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| author | Daniel Verkamp <dverkamp@chromium.org> | 2019-09-18 11:22:07 -0700 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2019-09-25 00:06:27 +0000 |
| commit | 71a6f0a790eb3f9a6fccbaf08aa915396a9d6749 (patch) | |
| tree | e9e9c632f671860534afc1efa932acd41f006d05 /devices/src/virtio/block.rs | |
| parent | b2d4e11579b23e84ef62290600337084a64770c4 (diff) | |
| download | crosvm-71a6f0a790eb3f9a6fccbaf08aa915396a9d6749.tar crosvm-71a6f0a790eb3f9a6fccbaf08aa915396a9d6749.tar.gz crosvm-71a6f0a790eb3f9a6fccbaf08aa915396a9d6749.tar.bz2 crosvm-71a6f0a790eb3f9a6fccbaf08aa915396a9d6749.tar.lz crosvm-71a6f0a790eb3f9a6fccbaf08aa915396a9d6749.tar.xz crosvm-71a6f0a790eb3f9a6fccbaf08aa915396a9d6749.tar.zst crosvm-71a6f0a790eb3f9a6fccbaf08aa915396a9d6749.zip | |
sys_util: add write_zeroes_all() function
In the same spirit as write_all() for the standard io::Write::write() function, add a write_zeroes_all() function with a default implementation that calls write_zeroes() in a loop until the requested length is met. This will allow write_zeroes implementations that don't necessarily fulfill the entire requested length. BUG=None TEST=cargo test -p sys_util write_zeroes Change-Id: I0fc3a4b3fe8904946e253ab8a2687555b12657be Signed-off-by: Daniel Verkamp <dverkamp@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1811466 Reviewed-by: Zach Reizner <zachr@chromium.org> Reviewed-by: Cody Schuffelen <schuffelen@google.com> Tested-by: kokoro <noreply+kokoro@google.com>
Diffstat (limited to 'devices/src/virtio/block.rs')
| -rw-r--r-- | devices/src/virtio/block.rs | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/devices/src/virtio/block.rs b/devices/src/virtio/block.rs index 5939652..73fd416 100644 --- a/devices/src/virtio/block.rs +++ b/devices/src/virtio/block.rs @@ -673,7 +673,7 @@ impl Block { } else { disk.seek(SeekFrom::Start(offset)) .map_err(|e| ExecuteError::Seek { ioerr: e, sector })?; - disk.write_zeroes(length as usize).map_err(|e| { + disk.write_zeroes_all(length as usize).map_err(|e| { ExecuteError::DiscardWriteZeroes { ioerr: Some(e), sector, |