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: */ 8 static 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 [__BCH_INODE_casefolded] = S_CASEFOLD, 14 }; 15 16 /* bcachefs inode flags -> FS_IOC_GETFLAGS: */ 17 static const __maybe_unused unsigned bch_flags_to_uflags[] = { 18 [__BCH_INODE_sync] = FS_SYNC_FL, 19 [__BCH_INODE_immutable] = FS_IMMUTABLE_FL, 20 [__BCH_INODE_append] = FS_APPEND_FL, 21 [__BCH_INODE_nodump] = FS_NODUMP_FL, 22 [__BCH_INODE_noatime] = FS_NOATIME_FL, 23 [__BCH_INODE_casefolded] = FS_CASEFOLD_FL, 24 }; 25 26 /* bcachefs inode flags -> FS_IOC_FSGETXATTR: */ 27 static const __maybe_unused unsigned bch_flags_to_xflags[] = { 28 [__BCH_INODE_sync] = FS_XFLAG_SYNC, 29 [__BCH_INODE_immutable] = FS_XFLAG_IMMUTABLE, 30 [__BCH_INODE_append] = FS_XFLAG_APPEND, 31 [__BCH_INODE_nodump] = FS_XFLAG_NODUMP, 32 [__BCH_INODE_noatime] = FS_XFLAG_NOATIME, 33 //[__BCH_INODE_PROJINHERIT] = FS_XFLAG_PROJINHERIT; 34 }; 35 36 #define set_flags(_map, _in, _out) \ 37 do { \ 38 unsigned _i; \ 39 \ 40 for (_i = 0; _i < ARRAY_SIZE(_map); _i++) \ 41 if ((_in) & (1 << _i)) \ 42 (_out) |= _map[_i]; \ 43 else \ 44 (_out) &= ~_map[_i]; \ 45 } while (0) 46 47 #define map_flags(_map, _in) \ 48 ({ \ 49 unsigned _out = 0; \ 50 \ 51 set_flags(_map, _in, _out); \ 52 _out; \ 53 }) 54 55 #define map_flags_rev(_map, _in) \ 56 ({ \ 57 unsigned _i, _out = 0; \ 58 \ 59 for (_i = 0; _i < ARRAY_SIZE(_map); _i++) \ 60 if ((_in) & _map[_i]) { \ 61 (_out) |= 1 << _i; \ 62 (_in) &= ~_map[_i]; \ 63 } \ 64 (_out); \ 65 }) 66 67 #define map_defined(_map) \ 68 ({ \ 69 unsigned _in = ~0; \ 70 \ 71 map_flags_rev(_map, _in); \ 72 }) 73 74 /* Set VFS inode flags from bcachefs inode: */ 75 static inline void bch2_inode_flags_to_vfs(struct bch_inode_info *inode) 76 { 77 set_flags(bch_flags_to_vfs, inode->ei_inode.bi_flags, inode->v.i_flags); 78 } 79 80 long bch2_fs_file_ioctl(struct file *, unsigned, unsigned long); 81 long bch2_compat_fs_ioctl(struct file *, unsigned, unsigned long); 82 83 #endif /* _BCACHEFS_FS_IOCTL_H */ 84