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959ef981 | 1 | // SPDX-License-Identifier: GPL-2.0 |
d321ceac | 2 | /* |
f302e9e4 | 3 | * Copyright (c) 2000-2005 Silicon Graphics, Inc.All Rights Reserved. |
d321ceac NS |
4 | */ |
5 | #ifndef LIBXLOG_H | |
6 | #define LIBXLOG_H | |
7 | ||
d321ceac NS |
8 | /* |
9 | * define the userlevel xlog_t to be the subset of the kernel's | |
10 | * xlog_t that we actually need to get our work done, avoiding | |
11 | * the need to define any exotic kernel types in userland. | |
12 | */ | |
999f0b9c | 13 | struct xlog { |
7448af58 DW |
14 | atomic64_t l_tail_lsn; /* lsn of 1st LR w/ unflush buffers */ |
15 | atomic64_t l_last_sync_lsn;/* lsn of last LR on disk */ | |
d321ceac | 16 | xfs_mount_t *l_mp; /* mount point */ |
75c8b434 | 17 | struct xfs_buftarg *l_dev; /* dev_t of log */ |
d321ceac | 18 | xfs_daddr_t l_logBBstart; /* start block of log */ |
d321ceac NS |
19 | int l_logBBsize; /* size of log in 512 byte chunks */ |
20 | int l_curr_cycle; /* Cycle number of log writes */ | |
21 | int l_prev_cycle; /* Cycle # b4 last block increment */ | |
22 | int l_curr_block; /* current logical block of log */ | |
23 | int l_prev_block; /* previous logical block of log */ | |
24 | int l_iclog_size; /* size of log in bytes */ | |
25 | int l_iclog_size_log;/* log power size of log */ | |
26 | int l_iclog_bufs; /* number of iclog buffers */ | |
c40bdaa2 DC |
27 | atomic64_t l_grant_reserve_head; |
28 | atomic64_t l_grant_write_head; | |
a562a63b | 29 | uint l_sectbb_log; /* log2 of sector size in bbs */ |
2aa2e7b9 BN |
30 | uint l_sectbb_mask; /* sector size (in BBs) |
31 | * alignment mask */ | |
c40bdaa2 | 32 | int l_sectBBsize; /* size of log sector in 512 byte chunks */ |
999f0b9c | 33 | }; |
d321ceac | 34 | |
6b803e5a | 35 | #include "xfs_log_recover.h" |
d321ceac NS |
36 | |
37 | /* | |
38 | * macros mapping kernel code to user code | |
b626fb59 DC |
39 | * |
40 | * XXX: this is duplicated stuff - should be shared with libxfs. | |
d321ceac | 41 | */ |
93d9f139 | 42 | #ifndef EFSCORRUPTED |
dfc130f3 | 43 | #define EFSCORRUPTED 990 |
93d9f139 | 44 | #endif |
4ca431fc | 45 | #define STATIC static |
4ca431fc | 46 | #define XFS_ERROR(e) (e) |
dc0bd4a0 | 47 | #ifdef DEBUG |
48 | #define XFS_ERROR_REPORT(e,l,mp) fprintf(stderr, "ERROR: %s\n", e) | |
49 | #else | |
4ca431fc | 50 | #define XFS_ERROR_REPORT(e,l,mp) ((void) 0) |
dc0bd4a0 | 51 | #endif |
4ca431fc | 52 | #define XFS_CORRUPTION_ERROR(e,l,mp,m) ((void) 0) |
46eca962 | 53 | #define XFS_MOUNT_WAS_CLEAN 0x1 |
4ca431fc | 54 | #define unlikely(x) (x) |
b626fb59 DC |
55 | #define xfs_alert(mp,fmt,args...) cmn_err(CE_ALERT,fmt, ## args) |
56 | #define xfs_warn(mp,fmt,args...) cmn_err(CE_WARN,fmt, ## args) | |
57 | #define xfs_hex_dump(d,n) ((void) 0) | |
58 | #define __round_mask(x, y) ((__typeof__(x))((y)-1)) | |
