David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. |
Steven Whitehouse | 3a8a9a1 | 2006-05-18 15:09:15 -0400 | [diff] [blame] | 3 | * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved. |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 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 |
Steven Whitehouse | e9fc2aa | 2006-09-01 11:05:15 -0400 | [diff] [blame] | 7 | * of the GNU General Public License version 2. |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 8 | */ |
| 9 | |
| 10 | #ifndef __INODE_DOT_H__ |
| 11 | #define __INODE_DOT_H__ |
| 12 | |
Steven Whitehouse | 77658aa | 2008-02-12 14:17:27 +0000 | [diff] [blame] | 13 | #include "util.h" |
| 14 | |
Steven Whitehouse | dbb7cae | 2007-05-15 15:37:50 +0100 | [diff] [blame] | 15 | static inline int gfs2_is_stuffed(const struct gfs2_inode *ip) |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 16 | { |
Steven Whitehouse | ecc30c7 | 2008-01-28 10:37:35 +0000 | [diff] [blame] | 17 | return !ip->i_height; |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 18 | } |
| 19 | |
Steven Whitehouse | dbb7cae | 2007-05-15 15:37:50 +0100 | [diff] [blame] | 20 | static inline int gfs2_is_jdata(const struct gfs2_inode *ip) |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 21 | { |
| 22 | return ip->i_di.di_flags & GFS2_DIF_JDATA; |
| 23 | } |
| 24 | |
Steven Whitehouse | bf36a71 | 2007-10-17 08:35:19 +0100 | [diff] [blame] | 25 | static inline int gfs2_is_writeback(const struct gfs2_inode *ip) |
| 26 | { |
| 27 | const struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode); |
| 28 | return (sdp->sd_args.ar_data == GFS2_DATA_WRITEBACK) && !gfs2_is_jdata(ip); |
| 29 | } |
| 30 | |
Steven Whitehouse | 5561093 | 2007-10-17 08:47:38 +0100 | [diff] [blame] | 31 | static inline int gfs2_is_ordered(const struct gfs2_inode *ip) |
| 32 | { |
| 33 | const struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode); |
| 34 | return (sdp->sd_args.ar_data == GFS2_DATA_ORDERED) && !gfs2_is_jdata(ip); |
| 35 | } |
| 36 | |
Steven Whitehouse | dbb7cae | 2007-05-15 15:37:50 +0100 | [diff] [blame] | 37 | static inline int gfs2_is_dir(const struct gfs2_inode *ip) |
Steven Whitehouse | 18ec7d5 | 2006-02-08 11:50:51 +0000 | [diff] [blame] | 38 | { |
Steven Whitehouse | b60623c | 2006-11-01 12:22:46 -0500 | [diff] [blame] | 39 | return S_ISDIR(ip->i_inode.i_mode); |
Steven Whitehouse | 18ec7d5 | 2006-02-08 11:50:51 +0000 | [diff] [blame] | 40 | } |
| 41 | |
Steven Whitehouse | 77658aa | 2008-02-12 14:17:27 +0000 | [diff] [blame] | 42 | static inline void gfs2_set_inode_blocks(struct inode *inode, u64 blocks) |
Steven Whitehouse | 9e2dbda | 2006-11-08 15:45:46 -0500 | [diff] [blame] | 43 | { |
Steven Whitehouse | 77658aa | 2008-02-12 14:17:27 +0000 | [diff] [blame] | 44 | inode->i_blocks = blocks << |
Steven Whitehouse | 9e2dbda | 2006-11-08 15:45:46 -0500 | [diff] [blame] | 45 | (GFS2_SB(inode)->sd_sb.sb_bsize_shift - GFS2_BASIC_BLOCK_SHIFT); |
| 46 | } |
| 47 | |
Steven Whitehouse | 77658aa | 2008-02-12 14:17:27 +0000 | [diff] [blame] | 48 | static inline u64 gfs2_get_inode_blocks(const struct inode *inode) |
| 49 | { |
| 50 | return inode->i_blocks >> |
| 51 | (GFS2_SB(inode)->sd_sb.sb_bsize_shift - GFS2_BASIC_BLOCK_SHIFT); |
| 52 | } |
| 53 | |
| 54 | static inline void gfs2_add_inode_blocks(struct inode *inode, s64 change) |
| 55 | { |
| 56 | gfs2_assert(GFS2_SB(inode), (change >= 0 || inode->i_blocks > -change)); |
| 57 | change *= (GFS2_SB(inode)->sd_sb.sb_bsize/GFS2_BASIC_BLOCK); |
| 58 | inode->i_blocks += change; |
