Commit | Line | Data |
---|---|---|
7336d0e6 | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
b3b94faa DT |
2 | /* |
3 | * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. | |
3a8a9a10 | 4 | * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved. |
b3b94faa DT |
5 | */ |
6 | ||
7 | #ifndef __INODE_DOT_H__ | |
8 | #define __INODE_DOT_H__ | |
9 | ||
b2760583 | 10 | #include <linux/fs.h> |
b1e71b06 SW |
11 | #include <linux/buffer_head.h> |
12 | #include <linux/mm.h> | |
77658aad SW |
13 | #include "util.h" |
14 | ||
b1e71b06 SW |
15 | extern int gfs2_releasepage(struct page *page, gfp_t gfp_mask); |
16 | extern int gfs2_internal_read(struct gfs2_inode *ip, | |
b1e71b06 SW |
17 | char *buf, loff_t *pos, unsigned size); |
18 | extern void gfs2_set_aops(struct inode *inode); | |
19 | ||
dbb7cae2 | 20 | static inline int gfs2_is_stuffed(const struct gfs2_inode *ip) |
b3b94faa | 21 | { |
ecc30c79 | 22 | return !ip->i_height; |
b3b94faa DT |
23 | } |
24 | ||
dbb7cae2 | 25 | static inline int gfs2_is_jdata(const struct gfs2_inode *ip) |
b3b94faa | 26 | { |
383f01fb | 27 | return ip->i_diskflags & GFS2_DIF_JDATA; |
b3b94faa DT |
28 | } |
29 | ||
977767a7 | 30 | static inline bool gfs2_is_ordered(const struct gfs2_sbd *sdp) |
bf36a713 | 31 | { |
977767a7 | 32 | return sdp->sd_args.ar_data == GFS2_DATA_ORDERED; |
bf36a713 SW |
33 | } |
34 | ||
977767a7 | 35 | static inline bool gfs2_is_writeback(const struct gfs2_sbd *sdp) |
5561093e | 36 | { |
977767a7 | 37 | return sdp->sd_args.ar_data == GFS2_DATA_WRITEBACK; |
5561093e SW |
38 | } |
39 | ||
dbb7cae2 | 40 | static inline int gfs2_is_dir(const struct gfs2_inode *ip) |
18ec7d5c | 41 | { |
b60623c2 | 42 | return S_ISDIR(ip->i_inode.i_mode); |
18ec7d5c SW |
43 | } |
44 | ||
77658aad SW |
45 | static inline void gfs2_set_inode_blocks(struct inode *inode, u64 blocks) |
46 | { | |
47 | inode->i_blocks = blocks << | |
48 | (GFS2_SB(inode)->sd_sb.sb_bsize_shift - GFS2_BASIC_BLOCK_SHIFT); | |
49 | } | |
50 | ||
51 | static inline u64 gfs2_get_inode_blocks(const struct inode *inode) | |
9e2dbdac | 52 | { |
77658aad | 53 | return inode->i_blocks >> |
9e2dbdac SW |
54 | (GFS2_SB(inode)->sd_sb.sb_bsize_shift - GFS2_BASIC_BLOCK_SHIFT); |
55 | } | |
56 | ||
77658aad SW |
57 | static inline void gfs2_add_inode_blocks(struct inode *inode, s64 change) |
58 | { | |
7c03e756 TS |
59 | change <<= inode->i_blkbits - GFS2_BASIC_BLOCK_SHIFT; |
60 | gfs2_assert(GFS2_SB(inode), (change >= 0 || inode->i_blocks >= -change)); | |
77658aad SW |
61 | inode->i_blocks += change; |
62 | } | |
63 | ||
dbb7cae2 SW |
64 | static inline int gfs2_check_inum(const struct gfs2_inode *ip, u64 no_addr, |
65 | u64 no_formal_ino) | |
66 | { | |
67 | return ip->i_no_addr == no_addr && ip->i_no_formal_ino == no_formal_ino; | |
68 | } | |
69 | ||
bb8d8a6f SW |
70 | static inline void gfs2_inum_out(const struct gfs2_inode *ip, |
