add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/fs/ecryptfs/mmap.c
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@@ -1,3 +1,4 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /**
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  * eCryptfs: Linux filesystem encryption layer
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  * This is where eCryptfs coordinates the symmetric encryption and
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@@ -8,21 +9,6 @@
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  * Copyright (C) 2001-2003 Stony Brook University
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  * Copyright (C) 2004-2007 International Business Machines Corp.
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  *   Author(s): Michael A. Halcrow <mahalcro@us.ibm.com>
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- *
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- * This program is free software; you can redistribute it and/or
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- * modify it under the terms of the GNU General Public License as
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- * published by the Free Software Foundation; either version 2 of the
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- * License, or (at your option) any later version.
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- *
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- * This program is distributed in the hope that it will be useful, but
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- * WITHOUT ANY WARRANTY; without even the implied warranty of
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- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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- * General Public License for more details.
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- *
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- * You should have received a copy of the GNU General Public License
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- * along with this program; if not, write to the Free Software
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- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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- * 02111-1307, USA.
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  */
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 #include <linux/pagemap.h>
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@@ -436,7 +422,7 @@
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 	}
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 	inode_lock(lower_inode);
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 	size = __vfs_getxattr(lower_dentry, lower_inode, ECRYPTFS_XATTR_NAME,
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-			      xattr_virt, PAGE_SIZE);
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+			      xattr_virt, PAGE_SIZE, XATTR_NOSECURITY);
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 	if (size < 0)
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 		size = 8;
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 	put_unaligned_be64(i_size_read(ecryptfs_inode), xattr_virt);
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@@ -538,16 +524,12 @@
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 static sector_t ecryptfs_bmap(struct address_space *mapping, sector_t block)
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 {
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-	int rc = 0;
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-	struct inode *inode;
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-	struct inode *lower_inode;
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+	struct inode *lower_inode = ecryptfs_inode_to_lower(mapping->host);
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+	int ret = bmap(lower_inode, &block);
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-	inode = (struct inode *)mapping->host;
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-	lower_inode = ecryptfs_inode_to_lower(inode);
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-	if (lower_inode->i_mapping->a_ops->bmap)
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-		rc = lower_inode->i_mapping->a_ops->bmap(lower_inode->i_mapping,
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-							 block);
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-	return rc;
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+	if (ret)
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+		return 0;
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+	return block;
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 }
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 const struct address_space_operations ecryptfs_aops = {