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| author | Daniel Verkamp <dverkamp@chromium.org> | 2019-11-12 14:02:16 -0800 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2019-11-27 21:22:37 +0000 |
| commit | 6eadef77a349127a013f22f58518a6bf7852d4f5 (patch) | |
| tree | 4cd532a90018aa90283c22bcd28a9ef9a939ac4d /sys_util/src/lib.rs | |
| parent | 3064a7164a504e1e096e6021683d6cc2282147c4 (diff) | |
| download | crosvm-6eadef77a349127a013f22f58518a6bf7852d4f5.tar crosvm-6eadef77a349127a013f22f58518a6bf7852d4f5.tar.gz crosvm-6eadef77a349127a013f22f58518a6bf7852d4f5.tar.bz2 crosvm-6eadef77a349127a013f22f58518a6bf7852d4f5.tar.lz crosvm-6eadef77a349127a013f22f58518a6bf7852d4f5.tar.xz crosvm-6eadef77a349127a013f22f58518a6bf7852d4f5.tar.zst crosvm-6eadef77a349127a013f22f58518a6bf7852d4f5.zip | |
sys_util: add WriteZeroesAt trait
Add a variant of WriteZeroes that allows the caller to specify the offset explicitly instead of using the file's cursor. This gets rid of one of the last bits of shared state between disk file users, which will help in implementing multi-queue support. Additionally, modify the WriteZeroes trait to use a generic implementation based on WriteZeroesAt + Seek when possible. BUG=chromium:858815 TEST=Boot Termina in crosvm Change-Id: If710159771aeeb55f4f7746dd4354b6c042144e8 Signed-off-by: Daniel Verkamp <dverkamp@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/1913519
Diffstat (limited to 'sys_util/src/lib.rs')
| -rw-r--r-- | sys_util/src/lib.rs | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sys_util/src/lib.rs b/sys_util/src/lib.rs index 331dbac..31b1662 100644 --- a/sys_util/src/lib.rs +++ b/sys_util/src/lib.rs @@ -70,7 +70,7 @@ pub use crate::guest_memory::Error as GuestMemoryError; pub use crate::mmap::Error as MmapError; pub use crate::seek_hole::SeekHole; pub use crate::signalfd::Error as SignalFdError; -pub use crate::write_zeroes::{PunchHole, WriteZeroes}; +pub use crate::write_zeroes::{PunchHole, WriteZeroes, WriteZeroesAt}; use std::ffi::CStr; use std::fs::{remove_file, File}; |