz2
fat (exportfs): fix dentry reconnection
Maintain an index of directory inodes by starting cluster, so that fat_get_parent() can return the proper cached inode rather than inventing one that cannot be traced back to the filesystem root. Add a new msdos/vfat binary mount option "nfs" so that FAT filesystems that are _not_ exported via NFS are not saddled with maintenance of an index they will never use. Finally, simplify NFS file handle generation and lookups. An ext2-congruent implementation is adequate for FAT needs. Signed-off-by: Steven J. Magnani <steve@digidescorp.com> Acked-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/fat/namei_msdos.c')
-rw-r--r--fs/fat/namei_msdos.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/fs/fat/namei_msdos.c b/fs/fat/namei_msdos.c
index b0e12bf9f4a1..c27c63020292 100644
--- a/fs/fat/namei_msdos.c
+++ b/fs/fat/namei_msdos.c
@@ -440,7 +440,7 @@ static int do_msdos_rename(struct inode *old_dir, unsigned char *old_name,
struct inode *old_inode, *new_inode;
struct fat_slot_info old_sinfo, sinfo;
struct timespec ts;
- loff_t dotdot_i_pos, new_i_pos;
+ loff_t new_i_pos;
int err, old_attrs, is_dir, update_dotdot, corrupt = 0;
old_sinfo.bh = sinfo.bh = dotdot_bh = NULL;
@@ -456,8 +456,7 @@ static int do_msdos_rename(struct inode *old_dir, unsigned char *old_name,
is_dir = S_ISDIR(old_inode->i_mode);
update_dotdot = (is_dir && old_dir != new_dir);
if (update_dotdot) {
- if (fat_get_dotdot_entry(old_inode, &dotdot_bh, &dotdot_de,
- &dotdot_i_pos) < 0) {
+ if (fat_get_dotdot_entry(old_inode, &dotdot_bh, &dotdot_de)) {
err = -EIO;
goto out;
}