60a16564a1
Add the extent status tree implementation to the ext4l build. This module tracks extent status in memory to support delayed allocation and SEEK_DATA/SEEK_HOLE operations. Changes: - Add extents_status.o to Makefile - Add include guard to acl.h - Add shrinker, ktime, and ratelimit stubs to ext4_uboot.h - Guard iomap definitions in ext4_uboot.h when iomap.h is included - Guard dquot macros when quotaops.h is included - Remove stub functions now provided by extents_status.c - Add ext4_da_release_space/update_reserve_space stubs Series-to: u-boot Cover-letter: ext4l: Adjust some of the smaller files (part C) This series makes various changes to allow some of the ext4l files to compile successfully. It provides a basic Kconfig to allow selecting ext4l (ext4 from Linu) instead of the existing ext4 implementation. To reduce the large number of include/linux files somewhat and to avoid exceesive diffs against the Linux files, a new ext4_uboot.h header is created. This will expand over time. END Co-developed-by: Claude Opus 4.5 <noreply@anthropic.com> Signed-off-by: Simon Glass <simon.glass@canonical.com>
79 lines
1.7 KiB
C
79 lines
1.7 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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#ifndef _FS_EXT4_ACL_H
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#define _FS_EXT4_ACL_H
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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, bool rcu);
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int ext4_set_acl(struct mnt_idmap *idmap, struct dentry *dentry,
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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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#endif /* _FS_EXT4_ACL_H */
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