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authorDean Deng <deandeng@google.com>2020-06-19 11:48:24 -0700
committergVisor bot <gvisor-bot@google.com>2020-06-19 11:50:09 -0700
commit7db196c4dbb33562dbfaa28a9476c590f356b2b5 (patch)
tree43f701b5d5bceecfc8499e7a82c8c210b27a82d1 /pkg/abi/linux/fadvise.go
parentd962f9f3842c5c352bc61411cf27e38ba2219317 (diff)
Port fadvise64 to vfs2.
Like vfs1, we have a trivial implementation that ignores all valid advice. Updates #2923. PiperOrigin-RevId: 317349505
Diffstat (limited to 'pkg/abi/linux/fadvise.go')
-rw-r--r--pkg/abi/linux/fadvise.go24
1 files changed, 24 insertions, 0 deletions
diff --git a/pkg/abi/linux/fadvise.go b/pkg/abi/linux/fadvise.go
new file mode 100644
index 000000000..b06ff9964
--- /dev/null
+++ b/pkg/abi/linux/fadvise.go
@@ -0,0 +1,24 @@
+// Copyright 2020 The gVisor Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package linux
+
+const (
+ POSIX_FADV_NORMAL = 0
+ POSIX_FADV_RANDOM = 1
+ POSIX_FADV_SEQUENTIAL = 2
+ POSIX_FADV_WILLNEED = 3
+ POSIX_FADV_DONTNEED = 4
+ POSIX_FADV_NOREUSE = 5
+)