From 2b83845f8bd711e66e1c367a9bd56c9df3410236 Mon Sep 17 00:00:00 2001
From: Luis Henriques <lhenriques@suse.com>
Date: Fri, 5 Jan 2018 10:47:21 +0000
Subject: ceph: quota: support for ceph.quota.max_bytes

Signed-off-by: Luis Henriques <lhenriques@suse.com>
Reviewed-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
---
 fs/ceph/inode.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'fs/ceph/inode.c')

diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c
index 2c6f8be4ed63..50ccae151ea0 100644
--- a/fs/ceph/inode.c
+++ b/fs/ceph/inode.c
@@ -2147,6 +2147,10 @@ int ceph_setattr(struct dentry *dentry, struct iattr *attr)
 	if (err != 0)
 		return err;
 
+	if ((attr->ia_valid & ATTR_SIZE) &&
+	    ceph_quota_is_max_bytes_exceeded(inode, attr->ia_size))
+		return -EDQUOT;
+
 	err = __ceph_setattr(inode, attr);
 
 	if (err >= 0 && (attr->ia_valid & ATTR_MODE))
-- 
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