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path: root/fs/vfat/namei.c
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Diffstat (limited to 'fs/vfat/namei.c')
-rw-r--r--fs/vfat/namei.c20
1 files changed, 6 insertions, 14 deletions
diff --git a/fs/vfat/namei.c b/fs/vfat/namei.c
index 1c6f6b57ef1c..ef46939c0c1a 100644
--- a/fs/vfat/namei.c
+++ b/fs/vfat/namei.c
@@ -621,8 +621,7 @@ static int vfat_build_slots(struct inode *dir, const unsigned char *name,
}
/* build the entry of long file name */
- for (cksum = i = 0; i < 11; i++)
- cksum = (((cksum&1)<<7)|((cksum&0xfe)>>1)) + msdos_name[i];
+ cksum = fat_checksum(msdos_name);
*nr_slots = usize / 13;
for (ps = slots, i = *nr_slots; i > 0; i--, ps++) {
@@ -888,10 +887,10 @@ static int vfat_rename(struct inode *old_dir, struct dentry *old_dentry,
{
struct buffer_head *dotdot_bh;
struct msdos_dir_entry *dotdot_de;
- loff_t dotdot_i_pos;
struct inode *old_inode, *new_inode;
struct fat_slot_info old_sinfo, sinfo;
struct timespec ts;
+ loff_t dotdot_i_pos, new_i_pos;
int err, is_dir, update_dotdot, corrupt = 0;
old_sinfo.bh = sinfo.bh = dotdot_bh = NULL;
@@ -914,31 +913,24 @@ static int vfat_rename(struct inode *old_dir, struct dentry *old_dentry,
ts = CURRENT_TIME_SEC;
if (new_inode) {
- err = vfat_find(new_dir, &new_dentry->d_name, &sinfo);
- if (err)
- goto out;
- if (MSDOS_I(new_inode)->i_pos != sinfo.i_pos) {
- /* WTF??? Cry and fail. */
- printk(KERN_WARNING "vfat_rename: fs corrupted\n");
- goto out;
- }
-
if (is_dir) {
err = fat_dir_empty(new_inode);
if (err)
goto out;
}
+ new_i_pos = MSDOS_I(new_inode)->i_pos;
fat_detach(new_inode);
} else {
err = vfat_add_entry(new_dir, &new_dentry->d_name, is_dir, 0,
&ts, &sinfo);
if (err)
goto out;
+ new_i_pos = sinfo.i_pos;
}
new_dir->i_version++;
fat_detach(old_inode);
- fat_attach(old_inode, sinfo.i_pos);
+ fat_attach(old_inode, new_i_pos);
if (IS_DIRSYNC(new_dir)) {
err = fat_sync_inode(old_inode);
if (err)
@@ -1002,7 +994,7 @@ error_inode:
fat_detach(old_inode);
fat_attach(old_inode, old_sinfo.i_pos);
if (new_inode) {
- fat_attach(new_inode, sinfo.i_pos);
+ fat_attach(new_inode, new_i_pos);
if (corrupt)
corrupt |= fat_sync_inode(new_inode);
} else {