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Implement offline TRIM support

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This commit is contained in:
Vitaliy Filippov
2025-03-14 01:37:16 +03:00
parent 3634f005f1
commit 1d94afbd51
13 changed files with 263 additions and 26 deletions
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src/disk_tool/disk_tool_journal.cpp
+18 -7
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@@ -119,13 +119,21 @@ int disk_tool_t::dump_journal()
return 0;
}
int disk_tool_t::process_journal(std::function<int(void*)> block_fn)
int disk_tool_t::process_journal(std::function<int(void*)> block_fn, bool do_open)
{
dsk.journal_fd = open(dsk.journal_device.c_str(), (options["io"] == "cached" ? 0 : O_DIRECT) | O_RDONLY);
if (dsk.journal_fd < 0)
if (do_open)
{
fprintf(stderr, "Failed to open journal device %s: %s\n", dsk.journal_device.c_str(), strerror(errno));
return 1;
if (dsk.journal_fd >= 0)
{
fprintf(stderr, "Bug: journal device is already opened\n");
return 1;
}
dsk.journal_fd = open(dsk.journal_device.c_str(), (options["io"] == "cached" ? 0 : O_DIRECT) | O_RDONLY);
if (dsk.journal_fd < 0)
{
fprintf(stderr, "Failed to open journal device %s: %s\n", dsk.journal_device.c_str(), strerror(errno));
return 1;
}
}
void *data = memalign_or_die(MEM_ALIGNMENT, dsk.journal_block_size);
journal_pos = 0;
@@ -170,8 +178,11 @@ int disk_tool_t::process_journal(std::function<int(void*)> block_fn)
break;
}
}
close(dsk.journal_fd);
dsk.journal_fd = -1;
if (do_open)
{
close(dsk.journal_fd);
dsk.journal_fd = -1;
}
free(data);
return r;
}