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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#include <linux/fs.h>
14#include <linux/buffer_head.h>
15#include <linux/mm.h>
16#include "util.h"
17
18extern int gfs2_releasepage(struct page *page, gfp_t gfp_mask);
19extern int gfs2_internal_read(struct gfs2_inode *ip,
20 char *buf, loff_t *pos, unsigned size);
21extern void gfs2_set_aops(struct inode *inode);
22
23static inline int gfs2_is_stuffed(const struct gfs2_inode *ip)
24{
25 return !ip->i_height;
26}
27
28static inline int gfs2_is_jdata(const struct gfs2_inode *ip)
29{
30 return ip->i_diskflags & GFS2_DIF_JDATA;
31}
32
33static inline int gfs2_is_writeback(const struct gfs2_inode *ip)
34{
35 const struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
36 return (sdp->sd_args.ar_data == GFS2_DATA_WRITEBACK) && !gfs2_is_jdata(ip);
37}
38
39static inline int gfs2_is_ordered(const struct gfs2_inode *ip)
40{
41 const struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
42 return (sdp->sd_args.ar_data == GFS2_DATA_ORDERED) && !gfs2_is_jdata(ip);
43}
44
45static inline int gfs2_is_dir(const struct gfs2_inode *ip)
46{
47 return S_ISDIR(ip->i_inode.i_mode);
48}
49
50static inline void gfs2_set_inode_blocks(struct inode *inode, u64 blocks)
51{
52 inode->i_blocks = blocks <<
53 (GFS2_SB(inode)->sd_sb.sb_bsize_shift - GFS2_BASIC_BLOCK_SHIFT);
54}
55
56static inline u64 gfs2_get_inode_blocks(const struct inode *inode)
57{
58 return inode->i_blocks >>
59 (GFS2_SB(inode)->sd_sb.sb_bsize_shift - GFS2_BASIC_BLOCK_SHIFT);
60}
61
62static inline void gfs2_add_inode_blocks(struct inode *inode, s64 change)
63{
64 gfs2_assert(GFS2_SB(inode), (change >= 0 || inode->i_blocks > -change));
65 change *= (GFS2_SB(inode)->sd_sb.sb_bsize/GFS2_BASIC_BLOCK);
66 inode->i_blocks += change;
67}
68
69static inline int gfs2_check_inum(const struct gfs2_inode *ip, u64 no_addr,
70 u64 no_formal_ino)
71{
72 return ip->i_no_addr == no_addr && ip->i_no_formal_ino == no_formal_ino;
73}
74
75static inline void gfs2_inum_out(const struct gfs2_inode *ip,
76 struct gfs2_dirent *dent)
77{
78 dent->de_inum.no_formal_ino = cpu_to_be64(ip->i_no_formal_ino);
79 dent->de_inum.no_addr = cpu_to_be64(ip->i_no_addr);
80}
81
82static inline int gfs2_check_internal_file_size(struct inode *inode,
83 u64 minsize, u64 maxsize)
84{
85 u64 size = i_size_read(inode);
86 if (size < minsize || size > maxsize)
87 goto err;
88 if (size & ((1 << inode->i_blkbits) - 1))
89 goto err;
90 return 0;
91err:
92 gfs2_consist_inode(GFS2_I(inode));
93 return -EIO;
94}
95
96extern struct inode *gfs2_inode_lookup(struct super_block *sb, unsigned type,
97 u64 no_addr, u64 no_formal_ino);
98extern struct inode *gfs2_lookup_by_inum(struct gfs2_sbd *sdp, u64 no_addr,
99 u64 *no_formal_ino,
100 unsigned int blktype);
101extern struct inode *gfs2_ilookup(struct super_block *sb, u64 no_addr);
102
103extern int gfs2_inode_refresh(struct gfs2_inode *ip);
104
105extern struct inode *gfs2_lookupi(struct inode *dir, const struct qstr *name,
106 int is_root);
107extern int gfs2_permission(struct inode *inode, int mask);
108extern int gfs2_setattr_simple(struct inode *inode, struct iattr *attr);
109extern struct inode *gfs2_lookup_simple(struct inode *dip, const char *name);
110extern void gfs2_dinode_out(const struct gfs2_inode *ip, void *buf);
111extern int gfs2_open_common(struct inode *inode, struct file *file);
112
113extern const struct inode_operations gfs2_file_iops;
114extern const struct inode_operations gfs2_dir_iops;
115extern const struct inode_operations gfs2_symlink_iops;
116extern const struct file_operations gfs2_file_fops_nolock;
117extern const struct file_operations gfs2_dir_fops_nolock;
118
119extern void gfs2_set_inode_flags(struct inode *inode);
120
121#ifdef CONFIG_GFS2_FS_LOCKING_DLM
122extern const struct file_operations gfs2_file_fops;
123extern const struct file_operations gfs2_dir_fops;
124
125static inline int gfs2_localflocks(const struct gfs2_sbd *sdp)
126{
127 return sdp->sd_args.ar_localflocks;
128}
129#else /* Single node only */
130#define gfs2_file_fops gfs2_file_fops_nolock
131#define gfs2_dir_fops gfs2_dir_fops_nolock
