void
gra2cairo_remove_fontmap(const char *fontalias)
{
struct fontmap *fnew;
if (nhash_get_ptr(Gra2cairoConf->fontmap, fontalias, (void *) &fnew) == 0) {
free_font_map(fnew);
nhash_del(Gra2cairoConf->fontmap, fontalias);
}
}
int aufs_rmdir(struct inode *dir, struct dentry *dentry)
{
int err, rmdir_later;
struct inode *inode, *hidden_dir;
struct dentry *parent, *wh_dentry, *hidden_dentry, *hidden_parent;
struct dtime dt;
aufs_bindex_t bwh, bindex, bstart;
struct rmdir_whtmp_arg *arg;
struct aufs_nhash *whlist;
LKTRTrace("i%lu, %.*s\n", dir->i_ino, DLNPair(dentry));
IMustLock(dir);
inode = dentry->d_inode;
if (unlikely(!inode))
return -ENOENT; // possible?
IMustLock(inode);
whlist = nhash_new(GFP_KERNEL);
err = PTR_ERR(whlist);
if (IS_ERR(whlist))
goto out;
err = -ENOMEM;
arg = kmalloc(sizeof(*arg), GFP_KERNEL);
//arg = NULL;
if (unlikely(!arg))
goto out_whlist;
aufs_read_lock(dentry, AUFS_D_WLOCK);
parent = dentry->d_parent;
di_write_lock_parent(parent);
err = test_empty(dentry, whlist);
//err = -1;
if (unlikely(err))
goto out_arg;
bstart = dbstart(dentry);
bwh = dbwh(dentry);
bindex = -1;
wh_dentry = lock_hdir_create_wh(dentry, /*isdir*/ 1, &bindex, &dt);
//wh_dentry = ERR_PTR(-1);
err = PTR_ERR(wh_dentry);
if (IS_ERR(wh_dentry))
goto out_arg;
hidden_dentry = au_h_dptr(dentry);
dget(hidden_dentry);
hidden_parent = hidden_dentry->d_parent;
hidden_dir = hidden_parent->d_inode;
rmdir_later = 0;
if (bindex == bstart) {
IMustLock(hidden_dir);
err = renwh_and_rmdir(dentry, bstart, whlist, dir);
//err = -1;
if (err > 0) {
rmdir_later = err;
err = 0;
}
} else {
DEBUG_ON(!wh_dentry);
hidden_parent = wh_dentry->d_parent;
DEBUG_ON(hidden_parent != au_h_dptr_i(parent, bindex));
hidden_dir = hidden_parent->d_inode;
IMustLock(hidden_dir);
err = 0;
}
if (!err) {
au_reset_hinotify(inode, /*flags*/0);
inode->i_nlink = 0;
set_dbdiropq(dentry, -1);
epilog(dir, dentry, bindex);
if (rmdir_later) {
kick_rmdir_whtmp(hidden_dentry, whlist, bstart, dir,
inode, arg);
arg = NULL;
}
goto out_unlock; /* success */
}
/* revert */
LKTRLabel(revert);
if (wh_dentry) {
int rerr;
rerr = do_revert(err, wh_dentry, dentry, bwh, &dt,
need_dlgt(dir->i_sb));
if (rerr)
err = rerr;
}
out_unlock:
hdir_unlock(hidden_dir, dir, bindex);
dput(wh_dentry);
dput(hidden_dentry);
out_arg:
di_write_unlock(parent);
aufs_read_unlock(dentry, AUFS_D_WLOCK);
kfree(arg);
out_whlist:
nhash_del(whlist);
out:
TraceErr(err);
return err;
}
