1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. 4 * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved. 5 */ 6 7 #ifndef __SUPER_DOT_H__ 8 #define __SUPER_DOT_H__ 9 10 #include <linux/fs.h> 11 #include <linux/dcache.h> 12 #include "incore.h" 13 14 /* Supported fs format version range */ 15 #define GFS2_FS_FORMAT_MIN (1801) 16 #define GFS2_FS_FORMAT_MAX (1802) 17 18 extern void gfs2_lm_unmount(struct gfs2_sbd *sdp); 19 20 static inline unsigned int gfs2_jindex_size(struct gfs2_sbd *sdp) 21 { 22 unsigned int x; 23 spin_lock(&sdp->sd_jindex_spin); 24 x = sdp->sd_journals; 25 spin_unlock(&sdp->sd_jindex_spin); 26 return x; 27 } 28 29 extern void gfs2_jindex_free(struct gfs2_sbd *sdp); 30 31 extern struct gfs2_jdesc *gfs2_jdesc_find(struct gfs2_sbd *sdp, unsigned int jid); 32 extern int gfs2_jdesc_check(struct gfs2_jdesc *jd); 33 extern int gfs2_lookup_in_master_dir(struct gfs2_sbd *sdp, char *filename, 34 struct gfs2_inode **ipp); 35 36 extern int gfs2_make_fs_rw(struct gfs2_sbd *sdp); 37 extern void gfs2_make_fs_ro(struct gfs2_sbd *sdp); 38 extern void gfs2_online_uevent(struct gfs2_sbd *sdp); 39 extern void gfs2_destroy_threads(struct gfs2_sbd *sdp); 40 extern int gfs2_statfs_init(struct gfs2_sbd *sdp); 41 extern void gfs2_statfs_change(struct gfs2_sbd *sdp, s64 total, s64 free, 42 s64 dinodes); 43 extern void gfs2_statfs_change_in(struct gfs2_statfs_change_host *sc, 44 const void *buf); 45 extern void gfs2_statfs_change_out(const struct gfs2_statfs_change_host *sc, 46 void *buf); 47 extern void update_statfs(struct gfs2_sbd *sdp, struct buffer_head *m_bh); 48 extern int gfs2_statfs_sync(struct super_block *sb, int type); 49 extern void gfs2_freeze_func(struct work_struct *work); 50 extern void gfs2_thaw_freeze_initiator(struct super_block *sb); 51 52 extern void free_local_statfs_inodes(struct gfs2_sbd *sdp); 53 extern struct inode *find_local_statfs_inode(struct gfs2_sbd *sdp, 54 unsigned int index); 55 extern void free_sbd(struct gfs2_sbd *sdp); 56 57 extern struct file_system_type gfs2_fs_type; 58 extern struct file_system_type gfs2meta_fs_type; 59 extern const struct export_operations gfs2_export_ops; 60 extern const struct super_operations gfs2_super_ops; 61 extern const struct dentry_operations gfs2_dops; 62 63 extern const struct xattr_handler *gfs2_xattr_handlers_max[]; 64 extern const struct xattr_handler **gfs2_xattr_handlers_min; 65 66 #endif /* __SUPER_DOT_H__ */ 67 68