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| author | gVisor bot <gvisor-bot@google.com> | 2020-01-22 20:41:58 +0000 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2020-01-22 20:41:58 +0000 |
| commit | a5d71b6b3ff4f91d06dca8dc0d674379d0832882 (patch) | |
| tree | 5ce20658e4a3e72ef22e64bf0f87e94ef197a08b /pkg/sentry/kernel/pipe/vfs.go | |
| parent | c1696dd8d4d4b4a1ade5be05169fb006b1f7bb6a (diff) | |
| parent | 5ab1213a6c405071546c783d6d93b4e9af52842e (diff) | |
Merge release-20200115.0-72-g5ab1213 (automated)
Diffstat (limited to 'pkg/sentry/kernel/pipe/vfs.go')
| -rwxr-xr-x | pkg/sentry/kernel/pipe/vfs.go | 12 |
1 files changed, 3 insertions, 9 deletions
diff --git a/pkg/sentry/kernel/pipe/vfs.go b/pkg/sentry/kernel/pipe/vfs.go index bf7461cbb..6f83e3cee 100755 --- a/pkg/sentry/kernel/pipe/vfs.go +++ b/pkg/sentry/kernel/pipe/vfs.go @@ -66,7 +66,7 @@ func NewVFSPipe(sizeBytes, atomicIOBytes int64) *VFSPipe { // for read and write will succeed both in blocking and nonblocking mode. POSIX // leaves this behavior undefined. This can be used to open a FIFO for writing // while there are no readers available." - fifo(7) -func (vp *VFSPipe) NewVFSPipeFD(ctx context.Context, rp *vfs.ResolvingPath, vfsd *vfs.Dentry, vfsfd *vfs.FileDescription, flags uint32) (*VFSPipeFD, error) { +func (vp *VFSPipe) NewVFSPipeFD(ctx context.Context, vfsd *vfs.Dentry, vfsfd *vfs.FileDescription, flags uint32) (*VFSPipeFD, error) { vp.mu.Lock() defer vp.mu.Unlock() @@ -76,7 +76,7 @@ func (vp *VFSPipe) NewVFSPipeFD(ctx context.Context, rp *vfs.ResolvingPath, vfsd return nil, syserror.EINVAL } - vfd, err := vp.open(rp, vfsd, vfsfd, flags) + vfd, err := vp.open(vfsd, vfsfd, flags) if err != nil { return nil, err } @@ -118,19 +118,13 @@ func (vp *VFSPipe) NewVFSPipeFD(ctx context.Context, rp *vfs.ResolvingPath, vfsd } // Preconditions: vp.mu must be held. -func (vp *VFSPipe) open(rp *vfs.ResolvingPath, vfsd *vfs.Dentry, vfsfd *vfs.FileDescription, flags uint32) (*VFSPipeFD, error) { +func (vp *VFSPipe) open(vfsd *vfs.Dentry, vfsfd *vfs.FileDescription, flags uint32) (*VFSPipeFD, error) { var fd VFSPipeFD fd.flags = flags fd.readable = vfs.MayReadFileWithOpenFlags(flags) fd.writable = vfs.MayWriteFileWithOpenFlags(flags) fd.vfsfd = vfsfd fd.pipe = &vp.pipe - if fd.writable { - // The corresponding Mount.EndWrite() is in VFSPipe.Release(). - if err := rp.Mount().CheckBeginWrite(); err != nil { - return nil, err - } - } switch { case fd.readable && fd.writable: |