linux-kernel - [RFC v2 60/83] Add special inode operations.

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Date:   Sat, 10 Mar 2018 10:18:41 -0800
From:   Andiry Xu <jix024@....ucsd.edu>
To:     linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-nvdimm@...ts.01.org
Cc:     dan.j.williams@...el.com, andy.rudoff@...el.com,
        coughlan@...hat.com, swanson@...ucsd.edu, david@...morbit.com,
        jack@...e.com, swhiteho@...hat.com, miklos@...redi.hu,
        andiry.xu@...il.com, Andiry Xu <jix024@...ucsd.edu>
Subject: [RFC v2 60/83] Add special inode operations.

From: Andiry Xu <jix024@...ucsd.edu>

Signed-off-by: Andiry Xu <jix024@...ucsd.edu>
---
 fs/nova/inode.c | 2 ++
 fs/nova/namei.c | 5 +++++
 fs/nova/nova.h  | 1 +
 3 files changed, 8 insertions(+)

diff --git a/fs/nova/inode.c b/fs/nova/inode.c
index 2092a55..0e9ab4b 100644
--- a/fs/nova/inode.c
+++ b/fs/nova/inode.c
@@ -239,6 +239,7 @@ static int nova_read_inode(struct super_block *sb, struct inode *inode,
 	case S_IFLNK:
 		break;
 	default:
+		inode->i_op = &nova_special_inode_operations;
 		init_special_inode(inode, inode->i_mode,
 				   le32_to_cpu(pi->dev.rdev));
 		break;
@@ -929,6 +930,7 @@ struct inode *nova_new_vfs_inode(enum nova_new_inode_type type,
 		break;
 	case TYPE_MKNOD:
 		init_special_inode(inode, mode, rdev);
+		inode->i_op = &nova_special_inode_operations;
 		break;
 	case TYPE_SYMLINK:
 		inode->i_mapping->a_ops = &nova_aops_dax;
diff --git a/fs/nova/namei.c b/fs/nova/namei.c
index 1966bff..7a81672 100644
--- a/fs/nova/namei.c
+++ b/fs/nova/namei.c
@@ -771,3 +771,8 @@ const struct inode_operations nova_dir_inode_operations = {
 	.setattr	= nova_notify_change,
 	.get_acl	= NULL,
 };
+
+const struct inode_operations nova_special_inode_operations = {
+	.setattr	= nova_notify_change,
+	.get_acl	= NULL,
+};
diff --git a/fs/nova/nova.h b/fs/nova/nova.h
index 03ea0bd..85292d3 100644
--- a/fs/nova/nova.h
+++ b/fs/nova/nova.h
@@ -486,6 +486,7 @@ int nova_remove_dentry(struct dentry *dentry, int dec_link,
 
 /* namei.c */
 extern const struct inode_operations nova_dir_inode_operations;
+extern const struct inode_operations nova_special_inode_operations;
 extern struct dentry *nova_get_parent(struct dentry *child);
 
 /* rebuild.c */
-- 
2.7.4