From b7a2921765cf796280baf653a52b22b52e0ba266 Mon Sep 17 00:00:00 2001 From: Luis Henriques Date: Fri, 5 Jan 2018 10:47:19 +0000 Subject: ceph: quota: support for ceph.quota.max_files This patch adds support for the max_files quota. It hooks into all the ceph functions that add new filesystem objects that need to be checked against the quota limits. When these limits are hit, -EDQUOT is returned. Note that we're not checking quotas on ceph_link(). ceph_link doesn't really create a new inode, and since the MDS doesn't update the directory statistics when a new (hard) link is created (only with symlinks), they are not accounted as a new file. Signed-off-by: Luis Henriques Reviewed-by: "Yan, Zheng" Signed-off-by: Ilya Dryomov --- fs/ceph/file.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'fs/ceph/file.c') diff --git a/fs/ceph/file.c b/fs/ceph/file.c index 4a92acba1e9c..c3042330e0e9 100644 --- a/fs/ceph/file.c +++ b/fs/ceph/file.c @@ -402,7 +402,7 @@ int ceph_atomic_open(struct inode *dir, struct dentry *dentry, struct ceph_mds_request *req; struct dentry *dn; struct ceph_acls_info acls = {}; - int mask; + int mask; int err; dout("atomic_open %p dentry %p '%pd' %s flags %d mode 0%o\n", @@ -413,6 +413,8 @@ int ceph_atomic_open(struct inode *dir, struct dentry *dentry, return -ENAMETOOLONG; if (flags & O_CREAT) { + if (ceph_quota_is_max_files_exceeded(dir)) + return -EDQUOT; err = ceph_pre_init_acls(dir, &mode, &acls); if (err < 0) return err; -- cgit v1.2.3