fs/gfs2/inode.h

   1 /*
   2  * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
   3  * Copyright (C) 2004-2006 Red Hat, Inc.  All rights reserved.
   4  *
   5  * This copyrighted material is made available to anyone wishing to use,
   6  * modify, copy, or redistribute it subject to the terms and conditions
   7  * of the GNU General Public License version 2.
   8  */
   9
  10 #ifndef __INODE_DOT_H__
  11 #define __INODE_DOT_H__
  12
  13 static inline int gfs2_is_stuffed(const struct gfs2_inode *ip)
  14 {
  15         return !ip->i_di.di_height;
  16 }
  17
  18 static inline int gfs2_is_jdata(const struct gfs2_inode *ip)
  19 {
  20         return ip->i_di.di_flags & GFS2_DIF_JDATA;
  21 }
  22
  23 static inline int gfs2_is_dir(const struct gfs2_inode *ip)
  24 {
  25         return S_ISDIR(ip->i_inode.i_mode);
  26 }
  27
  28 static inline void gfs2_set_inode_blocks(struct inode *inode)
  29 {
  30         struct gfs2_inode *ip = GFS2_I(inode);
  31         inode->i_blocks = ip->i_di.di_blocks <<
  32                 (GFS2_SB(inode)->sd_sb.sb_bsize_shift - GFS2_BASIC_BLOCK_SHIFT);
  33 }
  34
  35 static inline int gfs2_check_inum(const struct gfs2_inode *ip, u64 no_addr,
  36                                   u64 no_formal_ino)
  37 {
  38         return ip->i_no_addr == no_addr && ip->i_no_formal_ino == no_formal_ino;
  39 }
  40
  41 static inline void gfs2_inum_out(const struct gfs2_inode *ip,
  42                                  struct gfs2_dirent *dent)
  43 {
  44         dent->de_inum.no_formal_ino = cpu_to_be64(ip->i_no_formal_ino);
  45         dent->de_inum.no_addr = cpu_to_be64(ip->i_no_addr);
  46 }
  47
  48
  49 void gfs2_inode_attr_in(struct gfs2_inode *ip);
  50 struct inode *gfs2_inode_lookup(struct super_block *sb, u64 no_addr, unsigned type);
  51 struct inode *gfs2_ilookup(struct super_block *sb, u64 no_addr);
  52
  53 int gfs2_inode_refresh(struct gfs2_inode *ip);
  54
  55 int gfs2_dinode_dealloc(struct gfs2_inode *inode);
  56 int gfs2_change_nlink(struct gfs2_inode *ip, int diff);
  57 struct inode *gfs2_lookupi(struct inode *dir, const struct qstr *name,
  58                            int is_root, struct nameidata *nd);
  59 struct inode *gfs2_createi(struct gfs2_holder *ghs, const struct qstr *name,
  60                            unsigned int mode, dev_t dev);
  61 int gfs2_rmdiri(struct gfs2_inode *dip, const struct qstr *name,
  62                 struct gfs2_inode *ip);
  63 int gfs2_unlink_ok(struct gfs2_inode *dip, const struct qstr *name,
  64                    const struct gfs2_inode *ip);
  65 int gfs2_ok_to_move(struct gfs2_inode *this, struct gfs2_inode *to);
  66 int gfs2_readlinki(struct gfs2_inode *ip, char **buf, unsigned int *len);
  67 int gfs2_glock_nq_atime(struct gfs2_holder *gh);
  68 int gfs2_setattr_simple(struct gfs2_inode *ip, struct iattr *attr);
  69 struct inode *gfs2_lookup_simple(struct inode *dip, const char *name);
  70 void gfs2_dinode_out(const struct gfs2_inode *ip, void *buf);
  71 void gfs2_dinode_print(const struct gfs2_inode *ip);
  72
  73 #endif /* __INODE_DOT_H__ */
  74