projects / thirdparty / xfsprogs-dev.git / blame
| Commit | Line | Data |
|---|---|---|
| 959ef981 | 1 | // SPDX-License-Identifier: GPL-2.0 |
| 2bd0ea18 | 2 | /* |
| da23017d NS |
3 | * Copyright (c) 2000-2001,2005 Silicon Graphics, Inc. |
| 4 | * All Rights Reserved. | |
| 2bd0ea18 NS |
5 | */ |
| 6 | ||
| 7 | typedef struct fs_geometry { | |
| 8 | /* | |
| 9 | * these types should match the superblock types | |
| 10 | */ | |
| 14f8b681 | 11 | uint32_t sb_blocksize; /* blocksize (bytes) */ |
| 5a35bf2c DC |
12 | xfs_rfsblock_t sb_dblocks; /* # data blocks */ |
| 13 | xfs_rfsblock_t sb_rblocks; /* # realtime blocks */ | |
| 14 | xfs_rtblock_t sb_rextents; /* # realtime extents */ | |
| 5a35bf2c | 15 | xfs_fsblock_t sb_logstart; /* starting log block # */ |
| 2bd0ea18 NS |
16 | xfs_agblock_t sb_rextsize; /* realtime extent size (blocks )*/ |
| 17 | xfs_agblock_t sb_agblocks; /* # of blocks per ag */ | |
| 18 | xfs_agnumber_t sb_agcount; /* # of ags */ | |
| 19 | xfs_extlen_t sb_rbmblocks; /* # of rt bitmap blocks */ | |
| 20 | xfs_extlen_t sb_logblocks; /* # of log blocks */ | |
| 14f8b681 DW |
21 | uint16_t sb_sectsize; /* volume sector size (bytes) */ |
| 22 | uint16_t sb_inodesize; /* inode size (bytes) */ | |
| 23 | uint8_t sb_imax_pct; /* max % of fs for inode space */ | |
| 2bd0ea18 NS |
24 | |
| 25 | /* | |
| 26 | * these don't have to match the superblock types but are placed | |
| 27 | * before sb_shared_vn because these values don't have to be | |
| 28 | * checked manually. These variables will be set only on | |
| 29 | * filesystems with dependably good (fully initialized) | |
| 30 | * secondary superblock sectors, will be stamped in all | |
| 31 | * superblocks at mkfs time, and are features that cannot | |
| 32 | * be downgraded unless all superblocks in the filesystem | |
| 33 | * are rewritten. | |
| 34 | */ | |
| 35 | int sb_extflgbit; /* extent flag feature bit set */ | |
| 36 | ||
| 37 | /* | |
| 38 | * fields after this point have to be checked manually in compare_sb() | |
| 39 | */ | |
| 14f8b681 | 40 | uint8_t sb_shared_vn; /* shared version number */ |
| 2bd0ea18 | 41 | xfs_extlen_t sb_inoalignmt; /* inode chunk alignment, fsblocks */ |
| 14f8b681 DW |
42 | uint32_t sb_unit; /* stripe or raid unit */ |
| 43 | uint32_t sb_width; /* stripe or width unit */ | |
| 2bd0ea18 NS |
44 | |
| 45 | /* | |
| 46 | * these don't have to match, they track superblock properties | |
| 47 | * that could have been upgraded and/or downgraded during | |
| 48 | * run-time so that the primary superblock has them but the | |
| 49 | * secondaries do not. | |
| 50 | * Plus, they have associated data fields whose data fields may | |
| 51 | * be corrupt in cases where the filesystem was made on a | |
| 52 | * pre-6.5 campus alpha mkfs and the feature was enabled on | |
| 53 | * the filesystem later. | |
| 54 | */ | |
| 55 | int sb_ialignbit; /* sb has inode alignment bit set */ | |
| 56 | int sb_salignbit; /* sb has stripe alignment bit set */ | |
| 57 | int sb_sharedbit; /* sb has inode alignment bit set */ | |
| 58 | ||
| 59 | int sb_fully_zeroed; /* has zeroed secondary sb sectors */ | |
| 60 | } fs_geometry_t; | |
| 61 | ||
| 62 | typedef struct fs_geo_list { | |
| 63 | struct fs_geo_list *next; | |
| 64 | int refs; | |
| 65 | int index; | |
| 66 | fs_geometry_t geo; | |
| 67 | } fs_geo_list_t; | |
| 68 | ||
| 69 | /* | |
| 70 | * fields for sb_last_nonzero | |
| 71 | */ | |
| 72 | ||
| 73 | #define XR_SB_COUNTERS 0x0001 | |
| 74 | #define XR_SB_INOALIGN 0x0002 | |
| 75 | #define XR_SB_SALIGN 0x0004 | |
| 76 | ||
| 77 | /* | |
| 78 | * what got modified by verify_set_* routines | |
| 79 | */ | |
| 80 | ||
| 81 | #define XR_AG_SB 0x1 | |
| 82 | #define XR_AG_AGF 0x2 | |
| 83 | #define XR_AG_AGI 0x4 | |
| 84 | #define XR_AG_SB_SEC 0x8 |