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Diffstat (limited to 'pkg/sentry/fsimpl/proc/meminfo.go')
-rw-r--r--pkg/sentry/fsimpl/proc/meminfo.go79
1 files changed, 0 insertions, 79 deletions
diff --git a/pkg/sentry/fsimpl/proc/meminfo.go b/pkg/sentry/fsimpl/proc/meminfo.go
deleted file mode 100644
index cbdd4f3fc..000000000
--- a/pkg/sentry/fsimpl/proc/meminfo.go
+++ /dev/null
@@ -1,79 +0,0 @@
-// Copyright 2019 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 proc
-
-import (
- "bytes"
- "fmt"
-
- "gvisor.dev/gvisor/pkg/sentry/context"
- "gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs"
- "gvisor.dev/gvisor/pkg/sentry/kernel"
- "gvisor.dev/gvisor/pkg/sentry/usage"
- "gvisor.dev/gvisor/pkg/sentry/usermem"
-)
-
-// meminfoData implements vfs.DynamicBytesSource for /proc/meminfo.
-//
-// +stateify savable
-type meminfoData struct {
- kernfs.DynamicBytesFile
-
- // k is the owning Kernel.
- k *kernel.Kernel
-}
-
-var _ dynamicInode = (*meminfoData)(nil)
-
-// Generate implements vfs.DynamicBytesSource.Generate.
-func (d *meminfoData) Generate(ctx context.Context, buf *bytes.Buffer) error {
- mf := d.k.MemoryFile()
- mf.UpdateUsage()
- snapshot, totalUsage := usage.MemoryAccounting.Copy()
- totalSize := usage.TotalMemory(mf.TotalSize(), totalUsage)
- anon := snapshot.Anonymous + snapshot.Tmpfs
- file := snapshot.PageCache + snapshot.Mapped
- // We don't actually have active/inactive LRUs, so just make up numbers.
- activeFile := (file / 2) &^ (usermem.PageSize - 1)
- inactiveFile := file - activeFile
-
- fmt.Fprintf(buf, "MemTotal: %8d kB\n", totalSize/1024)
- memFree := (totalSize - totalUsage) / 1024
- // We use MemFree as MemAvailable because we don't swap.
- // TODO(rahat): When reclaim is implemented the value of MemAvailable
- // should change.
- fmt.Fprintf(buf, "MemFree: %8d kB\n", memFree)
- fmt.Fprintf(buf, "MemAvailable: %8d kB\n", memFree)
- fmt.Fprintf(buf, "Buffers: 0 kB\n") // memory usage by block devices
- fmt.Fprintf(buf, "Cached: %8d kB\n", (file+snapshot.Tmpfs)/1024)
- // Emulate a system with no swap, which disables inactivation of anon pages.
- fmt.Fprintf(buf, "SwapCache: 0 kB\n")
- fmt.Fprintf(buf, "Active: %8d kB\n", (anon+activeFile)/1024)
- fmt.Fprintf(buf, "Inactive: %8d kB\n", inactiveFile/1024)
- fmt.Fprintf(buf, "Active(anon): %8d kB\n", anon/1024)
- fmt.Fprintf(buf, "Inactive(anon): 0 kB\n")
- fmt.Fprintf(buf, "Active(file): %8d kB\n", activeFile/1024)
- fmt.Fprintf(buf, "Inactive(file): %8d kB\n", inactiveFile/1024)
- fmt.Fprintf(buf, "Unevictable: 0 kB\n") // TODO(b/31823263)
- fmt.Fprintf(buf, "Mlocked: 0 kB\n") // TODO(b/31823263)
- fmt.Fprintf(buf, "SwapTotal: 0 kB\n")
- fmt.Fprintf(buf, "SwapFree: 0 kB\n")
- fmt.Fprintf(buf, "Dirty: 0 kB\n")
- fmt.Fprintf(buf, "Writeback: 0 kB\n")
- fmt.Fprintf(buf, "AnonPages: %8d kB\n", anon/1024)
- fmt.Fprintf(buf, "Mapped: %8d kB\n", file/1024) // doesn't count mapped tmpfs, which we don't know
- fmt.Fprintf(buf, "Shmem: %8d kB\n", snapshot.Tmpfs/1024)
- return nil
-}