132
133static inline int gfs2_localflocks(const struct gfs2_sbd *sdp)
134{
135 return 1;
136}
137#endif /* CONFIG_GFS2_FS_LOCKING_DLM */
138
139#endif /* __INODE_DOT_H__ */
140
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 __INODE_DOT_H__
8#define __INODE_DOT_H__
9
10#include <linux/fs.h>
11#include <linux/buffer_head.h>
12#include <linux/mm.h>
13#include "util.h"
14
15bool gfs2_release_folio(struct folio *folio, gfp_t gfp_mask);
16ssize_t gfs2_internal_read(struct gfs2_inode *ip,
17 char *buf, loff_t *pos, size_t size);
18void gfs2_set_aops(struct inode *inode);
19
20static inline int gfs2_is_stuffed(const struct gfs2_inode *ip)
21{
22 return !ip->i_height;
23}
24
25static inline int gfs2_is_jdata(const struct gfs2_inode *ip)
26{
27 return ip->i_diskflags & GFS2_DIF_JDATA;
28}
29
30static inline bool gfs2_is_ordered(const struct gfs2_sbd *sdp)
31{
32 return sdp->sd_args.ar_data == GFS2_DATA_ORDERED;
33}
34
35static inline bool gfs2_is_writeback(const struct gfs2_sbd *sdp)
36{
37 return sdp->sd_args.ar_data == GFS2_DATA_WRITEBACK;
38}
39
40static inline int gfs2_is_dir(const struct gfs2_inode *ip)
41{
42 return S_ISDIR(ip->i_inode.i_mode);
43}
44
45static inline void gfs2_set_inode_blocks(struct inode *inode, u64 blocks)
46{
47 inode->i_blocks = blocks << (inode->i_blkbits - 9);
48}
49
50static inline u64 gfs2_get_inode_blocks(const struct inode *inode)
51{
52 return inode->i_blocks >> (inode->i_blkbits - 9);
53}
54
55static inline void gfs2_add_inode_blocks(struct inode *inode, s64 change)
56{
57 change <<= inode->i_blkbits - 9;
58 gfs2_assert(GFS2_SB(inode), (change >= 0 || inode->i_blocks >= -change));
59 inode->i_blocks += change;
60}
61
62static inline int gfs2_check_inum(const struct gfs2_inode *ip, u64 no_addr,
63 u64 no_formal_ino)
64{
65 return ip->i_no_addr == no_addr && ip->i_no_formal_ino == no_formal_ino;
66}
67
68static inline void gfs2_inum_out(const struct gfs2_inode *ip,
69 struct gfs2_dirent *dent)
70{
71 dent->de_inum.no_formal_ino = cpu_to_be64(ip->i_no_formal_ino);
72 dent->de_inum.no_addr = cpu_to_be64(ip->i_no_addr);
73}
74
75static inline int gfs2_check_internal_file_size(struct inode *inode,
76 u64 minsize, u64 maxsize)
77{
78 u64 size = i_size_read(inode);
79 if (size < minsize || size > maxsize)
80 goto err;
81 if (size & (BIT(inode->i_blkbits) - 1))
82 goto err;
83 return 0;
84err:
85 gfs2_consist_inode(GFS2_I(inode));
86 return -EIO;
87}
88
89struct inode *gfs2_inode_lookup(struct super_block *sb, unsigned type,
90 u64 no_addr, u64 no_formal_ino,
91 unsigned int blktype);
92struct inode *gfs2_lookup_by_inum(struct gfs2_sbd *sdp, u64 no_addr,
93 u64 no_formal_ino,
94 unsigned int blktype);
95
96int gfs2_inode_refresh(struct gfs2_inode *ip);
97
98struct inode *gfs2_lookupi(struct inode *dir, const struct qstr *name,
99 int is_root);
100int gfs2_permission(struct mnt_idmap *idmap,
101 struct inode *inode, int mask);
102struct inode *gfs2_lookup_meta(struct inode *dip, const char *name);
103void gfs2_dinode_out(const struct gfs2_inode *ip, void *buf);
104int gfs2_open_common(struct inode *inode, struct file *file);
105loff_t gfs2_seek_data(struct file *file, loff_t offset);
106loff_t gfs2_seek_hole(struct file *file, loff_t offset);
107
108extern const struct file_operations gfs2_file_fops_nolock;
109extern const struct file_operations gfs2_dir_fops_nolock;
110
111int gfs2_fileattr_get(struct dentry *dentry, struct fileattr *fa);
112int gfs2_fileattr_set(struct mnt_idmap *idmap,
113 struct dentry *dentry, struct fileattr *fa);
114void gfs2_set_inode_flags(struct inode *inode);
115
116#ifdef CONFIG_GFS2_FS_LOCKING_DLM
117extern const struct file_operations gfs2_file_fops;
118extern const struct file_operations gfs2_dir_fops;
119
120static inline int gfs2_localflocks(const struct gfs2_sbd *sdp)
121{
122 return sdp->sd_args.ar_localflocks;
123}
124#else /* Single node only */
125#define gfs2_file_fops gfs2_file_fops_nolock
126#define gfs2_dir_fops gfs2_dir_fops_nolock
127
128static inline int gfs2_localflocks(const struct gfs2_sbd *sdp)
129{
130 return 1;
131}
132#endif /* CONFIG_GFS2_FS_LOCKING_DLM */
133
134#endif /* __INODE_DOT_H__ */
135