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f516676857
A number of ext4 source files were skipped due because their copyright permission statements didn't match the expected text used by the automated conversion utilities. I've added SPDX tags for the rest. While looking at some of these files, I've noticed that we have quite a bit of variation on the licenses that were used --- in particular some of the Red Hat licenses on the jbd2 files use a GPL2+ license, and we have some files that have a LGPL-2.1 license (which was quite surprising). I've not attempted to do any license changes. Even if it is perfectly legal to relicense to GPL 2.0-only for consistency's sake, that should be done with ext4 developer community discussion. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
74 lines
1.5 KiB
C
74 lines
1.5 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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File: fs/ext4/acl.h
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(C) 2001 Andreas Gruenbacher, <a.gruenbacher@computer.org>
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*/
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#include <linux/posix_acl_xattr.h>
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#define EXT4_ACL_VERSION 0x0001
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typedef struct {
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__le16 e_tag;
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__le16 e_perm;
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__le32 e_id;
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} ext4_acl_entry;
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typedef struct {
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__le16 e_tag;
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__le16 e_perm;
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} ext4_acl_entry_short;
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typedef struct {
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__le32 a_version;
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} ext4_acl_header;
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static inline size_t ext4_acl_size(int count)
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{
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if (count <= 4) {
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return sizeof(ext4_acl_header) +
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count * sizeof(ext4_acl_entry_short);
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} else {
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return sizeof(ext4_acl_header) +
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4 * sizeof(ext4_acl_entry_short) +
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(count - 4) * sizeof(ext4_acl_entry);
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}
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}
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static inline int ext4_acl_count(size_t size)
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{
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ssize_t s;
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size -= sizeof(ext4_acl_header);
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s = size - 4 * sizeof(ext4_acl_entry_short);
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if (s < 0) {
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if (size % sizeof(ext4_acl_entry_short))
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return -1;
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return size / sizeof(ext4_acl_entry_short);
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} else {
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if (s % sizeof(ext4_acl_entry))
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return -1;
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return s / sizeof(ext4_acl_entry) + 4;
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}
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}
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#ifdef CONFIG_EXT4_FS_POSIX_ACL
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/* acl.c */
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struct posix_acl *ext4_get_acl(struct inode *inode, int type);
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int ext4_set_acl(struct inode *inode, struct posix_acl *acl, int type);
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extern int ext4_init_acl(handle_t *, struct inode *, struct inode *);
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#else /* CONFIG_EXT4_FS_POSIX_ACL */
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#include <linux/sched.h>
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#define ext4_get_acl NULL
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#define ext4_set_acl NULL
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static inline int
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ext4_init_acl(handle_t *handle, struct inode *inode, struct inode *dir)
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{
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return 0;
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}
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#endif /* CONFIG_EXT4_FS_POSIX_ACL */
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