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Linux/fs/gfs2/super.h

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  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 int gfs2_statfs_init(struct gfs2_sbd *sdp);
 40 extern void gfs2_statfs_change(struct gfs2_sbd *sdp, s64 total, s64 free,
 41                                s64 dinodes);
 42 extern void gfs2_statfs_change_in(struct gfs2_statfs_change_host *sc,
 43                                   const void *buf);
 44 extern void gfs2_statfs_change_out(const struct gfs2_statfs_change_host *sc,
 45                                    void *buf);
 46 extern void update_statfs(struct gfs2_sbd *sdp, struct buffer_head *m_bh,
 47                           struct buffer_head *l_bh);
 48 extern int gfs2_statfs_sync(struct super_block *sb, int type);
 49 extern void gfs2_freeze_func(struct work_struct *work);
 50 
 51 extern void free_local_statfs_inodes(struct gfs2_sbd *sdp);
 52 extern struct inode *find_local_statfs_inode(struct gfs2_sbd *sdp,
 53                                              unsigned int index);
 54 extern void free_sbd(struct gfs2_sbd *sdp);
 55 
 56 extern struct file_system_type gfs2_fs_type;
 57 extern struct file_system_type gfs2meta_fs_type;
 58 extern const struct export_operations gfs2_export_ops;
 59 extern const struct super_operations gfs2_super_ops;
 60 extern const struct dentry_operations gfs2_dops;
 61 
 62 extern const struct xattr_handler *gfs2_xattr_handlers_max[];
 63 extern const struct xattr_handler **gfs2_xattr_handlers_min;
 64 
 65 #endif /* __SUPER_DOT_H__ */
 66 
 67 

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