1/* SPDX-License-Identifier: GPL-2.0-only */ 2/* 3 * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. 4 * Copyright (C) 2004-2008 Red Hat, Inc. All rights reserved. 5 */ 6 7#ifndef __LOPS_DOT_H__ 8#define __LOPS_DOT_H__ 9 10#include <linux/list.h> 11#include "incore.h" 12 13extern const struct gfs2_log_operations *gfs2_log_ops[]; 14 15void gfs2_log_incr_head(struct gfs2_sbd *sdp); 16u64 gfs2_log_bmap(struct gfs2_jdesc *jd, unsigned int lbn); 17void gfs2_log_write(struct gfs2_sbd *sdp, struct gfs2_jdesc *jd, 18 struct page *page, unsigned size, unsigned offset, 19 u64 blkno); 20void gfs2_log_submit_bio(struct bio **biop, blk_opf_t opf); 21void gfs2_pin(struct gfs2_sbd *sdp, struct buffer_head *bh); 22int gfs2_find_jhead(struct gfs2_jdesc *jd, 23 struct gfs2_log_header_host *head, bool keep_cache); 24void gfs2_drain_revokes(struct gfs2_sbd *sdp); 25 26static inline unsigned int buf_limit(struct gfs2_sbd *sdp) 27{ 28 return sdp->sd_ldptrs; 29} 30 31static inline unsigned int databuf_limit(struct gfs2_sbd *sdp) 32{ 33 return sdp->sd_ldptrs / 2; 34} 35 36static inline void lops_before_commit(struct gfs2_sbd *sdp, 37 struct gfs2_trans *tr) 38{ 39 int x; 40 for (x = 0; gfs2_log_ops[x]; x++) 41 if (gfs2_log_ops[x]->lo_before_commit) 42 gfs2_log_ops[x]->lo_before_commit(sdp, tr); 43} 44 45static inline void lops_after_commit(struct gfs2_sbd *sdp, 46 struct gfs2_trans *tr) 47{ 48 int x; 49 for (x = 0; gfs2_log_ops[x]; x++) 50 if (gfs2_log_ops[x]->lo_after_commit) 51 gfs2_log_ops[x]->lo_after_commit(sdp, tr); 52} 53 54static inline void lops_before_scan(struct gfs2_jdesc *jd, 55 struct gfs2_log_header_host *head, 56 unsigned int pass) 57{ 58 int x; 59 for (x = 0; gfs2_log_ops[x]; x++) 60 if (gfs2_log_ops[x]->lo_before_scan) 61 gfs2_log_ops[x]->lo_before_scan(jd, head, pass); 62} 63 64static inline int lops_scan_elements(struct gfs2_jdesc *jd, u32 start, 65 struct gfs2_log_descriptor *ld, 66 __be64 *ptr, 67 unsigned int pass) 68{ 69 int x, error; 70 for (x = 0; gfs2_log_ops[x]; x++) 71 if (gfs2_log_ops[x]->lo_scan_elements) { 72 error = gfs2_log_ops[x]->lo_scan_elements(jd, start, 73 ld, ptr, pass); 74 if (error) 75 return error; 76 } 77 78 return 0; 79} 80 81static inline void lops_after_scan(struct gfs2_jdesc *jd, int error, 82 unsigned int pass) 83{ 84 int x; 85 for (x = 0; gfs2_log_ops[x]; x++) 86 if (gfs2_log_ops[x]->lo_before_scan) 87 gfs2_log_ops[x]->lo_after_scan(jd, error, pass); 88} 89 90#endif /* __LOPS_DOT_H__ */ 91 92