projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 7336d0e6 | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
| b3b94faa DT |
2 | /* |
| 3 | * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. | |
| d0109bfa | 4 | * Copyright (C) 2004-2008 Red Hat, Inc. All rights reserved. |
| b3b94faa DT |
5 | */ |
| 6 | ||
| 7 | #ifndef __LOPS_DOT_H__ | |
| 8 | #define __LOPS_DOT_H__ | |
| 9 | ||
| f2f7ba52 SW |
10 | #include <linux/list.h> |
| 11 | #include "incore.h" | |
| 12 | ||
| 2332c443 RP |
13 | #define BUF_OFFSET \ |
| 14 | ((sizeof(struct gfs2_log_descriptor) + sizeof(__be64) - 1) & \ | |
| 15 | ~(sizeof(__be64) - 1)) | |
| 16 | #define DATABUF_OFFSET \ | |
| 17 | ((sizeof(struct gfs2_log_descriptor) + (2 * sizeof(__be64) - 1)) & \ | |
| 18 | ~(2 * sizeof(__be64) - 1)) | |
| 19 | ||
| b09e593d | 20 | extern const struct gfs2_log_operations *gfs2_log_ops[]; |
| c1696fb8 BP |
21 | extern u64 gfs2_log_bmap(struct gfs2_sbd *sdp); |
| 22 | extern void gfs2_log_write(struct gfs2_sbd *sdp, struct page *page, | |
| 23 | unsigned size, unsigned offset, u64 blkno); | |
| e8c92ed7 | 24 | extern void gfs2_log_write_page(struct gfs2_sbd *sdp, struct page *page); |
| f4686c26 | 25 | extern void gfs2_log_submit_bio(struct bio **biop, int opf); |
| 767f433f | 26 | extern void gfs2_pin(struct gfs2_sbd *sdp, struct buffer_head *bh); |
| f4686c26 AD |
27 | extern int gfs2_find_jhead(struct gfs2_jdesc *jd, |
| 28 | struct gfs2_log_header_host *head, bool keep_cache); | |
| b3b94faa | 29 | |
| 2332c443 RP |
30 | static inline unsigned int buf_limit(struct gfs2_sbd *sdp) |
| 31 | { | |
| 32 | unsigned int limit; | |
| 33 | ||
| 34 | limit = (sdp->sd_sb.sb_bsize - BUF_OFFSET) / sizeof(__be64); | |
| 35 | return limit; | |
| 36 | } | |
| 37 | ||
| 38 | static inline unsigned int databuf_limit(struct gfs2_sbd *sdp) | |
| 39 | { | |
| 40 | unsigned int limit; | |
| 41 | ||
| 42 | limit = (sdp->sd_sb.sb_bsize - DATABUF_OFFSET) / (2 * sizeof(__be64)); | |
| 43 | return limit; | |
| 44 | } | |
| 45 | ||
| d69a3c65 SW |
46 | static inline void lops_before_commit(struct gfs2_sbd *sdp, |
| 47 | struct gfs2_trans *tr) | |
| b3b94faa DT |
48 | { |
| 49 | int x; | |
| 50 | for (x = 0; gfs2_log_ops[x]; x++) | |
| 51 | if (gfs2_log_ops[x]->lo_before_commit) | |
| d69a3c65 | 52 | gfs2_log_ops[x]->lo_before_commit(sdp, tr); |
| b3b94faa DT |
53 | } |
| 54 | ||
| 16ca9412 BM |
55 | static inline void lops_after_commit(struct gfs2_sbd *sdp, |
| 56 | struct gfs2_trans *tr) | |
| b3b94faa DT |
57 | { |
| 58 | int x; | |
| 59 | for (x = 0; gfs2_log_ops[x]; x++) | |
| 60 | if (gfs2_log_ops[x]->lo_after_commit) | |
| 16ca9412 | 61 | gfs2_log_ops[x]->lo_after_commit(sdp, tr); |
| b3b94faa DT |
62 | } |
| 63 | ||
| 64 | static inline void lops_before_scan(struct gfs2_jdesc *jd, | |
| 55167622 | 65 | struct gfs2_log_header_host *head, |
| b3b94faa DT |
66 | unsigned int pass) |
| 67 | { | |
| 68 | int x; | |
| 69 | for (x = 0; gfs2_log_ops[x]; x++) | |
| 70 | if (gfs2_log_ops[x]->lo_before_scan) | |
| 71 | gfs2_log_ops[x]->lo_before_scan(jd, head, pass); | |
| 72 | } | |
| 73 | ||
| 7c70b896 | 74 | static inline int lops_scan_elements(struct gfs2_jdesc *jd, u32 start, |
| b3b94faa DT |
75 | struct gfs2_log_descriptor *ld, |
| 76 | __be64 *ptr, | |
| 77 | unsigned int pass) | |
| 78 | { | |
| 79 | int x, error; | |
| 80 | for (x = 0; gfs2_log_ops[x]; x++) | |
| 81 | if (gfs2_log_ops[x]->lo_scan_elements) { | |
| 82 | error = gfs2_log_ops[x]->lo_scan_elements(jd, start, | |
| 83 | ld, ptr, pass); | |
| 84 | if (error) | |
| 85 | return error; | |
| 86 | } | |
| 87 | ||
| 88 | return 0; | |
| 89 | } | |
| 90 | ||
| 91 | static inline void lops_after_scan(struct gfs2_jdesc *jd, int error, | |
| 92 | unsigned int pass) | |
| 93 | { | |
| 94 | int x; | |
| 95 | for (x = 0; gfs2_log_ops[x]; x++) | |
| 96 | if (gfs2_log_ops[x]->lo_before_scan) | |
| 97 | gfs2_log_ops[x]->lo_after_scan(jd, error, pass); | |
| 98 | } | |
| 99 | ||
| 100 | #endif /* __LOPS_DOT_H__ */ | |
| 101 |