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fixup 'restructure match block to make the special case clear'

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Christian Schwarz
2024-01-04 12:36:35 +00:00
parent 0713f367d4
commit 8e04de6ef9
1 changed files with 6 additions and 7 deletions
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13
pageserver/src/walingest.rs
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@@ -747,19 +747,18 @@ impl WalIngest {
(None, None) => {
// Nothing to do
}
(Some(x), Some(y)) if x == y => {
(Some((new_heap_blkno, new_vm_blk)), Some((old_heap_blkno, old_vm_blk)))
if new_vm_blk == old_vm_blk =>
{
// An UPDATE record that needs to clear the bits for both old and the
// new page, both of which reside on the same VM page.
//
// Save some space by only putting one wal record.
let (heap_blk, vm_blk) = x; // could be x or y, doesn't matter
self.put_rel_wal_record(
modification,
vm_rel,
vm_blk,
new_vm_blk, // could also be old_vm_blk, they're the same
NeonWalRecord::ClearVisibilityMapFlags {
new_heap_blkno: Some(heap_blk),
old_heap_blkno: Some(heap_blk),
new_heap_blkno: Some(new_heap_blkno),
old_heap_blkno: Some(old_heap_blkno),
flags,
},
ctx,