From feda821e76f3bbbba4bd54d30b4d4005a7848aa5 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@infradead.org>
Date: Fri, 20 Dec 2013 05:16:54 -0800
Subject: fs: remove generic_acl

And instead convert tmpfs to use the new generic ACL code, with two stub
methods provided for in-memory filesystems.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 mm/shmem.c | 57 +++++++++++++++++++++++----------------------------------
 1 file changed, 23 insertions(+), 34 deletions(-)

(limited to 'mm')

diff --git a/mm/shmem.c b/mm/shmem.c
index 902a14842b7..b21ca543458 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -45,7 +45,7 @@ static struct vfsmount *shm_mnt;
 #include <linux/xattr.h>
 #include <linux/exportfs.h>
 #include <linux/posix_acl.h>
-#include <linux/generic_acl.h>
+#include <linux/posix_acl_xattr.h>
 #include <linux/mman.h>
 #include <linux/string.h>
 #include <linux/slab.h>
@@ -620,10 +620,8 @@ static int shmem_setattr(struct dentry *dentry, struct iattr *attr)
 	}
 
 	setattr_copy(inode, attr);
-#ifdef CONFIG_TMPFS_POSIX_ACL
 	if (attr->ia_valid & ATTR_MODE)
-		error = generic_acl_chmod(inode);
-#endif
+		error = posix_acl_chmod(inode, inode->i_mode);
 	return error;
 }
 
@@ -1937,22 +1935,14 @@ shmem_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev)
 
 	inode = shmem_get_inode(dir->i_sb, dir, mode, dev, VM_NORESERVE);
 	if (inode) {
-#ifdef CONFIG_TMPFS_POSIX_ACL
-		error = generic_acl_init(inode, dir);
-		if (error) {
-			iput(inode);
-			return error;
-		}
-#endif
+		error = simple_acl_create(dir, inode);
+		if (error)
+			goto out_iput;
 		error = security_inode_init_security(inode, dir,
 						     &dentry->d_name,
 						     shmem_initxattrs, NULL);
-		if (error) {
-			if (error != -EOPNOTSUPP) {
-				iput(inode);
-				return error;
-			}
-		}
+		if (error && error != -EOPNOTSUPP)
+			goto out_iput;
 
 		error = 0;
 		dir->i_size += BOGO_DIRENT_SIZE;
@@ -1961,6 +1951,9 @@ shmem_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev)
 		dget(dentry); /* Extra count - pin the dentry in core */
 	}
 	return error;
+out_iput:
+	iput(inode);
+	return error;
 }
 
 static int
@@ -1974,24 +1967,17 @@ shmem_tmpfile(struct inode *dir, struct dentry *dentry, umode_t mode)
 		error = security_inode_init_security(inode, dir,
 						     NULL,
 						     shmem_initxattrs, NULL);
-		if (error) {
-			if (error != -EOPNOTSUPP) {
-				iput(inode);
-				return error;
-			}
-		}
-#ifdef CONFIG_TMPFS_POSIX_ACL
-		error = generic_acl_init(inode, dir);
-		if (error) {
-			iput(inode);
-			return error;
-		}
-#else
-		error = 0;
-#endif
+		if (error && error != -EOPNOTSUPP)
+			goto out_iput;
+		error = simple_acl_create(dir, inode);
+		if (error)
+			goto out_iput;
 		d_tmpfile(dentry, inode);
 	}
 	return error;
+out_iput:
+	iput(inode);
+	return error;
 }
 
 static int shmem_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
@@ -2223,8 +2209,8 @@ static int shmem_initxattrs(struct inode *inode,
 
 static const struct xattr_handler *shmem_xattr_handlers[] = {
 #ifdef CONFIG_TMPFS_POSIX_ACL
-	&generic_acl_access_handler,
-	&generic_acl_default_handler,
+	&posix_acl_access_xattr_handler,
+	&posix_acl_default_xattr_handler,
 #endif
 	NULL
 };
@@ -2740,6 +2726,7 @@ static const struct inode_operations shmem_inode_operations = {
 	.getxattr	= shmem_getxattr,
 	.listxattr	= shmem_listxattr,
 	.removexattr	= shmem_removexattr,
+	.set_acl	= simple_set_acl,
 #endif
 };
 
@@ -2764,6 +2751,7 @@ static const struct inode_operations shmem_dir_inode_operations = {
 #endif
 #ifdef CONFIG_TMPFS_POSIX_ACL
 	.setattr	= shmem_setattr,
+	.set_acl	= simple_set_acl,
 #endif
 };
 
@@ -2776,6 +2764,7 @@ static const struct inode_operations shmem_special_inode_operations = {
 #endif
 #ifdef CONFIG_TMPFS_POSIX_ACL
 	.setattr	= shmem_setattr,
+	.set_acl	= simple_set_acl,
 #endif
 };
 
-- 
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