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ubifs: Move ui->data initialization after initializing security

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Host inode and its' xattr will be written on disk after initializing
security when creating symlink or dev, then the host inode and its
dentry will be written again in ubifs_jnl_update.
There is no need to write inode data in the security initialization
pass, just move the ui->data initialization after initializing
security.

Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
This commit is contained in:
Zhihao Cheng 2024-04-10 15:37:48 +08:00 committed by Richard Weinberger
parent 7efc34b53b
commit 9f5ecacfce
1 changed files with 10 additions and 8 deletions
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18
fs/ubifs/dir.c
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@ -1102,16 +1102,18 @@ static int ubifs_mknod(struct mnt_idmap *idmap, struct inode *dir,
goto out_fname;
}
err = ubifs_init_security(dir, inode, &dentry->d_name);
if (err) {
kfree(dev);
goto out_inode;
}
init_special_inode(inode, inode->i_mode, rdev);
inode->i_size = ubifs_inode(inode)->ui_size = devlen;
ui = ubifs_inode(inode);
ui->data = dev;
ui->data_len = devlen;
err = ubifs_init_security(dir, inode, &dentry->d_name);
if (err)
goto out_inode;
mutex_lock(&dir_ui->ui_mutex);
dir->i_size += sz_change;
dir_ui->ui_size = dir->i_size;
@ -1184,6 +1186,10 @@ static int ubifs_symlink(struct mnt_idmap *idmap, struct inode *dir,
goto out_fname;
}
err = ubifs_init_security(dir, inode, &dentry->d_name);
if (err)
goto out_inode;
ui = ubifs_inode(inode);
ui->data = kmalloc(disk_link.len, GFP_NOFS);
if (!ui->data) {
@ -1209,10 +1215,6 @@ static int ubifs_symlink(struct mnt_idmap *idmap, struct inode *dir,
ui->data_len = disk_link.len - 1;
inode->i_size = ubifs_inode(inode)->ui_size = disk_link.len - 1;
err = ubifs_init_security(dir, inode, &dentry->d_name);
if (err)
goto out_inode;
mutex_lock(&dir_ui->ui_mutex);
dir->i_size += sz_change;
dir_ui->ui_size = dir->i_size;