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authorAdin Scannell <ascannell@google.com>2019-05-21 15:17:05 -0700
committerShentubot <shentubot@google.com>2019-05-21 15:18:12 -0700
commit9cdae51feca5cee9faa198161b92a0aeece52d6c (patch)
tree9a2a22b2e2c99f70505d9d8700bdc8dcac06e11d /pkg/sentry/fs/host/file.go
parentadeb99709bda40e62363b229464b8ae3a90e237b (diff)
Add basic plumbing for splice and stub implementation.
This does not actually implement an efficient splice or sendfile. Rather, it adds a generic plumbing to the file internals so that this can be added. All file implementations use the stub fileutil.NoSplice implementation, which causes sendfile and splice to fall back to an internal copy. A basic splice system call interface is added, along with a test. PiperOrigin-RevId: 249335960 Change-Id: Ic5568be2af0a505c19e7aec66d5af2480ab0939b
Diffstat (limited to 'pkg/sentry/fs/host/file.go')
-rw-r--r--pkg/sentry/fs/host/file.go1
1 files changed, 1 insertions, 0 deletions
diff --git a/pkg/sentry/fs/host/file.go b/pkg/sentry/fs/host/file.go
index 82e2ae3b9..ad0a3ec85 100644
--- a/pkg/sentry/fs/host/file.go
+++ b/pkg/sentry/fs/host/file.go
@@ -37,6 +37,7 @@ import (
// +stateify savable
type fileOperations struct {
fsutil.FileNoIoctl `state:"nosave"`
+ fsutil.FileNoSplice `state:"nosplice"`
fsutil.FileNoopRelease `state:"nosave"`
fsutil.FileUseInodeUnstableAttr `state:"nosave"`