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sys::man adding MADV_POPULATE_READ and MAP_POPULATE_WRITE. #2565

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Merged
merged 1 commit into from
Dec 18, 2024
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sys::man adding MADV_POPULATE_READ and MAP_POPULATE_WRITE. #2565

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2 changes: 2 additions & 0 deletions changelog/2565.added.md
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Original file line number Diff line number Diff line change
@@ -0,0 +1,2 @@
Add `sys::mman::MmapAdvise` `MADV_POPULATE_READ`, `MADV_POPULATE_WRITE` for Linux and Android targets

7 changes: 7 additions & 0 deletions src/sys/mman.rs
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Expand Up @@ -328,6 +328,13 @@ libc_enum! {
/// Undo `MADV_WIPEONFORK` when it applied.
#[cfg(linux_android)]
MADV_KEEPONFORK,
/// Pre-load the address range for reading to reduce page-fault latency.
#[cfg(linux_android)]
MADV_POPULATE_READ,
/// Pre-fault the address range for writing to reduce page-fault
/// latency on subsequent writes.
#[cfg(linux_android)]
MADV_POPULATE_WRITE,
}
}

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