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[23/25] ubifs: transfer quota information in changing owner or group

Message ID 1437467876-22106-24-git-send-email-yangds.fnst@cn.fujitsu.com (mailing list archive)
State New, archived
Headers show

Commit Message

Yang Dongsheng July 21, 2015, 8:37 a.m. UTC 
When we change the owner or group of a file, we need to transfer
the quota information at the same time.

Signed-off-by: Dongsheng Yang <yangds.fnst@cn.fujitsu.com>
---
 fs/ubifs/file.c | 9 +++++++++
 1 file changed, 9 insertions(+)
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Patch

diff --git a/fs/ubifs/file.c b/fs/ubifs/file.c
index aac10bd..e9844ef 100644
--- a/fs/ubifs/file.c
+++ b/fs/ubifs/file.c
@@ -1304,6 +1304,15 @@  int ubifs_setattr(struct dentry *dentry, struct iattr *attr)
 	if (err)
 		return err;
 
+	if (is_quota_modification(inode, attr))
+		dquot_initialize(inode);
+	if ((attr->ia_valid & ATTR_UID && !uid_eq(attr->ia_uid, inode->i_uid)) ||
+	    (attr->ia_valid & ATTR_GID && !gid_eq(attr->ia_gid, inode->i_gid))) {
+		err = dquot_transfer(inode, attr);
+		if (err)
+			return err;
+	}
+
 	if ((attr->ia_valid & ATTR_SIZE) && attr->ia_size < inode->i_size)
 		/* Truncation to a smaller size */
 		err = do_truncation(c, inode, attr);