diff options
| author | David Teigland <teigland@redhat.com> | 2019-11-04 11:32:23 -0600 |
|---|---|---|
| committer | David Teigland <teigland@redhat.com> | 2019-11-14 12:32:27 -0600 |
| commit | 0a670ec20f85d5bc04f664c3826525c95b727814 (patch) | |
| tree | 352a7958bb92adc60269be530ac63ee440c7f908 | |
| parent | 4bddb4cabe79fc317ae993a3633271b4a86deaca (diff) | |
| download | lvm2-0a670ec20f85d5bc04f664c3826525c95b727814.tar.gz | |
pvck: dump show most recent metadata
| -rw-r--r-- | tools/pvck.c | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/tools/pvck.c b/tools/pvck.c index 483c49f66..6e9b10d8c 100644 --- a/tools/pvck.c +++ b/tools/pvck.c @@ -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; |