diff options
| author | Fabricio Voznika <fvoznika@google.com> | 2020-09-01 19:20:37 -0700 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2020-09-01 19:22:12 -0700 |
| commit | 37a217aca4a128d66a6dd4969375ea81bd879ac7 (patch) | |
| tree | 21f60d54ca05029cd2c67d7de78cb987ee76f050 /runsc/fsgofer | |
| parent | 40faeaa180a30906da4822a105c43fcdb996750d (diff) | |
Implement setattr+clunk in 9P
This is to cover the common pattern: open->read/write->close,
where SetAttr needs to be called to update atime/mtime before
the file is closed.
Benchmark results:
BM_OpenReadClose/10240 CPU
setattr+clunk: 63783 ns
VFS2: 68109 ns
VFS1: 72507 ns
Updates #1198
PiperOrigin-RevId: 329628461
Diffstat (limited to 'runsc/fsgofer')
| -rw-r--r-- | runsc/fsgofer/fsgofer.go | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/runsc/fsgofer/fsgofer.go b/runsc/fsgofer/fsgofer.go index b0788bd23..4268d97a1 100644 --- a/runsc/fsgofer/fsgofer.go +++ b/runsc/fsgofer/fsgofer.go @@ -181,6 +181,8 @@ func (a *attachPoint) makeQID(stat unix.Stat_t) p9.QID { // The few exceptions where it cannot be done are: utimensat on symlinks, and // Connect() for the socket address. type localFile struct { + p9.DisallowClientCalls + // attachPoint is the attachPoint that serves this localFile. attachPoint *attachPoint |