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In wapbl_replay_write just iterate over the hash table and not the

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transactions. The initial prescan has already sorted out what blocks are
in the journal and removed any revoced blocks, so the hash table is
authorative.
This commit is contained in:
joerg 2008-11-17 22:08:09 +00:00
parent 5a45b84ca9
commit c42112239b
1 changed files with 20 additions and 69 deletions
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89
sys/kern/vfs_wapbl.c
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@ -1,4 +1,4 @@
/* $NetBSD: vfs_wapbl.c,v 1.8 2008/11/17 19:36:11 joerg Exp $ */
/* $NetBSD: vfs_wapbl.c,v 1.9 2008/11/17 22:08:09 joerg Exp $ */
/*-
* Copyright (c) 2003,2008 The NetBSD Foundation, Inc.
@ -36,7 +36,7 @@
#define WAPBL_INTERNAL
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: vfs_wapbl.c,v 1.8 2008/11/17 19:36:11 joerg Exp $");
__KERNEL_RCSID(0, "$NetBSD: vfs_wapbl.c,v 1.9 2008/11/17 22:08:09 joerg Exp $");
#include <sys/param.h>
@ -2711,81 +2711,32 @@ wapbl_replay_verify(struct wapbl_replay *wr, struct vnode *fsdevvp)
int
wapbl_replay_write(struct wapbl_replay *wr, struct vnode *fsdevvp)
{
off_t off;
struct wapbl_wc_header *wch = &wr->wr_wc_header;
int logblklen = 1<<wch->wc_log_dev_bshift;
int fsblklen = 1<<wch->wc_fs_dev_bshift;
void *scratch1 = wapbl_malloc(MAXBSIZE);
struct wapbl_blk *wb;
size_t i;
off_t off;
void *scratch;
int error = 0;
int fsblklen = 1 << wch->wc_fs_dev_bshift;
KDASSERT(wapbl_replay_isopen(wr));
/*
* This parses the journal for replay, although it could
* just as easily walk the hashtable instead.
*/
scratch = wapbl_malloc(MAXBSIZE);
off = wch->wc_tail;
while (off != wch->wc_head) {
struct wapbl_wc_null *wcn;
#ifdef DEBUG
off_t saveoff = off;
#endif
error = wapbl_circ_read(wr, wr->wr_scratch, logblklen, &off);
if (error)
goto out;
wcn = (struct wapbl_wc_null *)wr->wr_scratch;
switch (wcn->wc_type) {
case WAPBL_WC_BLOCKS:
{
struct wapbl_wc_blocklist *wc =
(struct wapbl_wc_blocklist *)wr->wr_scratch;
int i;
for (i = 0; i < wc->wc_blkcount; i++) {
int j, n;
/*
* Check each physical block against
* the hashtable independently
*/
n = wc->wc_blocks[i].wc_dlen >>
wch->wc_fs_dev_bshift;
for (j = 0; j < n; j++) {
struct wapbl_blk *wb =
wapbl_blkhash_get(wr,
wc->wc_blocks[i].wc_daddr + j);
if (wb && (wb->wb_off == off)) {
error = wapbl_circ_read(
wr, scratch1,
fsblklen, &off);
if (error)
goto out;
error =
wapbl_write(scratch1,
fsblklen, fsdevvp,
wb->wb_blk);
if (error)
goto out;
} else {
wapbl_circ_advance(wr,
fsblklen, &off);
}
}
}
}
break;
case WAPBL_WC_REVOCATIONS:
case WAPBL_WC_INODES:
break;
default:
KASSERT(0);
for (i = 0; i < wr->wr_blkhashmask; ++i) {
LIST_FOREACH(wb, &wr->wr_blkhash[i], wb_hash) {
off = wb->wb_off;
error = wapbl_circ_read(wr, scratch, fsblklen, &off);
if (error)
break;
error = wapbl_write(scratch, fsblklen, fsdevvp,
wb->wb_blk);
if (error)
break;
}
#ifdef DEBUG
wapbl_circ_advance(wr, wcn->wc_len, &saveoff);
KASSERT(off == saveoff);
#endif
}
out:
wapbl_free(scratch1);
wapbl_free(scratch);
return error;
}