ceph: provide seperate {inode,file}_operations for snapdir

remove all unsupported operations from {inode,file}_operations.

Signed-off-by: Yan, Zheng <zyan@redhat.com>

3 files changed, 19 insertions, 4 deletions

diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c
index c241603764fd..709f3b98ca5c 100644
--- a/fs/ceph/dir.c
+++ b/fs/ceph/dir.c
@@ -26,8 +26,6 @@
  * point by name.
  */
 
-const struct inode_operations ceph_dir_iops;
-const struct file_operations ceph_dir_fops;
 const struct dentry_operations ceph_dentry_ops;
 
 /*
@@ -1335,6 +1333,13 @@ const struct file_operations ceph_dir_fops = {
         .fsync = ceph_dir_fsync,
 };
 
+const struct file_operations ceph_snapdir_fops = {
+        .iterate = ceph_readdir,
+        .llseek = ceph_dir_llseek,
+        .open = ceph_open,
+        .release = ceph_release,
+};
+
 const struct inode_operations ceph_dir_iops = {
         .lookup = ceph_lookup,
         .permission = ceph_permission,
@@ -1357,6 +1362,14 @@ const struct inode_operations ceph_dir_iops = {
         .atomic_open = ceph_atomic_open,
 };
 
+const struct inode_operations ceph_snapdir_iops = {
+        .lookup = ceph_lookup,
+        .permission = ceph_permission,
+        .getattr = ceph_getattr,
+        .mkdir = ceph_mkdir,
+        .rmdir = ceph_unlink,
+};
+
 const struct dentry_operations ceph_dentry_ops = {
         .d_revalidate = ceph_d_revalidate,
         .d_release = ceph_d_release,
diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c
index f61a74115beb..d0fe2f437fbb 100644
--- a/fs/ceph/inode.c
+++ b/fs/ceph/inode.c
@@ -82,8 +82,8 @@ struct inode *ceph_get_snapdir(struct inode *parent)
         inode->i_mode = parent->i_mode;
         inode->i_uid = parent->i_uid;
         inode->i_gid = parent->i_gid;
-        inode->i_op = &ceph_dir_iops;
-        inode->i_fop = &ceph_dir_fops;
+        inode->i_op = &ceph_snapdir_iops;
+        inode->i_fop = &ceph_snapdir_fops;
         ci->i_snap_caps = CEPH_CAP_PIN; /* so we can open */
         ci->i_rbytes = 0;
         return inode;
diff --git a/fs/ceph/super.h b/fs/ceph/super.h
index 72bc05a73b69..04c8124ed30e 100644
--- a/fs/ceph/super.h
+++ b/fs/ceph/super.h
@@ -893,7 +893,9 @@ extern void ceph_fill_inline_data(struct inode *inode, struct page *locked_page,
 int ceph_uninline_data(struct file *filp, struct page *locked_page);
 /* dir.c */
 extern const struct file_operations ceph_dir_fops;
+extern const struct file_operations ceph_snapdir_fops;
 extern const struct inode_operations ceph_dir_iops;
+extern const struct inode_operations ceph_snapdir_iops;
 extern const struct dentry_operations ceph_dentry_ops, ceph_snap_dentry_ops,
         ceph_snapdir_dentry_ops;