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pvck: dump show most recent metadata

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This commit is contained in:
David Teigland 2019-11-04 11:32:23 -06:00
parent 9cf08836ef
commit d051e899a5
1 changed files with 23 additions and 1 deletions
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24
tools/pvck.c
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@ -255,14 +255,18 @@ static int _dump_all_text(struct cmd_context *cmd, struct settings *set, const c
char vgname[NAME_LEN+1];
char id_str[ID_STR_SIZE];
char id_first[ID_STR_SIZE];
char latest_vgname[NAME_LEN+1];
char latest_id_str[ID_STR_SIZE];
char *text_buf;
char *p;
uint32_t buf_off; /* offset with buf which begins with mda_header */
uint32_t buf_off_first = 0;
uint32_t seqno;
uint32_t latest_seqno;
uint32_t crc;
uint64_t text_size;
uint64_t meta_size;
uint64_t latest_offset;
int metadata_offset_found = 0;
int multiple_vgs = 0;
int bad_end;
@ -277,6 +281,11 @@ static int _dump_all_text(struct cmd_context *cmd, struct settings *set, const c
}
}
memset(latest_vgname, 0, sizeof(latest_vgname));
memset(latest_id_str, 0, sizeof(latest_id_str));
latest_offset = 0;
latest_seqno = 0;
/*
* If metadata has not wrapped, and the metadata area beginning
* has not been damaged, the text area will begin with vgname {.
@ -419,6 +428,13 @@ static int _dump_all_text(struct cmd_context *cmd, struct settings *set, const c
(unsigned long long)text_size,
crc, vgname, seqno, id_str);
if (!latest_seqno || (seqno > latest_seqno)) {
latest_seqno = seqno;
latest_offset = mda_offset + buf_off;
memcpy(latest_vgname, vgname, NAME_LEN);
memcpy(latest_id_str, id_str, ID_STR_SIZE);
}
/*
* save the location of the first metadata we've found so
* we know where to stop after wrapping buf.
@ -442,7 +458,7 @@ static int _dump_all_text(struct cmd_context *cmd, struct settings *set, const c
_copy_line(str1, line, &len);
log_print("%s", line);
}
if ((str2 = strstr(str1, "creation_time = "))) {
if (str1 && (str2 = strstr(str1, "creation_time = "))) {
memset(line, 0, sizeof(line));
_copy_line(str2, line, &len);
log_print("%s\n", line);
@ -469,6 +485,12 @@ static int _dump_all_text(struct cmd_context *cmd, struct settings *set, const c
if (multiple_vgs)
log_warn("WARNING: metadata from multiple VGs was found.");
if (!set->metadata_offset_set)
log_print("Most recent metadata found at %llu seqno %u for vg %s id %s",
(unsigned long long)latest_offset, latest_seqno,
latest_vgname, latest_id_str);
if (fp) {
if (fflush(fp))
stack;