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Add comment for fsync

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Alex Auvolat 2022-03-14 11:54:00 +01:00
parent d78bf379fb
commit 0af314b295
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1 changed files with 5 additions and 0 deletions
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5
src/model/block.rs
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@ -902,6 +902,11 @@ impl BlockManagerLocked {
fs::remove_file(to_delete).await?; fs::remove_file(to_delete).await?;
} }
// We want to ensure that when this function returns, data is properly persisted
// to disk. The first step is the sync_all above that does an fsync on the data file.
// Now, we do an fsync on the containing directory, to ensure that the rename
// is persisted properly. See:
// http://thedjbway.b0llix.net/qmail/syncdir.html
let dir = fs::OpenOptions::new() let dir = fs::OpenOptions::new()
.read(true) .read(true)
.mode(0) .mode(0)