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Fix partition zeroing during prepare

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Previously it zeroed area beginning with 0 instead of actual metadata offset
which was leading to non-zeroed metadata when the disk is very small
This commit is contained in:
Vitaliy Filippov
2024-11-08 00:14:37 +03:00
parent edd9051f81
commit ebf24bac9a
1 changed files with 9 additions and 2 deletions
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src/disk_tool/disk_tool_prepare.cpp
+9 -2
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@@ -108,6 +108,10 @@ int disk_tool_t::prepare_one(std::map<std::string, std::string> options, int is_
try
{
dsk.parse_config(options);
// Set all offsets to 4096 to calculate metadata size with excess
dsk.journal_offset = 4096;
dsk.meta_offset = 4096;
dsk.data_offset = 4096;
dsk.data_io = dsk.meta_io = dsk.journal_io = (options["io"] == "cached" ? "cached" : "direct");
dsk.open_data();
dsk.open_meta();
@@ -171,8 +175,8 @@ int disk_tool_t::prepare_one(std::map<std::string, std::string> options, int is_
}
sb["osd_num"] = osd_num;
// Zero out metadata and journal
if (write_zero(dsk.meta_fd, dsk.meta_offset, dsk.meta_len) != 0 ||
write_zero(dsk.journal_fd, dsk.journal_offset, dsk.journal_len) != 0)
if (write_zero(dsk.meta_fd, sb["meta_offset"].uint64_value(), dsk.meta_len) != 0 ||
write_zero(dsk.journal_fd, sb["journal_offset"].uint64_value(), dsk.journal_len) != 0)
{
fprintf(stderr, "Failed to zero out metadata or journal: %s\n", strerror(errno));
dsk.close_all();
@@ -498,6 +502,9 @@ int disk_tool_t::get_meta_partition(std::vector<vitastor_dev_info_t> & ssds, std
{
blockstore_disk_t dsk;
dsk.parse_config(options);
dsk.journal_offset = 4096;
dsk.meta_offset = 4096;
dsk.data_offset = 4096;
dsk.data_io = dsk.meta_io = dsk.journal_io = "cached";
dsk.open_data();
dsk.open_meta();