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[PATCH] fat: remove the unneeded vfat_find() in vfat_rename()

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Now, vfat_rename() is using vfat_find() for sanity check.  This removes that
sanity check, the cost of sanity check is too high.

Signed-off-by: OGAWA Hirofumi <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
OGAWA Hirofumi 2005-10-30 15:03:50 -08:00 • committed by Linus Torvalds
commit 9131dd4256
2 changed files with 10 additions and 21 deletions
Download patch file Download diff file Expand all files Collapse all files

17
fs/vfat/namei.c
View file

@ -887,10 +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;
@ -913,31 +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)
@ -1001,7 +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 {