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4a94f052e0
Pass the right blk_opf_t value to bio_alloc() so that ->bi_ops is
initialized correctly and doesn't have to be changed later. Adjust the
call chain to pass that value through to where it is needed (and only
there).
Add a separate blk_opf_t argument to gfs2_chain_bio() instead of copying
the value from the previous bio.
Fixes: 8a157e0a0a ("gfs2: Fix use of bio_chain")
Reported-by: syzbot+f6539d4ce3f775aee0cc@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=f6539d4ce3f775aee0cc
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
91 lines
2.3 KiB
C
91 lines
2.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
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* Copyright (C) 2004-2008 Red Hat, Inc. All rights reserved.
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*/
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#ifndef __LOPS_DOT_H__
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#define __LOPS_DOT_H__
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#include <linux/list.h>
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#include "incore.h"
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extern const struct gfs2_log_operations *gfs2_log_ops[];
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void gfs2_log_incr_head(struct gfs2_sbd *sdp);
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u64 gfs2_log_bmap(struct gfs2_jdesc *jd, unsigned int lbn);
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void gfs2_log_write(struct gfs2_sbd *sdp, struct gfs2_jdesc *jd,
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struct page *page, unsigned size, unsigned offset,
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u64 blkno, blk_opf_t opf);
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void gfs2_log_submit_write(struct bio **biop);
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void gfs2_pin(struct gfs2_sbd *sdp, struct buffer_head *bh);
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int gfs2_find_jhead(struct gfs2_jdesc *jd,
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struct gfs2_log_header_host *head);
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void gfs2_drain_revokes(struct gfs2_sbd *sdp);
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static inline unsigned int buf_limit(struct gfs2_sbd *sdp)
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{
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return sdp->sd_ldptrs;
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}
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static inline unsigned int databuf_limit(struct gfs2_sbd *sdp)
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{
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return sdp->sd_ldptrs / 2;
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}
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static inline void lops_before_commit(struct gfs2_sbd *sdp,
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struct gfs2_trans *tr)
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{
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int x;
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for (x = 0; gfs2_log_ops[x]; x++)
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if (gfs2_log_ops[x]->lo_before_commit)
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gfs2_log_ops[x]->lo_before_commit(sdp, tr);
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}
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static inline void lops_after_commit(struct gfs2_sbd *sdp,
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struct gfs2_trans *tr)
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{
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int x;
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for (x = 0; gfs2_log_ops[x]; x++)
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if (gfs2_log_ops[x]->lo_after_commit)
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gfs2_log_ops[x]->lo_after_commit(sdp, tr);
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}
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static inline void lops_before_scan(struct gfs2_jdesc *jd,
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struct gfs2_log_header_host *head,
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unsigned int pass)
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{
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int x;
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for (x = 0; gfs2_log_ops[x]; x++)
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if (gfs2_log_ops[x]->lo_before_scan)
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gfs2_log_ops[x]->lo_before_scan(jd, head, pass);
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}
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static inline int lops_scan_elements(struct gfs2_jdesc *jd, u32 start,
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struct gfs2_log_descriptor *ld,
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__be64 *ptr,
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unsigned int pass)
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{
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int x, error;
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for (x = 0; gfs2_log_ops[x]; x++)
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if (gfs2_log_ops[x]->lo_scan_elements) {
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error = gfs2_log_ops[x]->lo_scan_elements(jd, start,
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ld, ptr, pass);
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if (error)
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return error;
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}
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return 0;
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}
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static inline void lops_after_scan(struct gfs2_jdesc *jd, int error,
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unsigned int pass)
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{
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int x;
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for (x = 0; gfs2_log_ops[x]; x++)
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if (gfs2_log_ops[x]->lo_before_scan)
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gfs2_log_ops[x]->lo_after_scan(jd, error, pass);
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}
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#endif /* __LOPS_DOT_H__ */
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