Git Repo - linux.git/blame_incremental

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Commit	Line	Data
	1	/* SPDX-License-Identifier: GPL-2.0 */
	2	#include <linux/init.h>
	3	#include <linux/posix_acl.h>
	4
	5	#define REISERFS_ACL_VERSION 0x0001
	6
	7	typedef struct {
	8	__le16 e_tag;
	9	__le16 e_perm;
	10	__le32 e_id;
	11	} reiserfs_acl_entry;
	12
	13	typedef struct {
	14	__le16 e_tag;
	15	__le16 e_perm;
	16	} reiserfs_acl_entry_short;
	17
	18	typedef struct {
	19	__le32 a_version;
	20	} reiserfs_acl_header;
	21
	22	static inline size_t reiserfs_acl_size(int count)
	23	{
	24	if (count <= 4) {
	25	return sizeof(reiserfs_acl_header) +
	26	count * sizeof(reiserfs_acl_entry_short);
	27	} else {
	28	return sizeof(reiserfs_acl_header) +
	29	4 * sizeof(reiserfs_acl_entry_short) +
	30	(count - 4) * sizeof(reiserfs_acl_entry);
	31	}
	32	}
	33
	34	static inline int reiserfs_acl_count(size_t size)
	35	{
	36	ssize_t s;
	37	size -= sizeof(reiserfs_acl_header);
	38	s = size - 4 * sizeof(reiserfs_acl_entry_short);
	39	if (s < 0) {
	40	if (size % sizeof(reiserfs_acl_entry_short))
	41	return -1;
	42	return size / sizeof(reiserfs_acl_entry_short);
	43	} else {
	44	if (s % sizeof(reiserfs_acl_entry))
	45	return -1;
	46	return s / sizeof(reiserfs_acl_entry) + 4;
	47	}
	48	}
	49
	50	#ifdef CONFIG_REISERFS_FS_POSIX_ACL
	51	struct posix_acl reiserfs_get_acl(struct inode inode, int type);
	52	int reiserfs_set_acl(struct inode inode, struct posix_acl acl, int type);
	53	int reiserfs_acl_chmod(struct inode *inode);
	54	int reiserfs_inherit_default_acl(struct reiserfs_transaction_handle *th,
	55	struct inode dir, struct dentry dentry,
	56	struct inode *inode);
	57	int reiserfs_cache_default_acl(struct inode *dir);
	58
	59	#else
	60
	61	#define reiserfs_cache_default_acl(inode) 0
	62	#define reiserfs_get_acl NULL
	63	#define reiserfs_set_acl NULL
	64
	65	static inline int reiserfs_acl_chmod(struct inode *inode)
	66	{
	67	return 0;
	68	}
	69
	70	static inline int
	71	reiserfs_inherit_default_acl(struct reiserfs_transaction_handle *th,
	72	const struct inode dir, struct dentry dentry,
	73	struct inode *inode)
	74	{
	75	return 0;
	76	}
	77	#endif