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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 | /* * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. * Copyright (C) 2004-2008 Red Hat, Inc. All rights reserved. * * This copyrighted material is made available to anyone wishing to use, * modify, copy, or redistribute it subject to the terms and conditions * of the GNU General Public License version 2. */ #ifndef __LOPS_DOT_H__ #define __LOPS_DOT_H__ #include <linux/list.h> #include "incore.h" #define BUF_OFFSET \ ((sizeof(struct gfs2_log_descriptor) + sizeof(__be64) - 1) & \ ~(sizeof(__be64) - 1)) #define DATABUF_OFFSET \ ((sizeof(struct gfs2_log_descriptor) + (2 * sizeof(__be64) - 1)) & \ ~(2 * sizeof(__be64) - 1)) extern const struct gfs2_log_operations gfs2_glock_lops; extern const struct gfs2_log_operations gfs2_buf_lops; extern const struct gfs2_log_operations gfs2_revoke_lops; extern const struct gfs2_log_operations gfs2_databuf_lops; extern const struct gfs2_log_operations *gfs2_log_ops[]; extern void gfs2_log_write_page(struct gfs2_sbd *sdp, struct page *page); extern void gfs2_log_flush_bio(struct gfs2_sbd *sdp, int op, int op_flags); extern void gfs2_pin(struct gfs2_sbd *sdp, struct buffer_head *bh); static inline unsigned int buf_limit(struct gfs2_sbd *sdp) { unsigned int limit; limit = (sdp->sd_sb.sb_bsize - BUF_OFFSET) / sizeof(__be64); return limit; } static inline unsigned int databuf_limit(struct gfs2_sbd *sdp) { unsigned int limit; limit = (sdp->sd_sb.sb_bsize - DATABUF_OFFSET) / (2 * sizeof(__be64)); return limit; } static inline void lops_before_commit(struct gfs2_sbd *sdp, struct gfs2_trans *tr) { int x; for (x = 0; gfs2_log_ops[x]; x++) if (gfs2_log_ops[x]->lo_before_commit) gfs2_log_ops[x]->lo_before_commit(sdp, tr); } static inline void lops_after_commit(struct gfs2_sbd *sdp, struct gfs2_trans *tr) { int x; for (x = 0; gfs2_log_ops[x]; x++) if (gfs2_log_ops[x]->lo_after_commit) gfs2_log_ops[x]->lo_after_commit(sdp, tr); } static inline void lops_before_scan(struct gfs2_jdesc *jd, struct gfs2_log_header_host *head, unsigned int pass) { int x; for (x = 0; gfs2_log_ops[x]; x++) if (gfs2_log_ops[x]->lo_before_scan) gfs2_log_ops[x]->lo_before_scan(jd, head, pass); } static inline int lops_scan_elements(struct gfs2_jdesc *jd, unsigned int start, struct gfs2_log_descriptor *ld, __be64 *ptr, unsigned int pass) { int x, error; for (x = 0; gfs2_log_ops[x]; x++) if (gfs2_log_ops[x]->lo_scan_elements) { error = gfs2_log_ops[x]->lo_scan_elements(jd, start, ld, ptr, pass); if (error) return error; } return 0; } static inline void lops_after_scan(struct gfs2_jdesc *jd, int error, unsigned int pass) { int x; for (x = 0; gfs2_log_ops[x]; x++) if (gfs2_log_ops[x]->lo_before_scan) gfs2_log_ops[x]->lo_after_scan(jd, error, pass); } #endif /* __LOPS_DOT_H__ */ |