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Linux kernel mirror (for testing)
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linux
1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _BCACHEFS_FS_IOCTL_H
3#define _BCACHEFS_FS_IOCTL_H
4
5/* Inode flags: */
6
7/* bcachefs inode flags -> vfs inode flags: */
8static const __maybe_unused unsigned bch_flags_to_vfs[] = {
9 [__BCH_INODE_sync] = S_SYNC,
10 [__BCH_INODE_immutable] = S_IMMUTABLE,
11 [__BCH_INODE_append] = S_APPEND,
12 [__BCH_INODE_noatime] = S_NOATIME,
13};
14
15/* bcachefs inode flags -> FS_IOC_GETFLAGS: */
16static const __maybe_unused unsigned bch_flags_to_uflags[] = {
17 [__BCH_INODE_sync] = FS_SYNC_FL,
18 [__BCH_INODE_immutable] = FS_IMMUTABLE_FL,
19 [__BCH_INODE_append] = FS_APPEND_FL,
20 [__BCH_INODE_nodump] = FS_NODUMP_FL,
21 [__BCH_INODE_noatime] = FS_NOATIME_FL,
22};
23
24/* bcachefs inode flags -> FS_IOC_FSGETXATTR: */
25static const __maybe_unused unsigned bch_flags_to_xflags[] = {
26 [__BCH_INODE_sync] = FS_XFLAG_SYNC,
27 [__BCH_INODE_immutable] = FS_XFLAG_IMMUTABLE,
28 [__BCH_INODE_append] = FS_XFLAG_APPEND,
29 [__BCH_INODE_nodump] = FS_XFLAG_NODUMP,
30 [__BCH_INODE_noatime] = FS_XFLAG_NOATIME,
31 //[__BCH_INODE_PROJINHERIT] = FS_XFLAG_PROJINHERIT;
32};
33
34#define set_flags(_map, _in, _out) \
35do { \
36 unsigned _i; \
37 \
38 for (_i = 0; _i < ARRAY_SIZE(_map); _i++) \
39 if ((_in) & (1 << _i)) \
40 (_out) |= _map[_i]; \
41 else \
42 (_out) &= ~_map[_i]; \
43} while (0)
44
45#define map_flags(_map, _in) \
46({ \
47 unsigned _out = 0; \
48 \
49 set_flags(_map, _in, _out); \
50 _out; \
51})
52
53#define map_flags_rev(_map, _in) \
54({ \
55 unsigned _i, _out = 0; \
56 \
57 for (_i = 0; _i < ARRAY_SIZE(_map); _i++) \
58 if ((_in) & _map[_i]) { \
59 (_out) |= 1 << _i; \
60 (_in) &= ~_map[_i]; \
61 } \
62 (_out); \
63})
64
65#define map_defined(_map) \
66({ \
67 unsigned _in = ~0; \
68 \
69 map_flags_rev(_map, _in); \
70})
71
72/* Set VFS inode flags from bcachefs inode: */
73static inline void bch2_inode_flags_to_vfs(struct bch_inode_info *inode)
74{
75 set_flags(bch_flags_to_vfs, inode->ei_inode.bi_flags, inode->v.i_flags);
76}
77
78long bch2_fs_file_ioctl(struct file *, unsigned, unsigned long);
79long bch2_compat_fs_ioctl(struct file *, unsigned, unsigned long);
80
81#endif /* _BCACHEFS_FS_IOCTL_H */