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| author | Bhasker Hariharan <bhaskerh@google.com> | 2021-03-03 12:18:04 -0800 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2021-03-03 12:24:21 -0800 |
| commit | 3e69f5d088d121f1d3c4bf44ca637a48f13c4819 (patch) | |
| tree | 153fa7d51f509c8a5cf066a7aea90fd334a08899 /pkg/sentry/fsimpl/overlay/filesystem.go | |
| parent | 80bc67c268dba0126cd258075c06d744399e0f02 (diff) | |
Add checklocks analyzer.
This validates that struct fields if annotated with "// checklocks:mu" where
"mu" is a mutex field in the same struct then access to the field is only
done with "mu" locked.
All types that are guarded by a mutex must be annotated with
// +checklocks:<mutex field name>
For more details please refer to README.md.
PiperOrigin-RevId: 360729328
Diffstat (limited to 'pkg/sentry/fsimpl/overlay/filesystem.go')
| -rw-r--r-- | pkg/sentry/fsimpl/overlay/filesystem.go | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/pkg/sentry/fsimpl/overlay/filesystem.go b/pkg/sentry/fsimpl/overlay/filesystem.go index f7f795b10..917709d75 100644 --- a/pkg/sentry/fsimpl/overlay/filesystem.go +++ b/pkg/sentry/fsimpl/overlay/filesystem.go @@ -85,6 +85,8 @@ func putDentrySlice(ds *[]*dentry) { // but dentry slices are allocated lazily, and it's much easier to say "defer // fs.renameMuRUnlockAndCheckDrop(&ds)" than "defer func() { // fs.renameMuRUnlockAndCheckDrop(ds) }()" to work around this. +// +// +checklocks:fs.renameMu func (fs *filesystem) renameMuRUnlockAndCheckDrop(ctx context.Context, dsp **[]*dentry) { fs.renameMu.RUnlock() if *dsp == nil { @@ -110,6 +112,7 @@ func (fs *filesystem) renameMuRUnlockAndCheckDrop(ctx context.Context, dsp **[]* putDentrySlice(*dsp) } +// +checklocks:fs.renameMu func (fs *filesystem) renameMuUnlockAndCheckDrop(ctx context.Context, ds **[]*dentry) { if *ds == nil { fs.renameMu.Unlock() |