71 | struct gfs2_dirent *dent) | |
72 | { | |
73 | dent->de_inum.no_formal_ino = cpu_to_be64(ip->i_no_formal_ino); | |
74 | dent->de_inum.no_addr = cpu_to_be64(ip->i_no_addr); | |
75 | } | |
76 | ||
a2e0f799 SW |
77 | static inline int gfs2_check_internal_file_size(struct inode *inode, |
78 | u64 minsize, u64 maxsize) | |
79 | { | |
80 | u64 size = i_size_read(inode); | |
81 | if (size < minsize || size > maxsize) | |
82 | goto err; | |
47a9a527 | 83 | if (size & (BIT(inode->i_blkbits) - 1)) |
a2e0f799 SW |
84 | goto err; |
85 | return 0; | |
86 | err: | |
87 | gfs2_consist_inode(GFS2_I(inode)); | |
88 | return -EIO; | |
89 | } | |
bb8d8a6f | 90 | |
b1e71b06 | 91 | extern struct inode *gfs2_inode_lookup(struct super_block *sb, unsigned type, |
3ce37b2c AG |
92 | u64 no_addr, u64 no_formal_ino, |
93 | unsigned int blktype); | |
044b9414 | 94 | extern struct inode *gfs2_lookup_by_inum(struct gfs2_sbd *sdp, u64 no_addr, |
6bdcadea | 95 | u64 no_formal_ino, |
044b9414 | 96 | unsigned int blktype); |
b1e71b06 SW |
97 | |
98 | extern int gfs2_inode_refresh(struct gfs2_inode *ip); | |
99 | ||
b1e71b06 SW |
100 | extern struct inode *gfs2_lookupi(struct inode *dir, const struct qstr *name, |
101 | int is_root); | |
10556cb2 | 102 | extern int gfs2_permission(struct inode *inode, int mask); |
ab9bbda0 | 103 | extern int gfs2_setattr_simple(struct inode *inode, struct iattr *attr); |
b1e71b06 SW |
104 | extern struct inode *gfs2_lookup_simple(struct inode *dip, const char *name); |
105 | extern void gfs2_dinode_out(const struct gfs2_inode *ip, void *buf); | |
6d4ade98 | 106 | extern int gfs2_open_common(struct inode *inode, struct file *file); |
3a27411c AG |
107 | extern loff_t gfs2_seek_data(struct file *file, loff_t offset); |
108 | extern loff_t gfs2_seek_hole(struct file *file, loff_t offset); | |
b3b94faa | 109 | |
10d21988 CH |
110 | extern const struct file_operations gfs2_file_fops_nolock; |
111 | extern const struct file_operations gfs2_dir_fops_nolock; | |
b2760583 SW |
112 | |
113 | extern void gfs2_set_inode_flags(struct inode *inode); | |
f057f6cd SW |
114 | |
115 | #ifdef CONFIG_GFS2_FS_LOCKING_DLM | |
10d21988 CH |
116 | extern const struct file_operations gfs2_file_fops; |
117 | extern const struct file_operations gfs2_dir_fops; | |
118 | ||
f057f6cd SW |
119 | static inline int gfs2_localflocks(const struct gfs2_sbd *sdp) |
120 | { | |
121 | return sdp->sd_args.ar_localflocks; | |
122 | } | |
123 | #else /* Single node only */ | |
10d21988 CH |
124 | #define gfs2_file_fops gfs2_file_fops_nolock |
125 | #define gfs2_dir_fops gfs2_dir_fops_nolock | |
126 | ||
f057f6cd SW |
127 | static inline int gfs2_localflocks(const struct gfs2_sbd *sdp) |
128 | { | |
129 | return 1; | |
130 | } | |
131 | #endif /* CONFIG_GFS2_FS_LOCKING_DLM */ | |
b2760583 | 132 | |
b3b94faa DT |
133 | #endif /* __INODE_DOT_H__ */ |
134 |