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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_meta.cpp
+28 -11
View File
@@ -7,18 +7,26 @@
#include "json_util.h"
int disk_tool_t::process_meta(std::function<void(blockstore_meta_header_v2_t *)> hdr_fn,
std::function<void(uint64_t, clean_disk_entry*, uint8_t*)> record_fn)
std::function<void(uint64_t, clean_disk_entry*, uint8_t*)> record_fn, bool do_open)
{
if (dsk.meta_block_size % DIRECT_IO_ALIGNMENT)
{
fprintf(stderr, "Invalid metadata block size: is not a multiple of %d\n", DIRECT_IO_ALIGNMENT);
return 1;
}
dsk.meta_fd = open(dsk.meta_device.c_str(), (options["io"] == "cached" ? 0 : O_DIRECT) | O_RDONLY);
if (dsk.meta_fd < 0)
if (do_open)
{
fprintf(stderr, "Failed to open metadata device %s: %s\n", dsk.meta_device.c_str(), strerror(errno));
return 1;
if (dsk.meta_fd >= 0)
{
fprintf(stderr, "Bug: Metadata device is already opened\n");
return 1;
}
dsk.meta_fd = open(dsk.meta_device.c_str(), (options["io"] == "cached" ? 0 : O_DIRECT) | O_RDONLY);
if (dsk.meta_fd < 0)
{
fprintf(stderr, "Failed to open metadata device %s: %s\n", dsk.meta_device.c_str(), strerror(errno));
return 1;
}
}
int buf_size = 1024*1024;
if (buf_size % dsk.meta_block_size)
@@ -47,8 +55,11 @@ int disk_tool_t::process_meta(std::function<void(blockstore_meta_header_v2_t *)>
{
fprintf(stderr, "I don't know checksum format %u, the only supported format is crc32c = %u.\n", hdr->data_csum_type, BLOCKSTORE_CSUM_CRC32C);
free(data);
close(dsk.meta_fd);
dsk.meta_fd = -1;
if (do_open)
{
close(dsk.meta_fd);
dsk.meta_fd = -1;
}
return 1;
}
}
@@ -57,8 +68,11 @@ int disk_tool_t::process_meta(std::function<void(blockstore_meta_header_v2_t *)>
// Unsupported version
fprintf(stderr, "Metadata format is too new for me (stored version is %ju, max supported %u).\n", hdr->version, BLOCKSTORE_META_FORMAT_V2);
free(data);
close(dsk.meta_fd);
dsk.meta_fd = -1;
if (do_open)
{
close(dsk.meta_fd);
dsk.meta_fd = -1;
}
return 1;
}
if (hdr->meta_block_size != dsk.meta_block_size)
@@ -145,8 +159,11 @@ int disk_tool_t::process_meta(std::function<void(blockstore_meta_header_v2_t *)>
}
}
free(data);
close(dsk.meta_fd);
dsk.meta_fd = -1;
if (do_open)
{
close(dsk.meta_fd);
dsk.meta_fd = -1;
}
return 0;
}