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 <lhenriques@suse.com>
Reviewed-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
diff --git a/fs/ceph/super.h b/fs/ceph/super.h
index 0c95a92..4afc6cc 100644
--- a/fs/ceph/super.h
+++ b/fs/ceph/super.h
@@ -1077,5 +1077,6 @@ extern void ceph_fs_debugfs_cleanup(struct ceph_fs_client *client);
extern void ceph_handle_quota(struct ceph_mds_client *mdsc,
struct ceph_mds_session *session,
struct ceph_msg *msg);
+extern bool ceph_quota_is_max_files_exceeded(struct inode *inode);
#endif /* _FS_CEPH_SUPER_H */