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Implement layer merge

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A new command merges multiple snapshot/clone layers into one of them,
so merged layers can be deleted after this procedure
This commit is contained in:
Vitaliy Filippov
2021-07-31 00:23:30 +03:00
parent a02b02eb04
commit acf637950c
15 changed files with 915 additions and 301 deletions
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src/osd_primary.cpp
+2 -2
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@@ -198,7 +198,7 @@ void osd_t::continue_primary_read(osd_op_t *cur_op)
{
// Fast happy-path
cur_op->buf = alloc_read_buffer(op_data->stripes, op_data->pg_data_size, 0);
submit_primary_subops(SUBMIT_READ, op_data->target_ver, pg.cur_set.data(), cur_op);
submit_primary_subops(SUBMIT_RMW_READ, op_data->target_ver, pg.cur_set.data(), cur_op);
op_data->st = 1;
}
else
@@ -215,7 +215,7 @@ void osd_t::continue_primary_read(osd_op_t *cur_op)
op_data->scheme = pg.scheme;
op_data->degraded = 1;
cur_op->buf = alloc_read_buffer(op_data->stripes, pg.pg_size, 0);
submit_primary_subops(SUBMIT_READ, op_data->target_ver, cur_set, cur_op);
submit_primary_subops(SUBMIT_RMW_READ, op_data->target_ver, cur_set, cur_op);
op_data->st = 1;
}
}