/*
* Copy dump using mmap (copy HSA first)
*/
static int copy_dump(const char *in, const char *out, unsigned long offset)
{
struct copy_table_entry table[COPY_TABLE_ENTRY_COUNT];
char busy_str[] = "zfcpdump busy";
int fdout, fdin, i, rc = -1;
fdin = open(in, O_RDONLY);
if (fdin < 0) {
PRINT_ERR("Open %s failed\n", in);
return -1;
}
g.vmcore_size = lseek(fdin, (off_t) 0, SEEK_END);
lseek(fdin, 0L, SEEK_SET);
if (g.vmcore_size > dump_sb.dump_size) {
PRINT_ERR("Disk too small: dump=%lldMB (diskspace=%lldMB)\n",
TO_MIB(g.vmcore_size), TO_MIB(dump_sb.dump_size));
goto out_close_fdin;
}
fdout = open(out, O_WRONLY);
if (fdout < 0) {
PRINT_ERR("Open %s failed\n", out);
goto out_close_fdin;
}
/* Overwrite old header */
if (lseek(fdout, offset, SEEK_SET) < 0)
goto out_close_fdin;
if (write(fdout, busy_str, sizeof(busy_str)) == -1)
goto out_close_fdin;
if (csum_update(fdout))
goto out_close_fdin;
if (copy_table_init(fdin, table))
goto out_close_fdin;
show_progress(0);
for (i = 0; i < COPY_TABLE_ENTRY_COUNT; i++) {
if (copy_table_entry_write(fdin, fdout, &table[i], offset))
goto out_close_fdout;
if (i == 0) /* 0 is the HSA */
release_hsa();
}
rc = 0;
out_close_fdout:
if (csum_update(fdout))
rc = -1;
fsync(fdout);
close(fdout);
out_close_fdin:
close(fdin);
return rc;
}
static void nkfs_btree_node_calc_sum(struct nkfs_btree_node *node,
struct csum *sum, int write)
{
struct csum_ctx ctx;
struct nkfs_btree_header_page *header;
int i;
header = page_address(node->header);
KLOG(KL_DBG3, "node %llu leaf %d nr_keys %d sig1 %x sig2 %x",
node->block, header->leaf, header->nr_keys,
header->sig1, header->sig2);
csum_reset(&ctx);
KLOG_BUF_SUM(KL_DBG3, page_address(node->header),
offsetof(struct nkfs_btree_header_page, sum));
csum_update(&ctx, page_address(node->header),
offsetof(struct nkfs_btree_header_page, sum));
for (i = 0; i < ARRAY_SIZE(node->keys); i++) {
csum_update(&ctx, page_address(node->keys[i]), PAGE_SIZE);
KLOG_BUF_SUM(KL_DBG3, page_address(node->keys[i]), PAGE_SIZE);
}
for (i = 0; i < ARRAY_SIZE(node->childs); i++) {
csum_update(&ctx, page_address(node->childs[i]), PAGE_SIZE);
KLOG_BUF_SUM(KL_DBG3, page_address(node->childs[i]), PAGE_SIZE);
}
for (i = 0; i < ARRAY_SIZE(node->values); i++) {
csum_update(&ctx, page_address(node->values[i]), PAGE_SIZE);
KLOG_BUF_SUM(KL_DBG3, page_address(node->values[i]), PAGE_SIZE);
}
csum_digest(&ctx, sum);
KLOG(KL_DBG3, "node block %llu sum %llx write %d nr_keys %d leaf %d",
node->block, csum_u64(sum), write,
node->nr_keys, node->leaf);
}
