Revert "ceph: use ceph_evict_inode to cleanup inode's resource"

This reverts commit 81281039.

The backport was incorrect and was causing kernel panics. Revert and
re-apply a correct backport from Jeff Layton.
Signed-off-by: NSasha Levin <sashal@kernel.org>

fs/ceph/inode.c

@@ -528,16 +528,13 @@ static void ceph_i_callback(struct rcu_head *head)
 	kmem_cache_free(ceph_inode_cachep, ci);
 }
 
-void ceph_evict_inode(struct inode *inode)
+void ceph_destroy_inode(struct inode *inode)
 {
 	struct ceph_inode_info *ci = ceph_inode(inode);
 	struct ceph_inode_frag *frag;
 	struct rb_node *n;
 
-	dout("evict_inode %p ino %llx.%llx\n", inode, ceph_vinop(inode));
-
-	truncate_inode_pages_final(&inode->i_data);
-	clear_inode(inode);
+	dout("destroy_inode %p ino %llx.%llx\n", inode, ceph_vinop(inode));
 
 	ceph_fscache_unregister_inode_cookie(ci);
 

fs/ceph/super.c

@@ -827,9 +827,9 @@ static int ceph_remount(struct super_block *sb, int *flags, char *data)
 
 static const struct super_operations ceph_super_ops = {
 	.alloc_inode	= ceph_alloc_inode,
+	.destroy_inode	= ceph_destroy_inode,
 	.write_inode    = ceph_write_inode,
 	.drop_inode	= ceph_drop_inode,
-	.evict_inode	= ceph_evict_inode,
 	.sync_fs        = ceph_sync_fs,
 	.put_super	= ceph_put_super,
 	.remount_fs	= ceph_remount,

fs/ceph/super.h

@@ -854,7 +854,7 @@ static inline bool __ceph_have_pending_cap_snap(struct ceph_inode_info *ci)
 extern const struct inode_operations ceph_file_iops;
 
 extern struct inode *ceph_alloc_inode(struct super_block *sb);
-extern void ceph_evict_inode(struct inode *inode);
+extern void ceph_destroy_inode(struct inode *inode);
 extern int ceph_drop_inode(struct inode *inode);
 
 extern struct inode *ceph_get_inode(struct super_block *sb,