mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-12 13:55:32 +00:00
866eef48d8
Add support for an additional filesystem version (sb_fs_format = 1802). When a filesystem with the new version is mounted, the filesystem supports "trusted.*" xattrs. In addition, version 1802 filesystems implement a form of forward compatibility for xattrs: when xattrs with an unknown prefix (ea_type) are found on a version 1802 filesystem, those attributes are not shown by listxattr, and they are not accessible by getxattr, setxattr, or removexattr. This mechanism might turn out to be what we need in the future, but if not, we can always bump the filesystem version and break compatibility instead. Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com> Signed-off-by: Andrew Price <anprice@redhat.com>
66 lines
2.2 KiB
C
66 lines
2.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
/*
|
|
* Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
|
|
* Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
|
|
*/
|
|
|
|
#ifndef __SUPER_DOT_H__
|
|
#define __SUPER_DOT_H__
|
|
|
|
#include <linux/fs.h>
|
|
#include <linux/dcache.h>
|
|
#include "incore.h"
|
|
|
|
/* Supported fs format version range */
|
|
#define GFS2_FS_FORMAT_MIN (1801)
|
|
#define GFS2_FS_FORMAT_MAX (1802)
|
|
|
|
extern void gfs2_lm_unmount(struct gfs2_sbd *sdp);
|
|
|
|
static inline unsigned int gfs2_jindex_size(struct gfs2_sbd *sdp)
|
|
{
|
|
unsigned int x;
|
|
spin_lock(&sdp->sd_jindex_spin);
|
|
x = sdp->sd_journals;
|
|
spin_unlock(&sdp->sd_jindex_spin);
|
|
return x;
|
|
}
|
|
|
|
extern void gfs2_jindex_free(struct gfs2_sbd *sdp);
|
|
|
|
extern struct gfs2_jdesc *gfs2_jdesc_find(struct gfs2_sbd *sdp, unsigned int jid);
|
|
extern int gfs2_jdesc_check(struct gfs2_jdesc *jd);
|
|
extern int gfs2_lookup_in_master_dir(struct gfs2_sbd *sdp, char *filename,
|
|
struct gfs2_inode **ipp);
|
|
|
|
extern int gfs2_make_fs_rw(struct gfs2_sbd *sdp);
|
|
extern int gfs2_make_fs_ro(struct gfs2_sbd *sdp);
|
|
extern void gfs2_online_uevent(struct gfs2_sbd *sdp);
|
|
extern int gfs2_statfs_init(struct gfs2_sbd *sdp);
|
|
extern void gfs2_statfs_change(struct gfs2_sbd *sdp, s64 total, s64 free,
|
|
s64 dinodes);
|
|
extern void gfs2_statfs_change_in(struct gfs2_statfs_change_host *sc,
|
|
const void *buf);
|
|
extern void gfs2_statfs_change_out(const struct gfs2_statfs_change_host *sc,
|
|
void *buf);
|
|
extern void update_statfs(struct gfs2_sbd *sdp, struct buffer_head *m_bh,
|
|
struct buffer_head *l_bh);
|
|
extern int gfs2_statfs_sync(struct super_block *sb, int type);
|
|
extern void gfs2_freeze_func(struct work_struct *work);
|
|
|
|
extern void free_local_statfs_inodes(struct gfs2_sbd *sdp);
|
|
extern struct inode *find_local_statfs_inode(struct gfs2_sbd *sdp,
|
|
unsigned int index);
|
|
extern void free_sbd(struct gfs2_sbd *sdp);
|
|
|
|
extern struct file_system_type gfs2_fs_type;
|
|
extern struct file_system_type gfs2meta_fs_type;
|
|
extern const struct export_operations gfs2_export_ops;
|
|
extern const struct super_operations gfs2_super_ops;
|
|
extern const struct dentry_operations gfs2_dops;
|
|
|
|
extern const struct xattr_handler *gfs2_xattr_handlers_max[];
|
|
extern const struct xattr_handler **gfs2_xattr_handlers_min;
|
|
|
|
#endif /* __SUPER_DOT_H__ */
|
|
|