59 | #define round_up(x, y) ((((x)-1) | __round_mask(x, y))+1) | |
60 | #define round_down(x, y) ((x) & ~__round_mask(x, y)) | |
d321ceac | 61 | |
1552a820 NS |
62 | extern void xlog_warn(char *fmt,...); |
63 | extern void xlog_exit(char *fmt,...); | |
64 | extern void xlog_panic(char *fmt,...); | |
d321ceac | 65 | |
d321ceac | 66 | /* exports */ |
d321ceac | 67 | extern int print_exit; |
873b7c85 GO |
68 | extern int print_skip_uuid; |
69 | extern int print_record_header; | |
d321ceac | 70 | |
c42edb2e CH |
71 | void xlog_init(struct xfs_mount *mp, struct xlog *log); |
72 | int xlog_is_dirty(struct xfs_mount *mp, struct xlog *log); | |
7ac353a9 | 73 | |
999f0b9c | 74 | extern struct xfs_buf *xlog_get_bp(struct xlog *, int); |
999f0b9c | 75 | extern int xlog_bread(struct xlog *log, xfs_daddr_t blk_no, int nbblks, |
167137fe | 76 | struct xfs_buf *bp, char **offset); |
999f0b9c | 77 | extern int xlog_bread_noalign(struct xlog *log, xfs_daddr_t blk_no, |
167137fe | 78 | int nbblks, struct xfs_buf *bp); |
5e656dbb | 79 | |
999f0b9c | 80 | extern int xlog_find_zeroed(struct xlog *log, xfs_daddr_t *blk_no); |
167137fe | 81 | extern int xlog_find_cycle_start(struct xlog *log, struct xfs_buf *bp, |
f8149110 | 82 | xfs_daddr_t first_blk, xfs_daddr_t *last_blk, |
5e656dbb | 83 | uint cycle); |
999f0b9c | 84 | extern int xlog_find_tail(struct xlog *log, xfs_daddr_t *head_blk, |
5e656dbb BN |
85 | xfs_daddr_t *tail_blk); |
86 | ||
999f0b9c | 87 | extern int xlog_recover(struct xlog *log, int readonly); |
d60ba955 | 88 | extern void xlog_recover_print_data(char *p, int len); |
3d16b59a | 89 | extern void xlog_recover_print_logitem(struct xlog_recover_item *item); |
19879397 | 90 | extern void xlog_recover_print_trans_head(struct xlog_recover *tr); |
999f0b9c | 91 | extern int xlog_print_find_oldest(struct xlog *log, xfs_daddr_t *last_blk); |
d321ceac | 92 | |
d321ceac | 93 | /* for transactional view */ |
19879397 ES |
94 | extern void xlog_recover_print_trans_head(struct xlog_recover *tr); |
95 | extern void xlog_recover_print_trans(struct xlog_recover *trans, | |
c40bdaa2 | 96 | struct list_head *itemq, int print); |
999f0b9c | 97 | extern int xlog_do_recovery_pass(struct xlog *log, xfs_daddr_t head_blk, |
5e656dbb | 98 | xfs_daddr_t tail_blk, int pass); |
19879397 | 99 | extern int xlog_recover_do_trans(struct xlog *log, struct xlog_recover *trans, |
5e656dbb | 100 | int pass); |
f8149110 | 101 | extern int xlog_header_check_recover(xfs_mount_t *mp, |
5e656dbb BN |
102 | xlog_rec_header_t *head); |
103 | extern int xlog_header_check_mount(xfs_mount_t *mp, | |
104 | xlog_rec_header_t *head); | |
d321ceac | 105 | |
c40bdaa2 DC |
106 | #define xlog_assign_atomic_lsn(l,a,b) ((void) 0) |
107 | #define xlog_assign_grant_head(l,a,b) ((void) 0) | |
d321ceac | 108 | #endif /* LIBXLOG_H */ |