diff options
| author | Jamie Liu <jamieliu@google.com> | 2020-11-18 18:08:02 -0800 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2020-11-18 18:10:02 -0800 |
| commit | 3a16b829c511757701d4370b8b38d162acb8ba9c (patch) | |
| tree | 7f220173756bee034d77473ec3e5344b981fe840 /pkg/sentry/fsimpl/tmpfs/regular_file.go | |
| parent | 7158095d687dd9ede3a3fc8da1f4dfbb2ebc176e (diff) | |
Port filesystem metrics to VFS2.
PiperOrigin-RevId: 343196927
Diffstat (limited to 'pkg/sentry/fsimpl/tmpfs/regular_file.go')
| -rw-r--r-- | pkg/sentry/fsimpl/tmpfs/regular_file.go | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/pkg/sentry/fsimpl/tmpfs/regular_file.go b/pkg/sentry/fsimpl/tmpfs/regular_file.go index f8e0cffb0..6255a7c84 100644 --- a/pkg/sentry/fsimpl/tmpfs/regular_file.go +++ b/pkg/sentry/fsimpl/tmpfs/regular_file.go @@ -25,6 +25,7 @@ import ( "gvisor.dev/gvisor/pkg/safemem" "gvisor.dev/gvisor/pkg/sentry/fs" "gvisor.dev/gvisor/pkg/sentry/fs/fsutil" + "gvisor.dev/gvisor/pkg/sentry/fsmetric" "gvisor.dev/gvisor/pkg/sentry/kernel/auth" "gvisor.dev/gvisor/pkg/sentry/memmap" "gvisor.dev/gvisor/pkg/sentry/pgalloc" @@ -359,6 +360,10 @@ func (fd *regularFileFD) Allocate(ctx context.Context, mode, offset, length uint // PRead implements vfs.FileDescriptionImpl.PRead. func (fd *regularFileFD) PRead(ctx context.Context, dst usermem.IOSequence, offset int64, opts vfs.ReadOptions) (int64, error) { + start := fsmetric.StartReadWait() + defer fsmetric.FinishReadWait(fsmetric.TmpfsReadWait, start) + fsmetric.TmpfsReads.Increment() + if offset < 0 { return 0, syserror.EINVAL } |