| 59 | } |
| 60 | |
Steven Whitehouse | dbb7cae | 2007-05-15 15:37:50 +0100 | [diff] [blame] | 61 | static inline int gfs2_check_inum(const struct gfs2_inode *ip, u64 no_addr, |
| 62 | u64 no_formal_ino) |
| 63 | { |
| 64 | return ip->i_no_addr == no_addr && ip->i_no_formal_ino == no_formal_ino; |
| 65 | } |
| 66 | |
Steven Whitehouse | bb8d8a6 | 2007-06-01 14:11:58 +0100 | [diff] [blame] | 67 | static inline void gfs2_inum_out(const struct gfs2_inode *ip, |
| 68 | struct gfs2_dirent *dent) |
| 69 | { |
| 70 | dent->de_inum.no_formal_ino = cpu_to_be64(ip->i_no_formal_ino); |
| 71 | dent->de_inum.no_addr = cpu_to_be64(ip->i_no_addr); |
| 72 | } |
| 73 | |
| 74 | |
Wendy Cheng | 35dcc52 | 2007-06-27 17:07:53 -0400 | [diff] [blame] | 75 | void gfs2_set_iop(struct inode *inode); |
Wendy Cheng | bb9bcf0 | 2007-06-27 17:07:08 -0400 | [diff] [blame] | 76 | struct inode *gfs2_inode_lookup(struct super_block *sb, unsigned type, |
Benjamin Marzinski | 7a9f53b | 2007-09-18 13:33:18 -0500 | [diff] [blame] | 77 | u64 no_addr, u64 no_formal_ino, |
| 78 | int skip_freeing); |
Steven Whitehouse | dbb7cae | 2007-05-15 15:37:50 +0100 | [diff] [blame] | 79 | struct inode *gfs2_ilookup(struct super_block *sb, u64 no_addr); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 80 | |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 81 | int gfs2_inode_refresh(struct gfs2_inode *ip); |
| 82 | |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 83 | int gfs2_dinode_dealloc(struct gfs2_inode *inode); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 84 | int gfs2_change_nlink(struct gfs2_inode *ip, int diff); |
Steven Whitehouse | 907b9bc | 2006-09-25 09:26:04 -0400 | [diff] [blame] | 85 | struct inode *gfs2_lookupi(struct inode *dir, const struct qstr *name, |
Al Viro | a569c71 | 2008-07-23 14:42:05 -0400 | [diff] [blame] | 86 | int is_root); |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 87 | struct inode *gfs2_createi(struct gfs2_holder *ghs, const struct qstr *name, |
Steven Whitehouse | e7f14f4 | 2006-10-31 21:45:08 -0500 | [diff] [blame] | 88 | unsigned int mode, dev_t dev); |
Steven Whitehouse | feaa7bb | 2006-06-14 15:32:57 -0400 | [diff] [blame] | 89 | int gfs2_rmdiri(struct gfs2_inode *dip, const struct qstr *name, |
| 90 | struct gfs2_inode *ip); |
| 91 | int gfs2_unlink_ok(struct gfs2_inode *dip, const struct qstr *name, |
Steven Whitehouse | dbb7cae | 2007-05-15 15:37:50 +0100 | [diff] [blame] | 92 | const struct gfs2_inode *ip); |
Miklos Szeredi | f58ba88 | 2008-07-02 21:12:01 +0200 | [diff] [blame] | 93 | int gfs2_permission(struct inode *inode, int mask); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 94 | int gfs2_ok_to_move(struct gfs2_inode *this, struct gfs2_inode *to); |
| 95 | int gfs2_readlinki(struct gfs2_inode *ip, char **buf, unsigned int *len); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 96 | int gfs2_glock_nq_atime(struct gfs2_holder *gh); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 97 | int gfs2_setattr_simple(struct gfs2_inode *ip, struct iattr *attr); |
Steven Whitehouse | c752666 | 2006-03-20 12:30:04 -0500 | [diff] [blame] | 98 | struct inode *gfs2_lookup_simple(struct inode *dip, const char *name); |
Steven Whitehouse | bb8d8a6 | 2007-06-01 14:11:58 +0100 | [diff] [blame] | 99 | void gfs2_dinode_out(const struct gfs2_inode *ip, void *buf); |
| 100 | void gfs2_dinode_print(const struct gfs2_inode *ip); |
David Teigland | b3b94fa | 2006-01-16 16:50:04 +0000 | [diff] [blame] | 101 | |
| 102 | #endif /* __INODE_DOT_H__ */ |
| 103 | |