Release 4.18 fs/reiserfs/acl.h

/* SPDX-License-Identifier: GPL-2.0 */
#include <linux/init.h>
#include <linux/posix_acl.h>


#define REISERFS_ACL_VERSION	0x0001


typedef struct {
	
__le16 e_tag;
	
__le16 e_perm;
	
__le32 e_id;

} reiserfs_acl_entry;


typedef struct {
	
__le16 e_tag;
	
__le16 e_perm;

} reiserfs_acl_entry_short;


typedef struct {
	
__le32 a_version;

} reiserfs_acl_header;



static inline size_t reiserfs_acl_size(int count)
{
	if (count <= 4) {
		return sizeof(reiserfs_acl_header) +
		    count * sizeof(reiserfs_acl_entry_short);
	} else {
		return sizeof(reiserfs_acl_header) +
		    4 * sizeof(reiserfs_acl_entry_short) +
		    (count - 4) * sizeof(reiserfs_acl_entry);
	}
}

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static inline int reiserfs_acl_count(size_t size)
{
	ssize_t s;
	size -= sizeof(reiserfs_acl_header);
	s = size - 4 * sizeof(reiserfs_acl_entry_short);
	if (s < 0) {
		if (size % sizeof(reiserfs_acl_entry_short))
			return -1;
		return size / sizeof(reiserfs_acl_entry_short);
	} else {
		if (s % sizeof(reiserfs_acl_entry))
			return -1;
		return s / sizeof(reiserfs_acl_entry) + 4;
	}
}

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#ifdef CONFIG_REISERFS_FS_POSIX_ACL
struct posix_acl *reiserfs_get_acl(struct inode *inode, int type);
int reiserfs_set_acl(struct inode *inode, struct posix_acl *acl, int type);
int reiserfs_acl_chmod(struct inode *inode);
int reiserfs_inherit_default_acl(struct reiserfs_transaction_handle *th,
				 struct inode *dir, struct dentry *dentry,
				 struct inode *inode);
int reiserfs_cache_default_acl(struct inode *dir);

#else


#define reiserfs_cache_default_acl(inode) 0

#define reiserfs_get_acl NULL

#define reiserfs_set_acl NULL



static inline int reiserfs_acl_chmod(struct inode *inode)
{
	return 0;
}

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static inline int

reiserfs_inherit_default_acl(struct reiserfs_transaction_handle *th,
			     const struct inode *dir, struct dentry *dentry,
			     struct inode *inode)
{
	return 0;
}
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#endif
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Jeff Mahoney
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Alexander Beregalov
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Greg Kroah-Hartman
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Linus Torvalds
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Directory: fs/reiserfs

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