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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 /seccomp | |
| parent | 3064a7164a504e1e096e6021683d6cc2282147c4 (diff) | |
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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 'seccomp')
| -rw-r--r-- | seccomp/arm/block_device.policy | 2 | ||||
| -rw-r--r-- | seccomp/x86_64/block_device.policy | 2 |
2 files changed, 4 insertions, 0 deletions
diff --git a/seccomp/arm/block_device.policy b/seccomp/arm/block_device.policy index 1ec4053..fad0cc0 100644 --- a/seccomp/arm/block_device.policy +++ b/seccomp/arm/block_device.policy @@ -10,7 +10,9 @@ fstat64: 1 fsync: 1 ftruncate64: 1 _llseek: 1 +pread64: 1 preadv: 1 +pwrite64: 1 pwritev: 1 timerfd_create: 1 timerfd_gettime: 1 diff --git a/seccomp/x86_64/block_device.policy b/seccomp/x86_64/block_device.policy index 6bb5c32..c1ddf26 100644 --- a/seccomp/x86_64/block_device.policy +++ b/seccomp/x86_64/block_device.policy @@ -10,7 +10,9 @@ fstat: 1 fsync: 1 ftruncate: 1 lseek: 1 +pread64: 1 preadv: 1 +pwrite64: 1 pwritev: 1 timerfd_create: 1 timerfd_gettime: 1 |