diff options
Diffstat (limited to 'pkg/sentry/vfs/file_description.go')
| -rw-r--r-- | pkg/sentry/vfs/file_description.go | 24 |
1 files changed, 21 insertions, 3 deletions
diff --git a/pkg/sentry/vfs/file_description.go b/pkg/sentry/vfs/file_description.go index 326e35688..f612a71b2 100644 --- a/pkg/sentry/vfs/file_description.go +++ b/pkg/sentry/vfs/file_description.go @@ -566,7 +566,11 @@ func (fd *FileDescription) Allocate(ctx context.Context, mode, offset, length ui if !fd.IsWritable() { return syserror.EBADF } - return fd.impl.Allocate(ctx, mode, offset, length) + if err := fd.impl.Allocate(ctx, mode, offset, length); err != nil { + return err + } + fd.Dentry().InotifyWithParent(ctx, linux.IN_MODIFY, 0, PathEvent) + return nil } // Readiness implements waiter.Waitable.Readiness. @@ -602,6 +606,9 @@ func (fd *FileDescription) PRead(ctx context.Context, dst usermem.IOSequence, of } start := fsmetric.StartReadWait() n, err := fd.impl.PRead(ctx, dst, offset, opts) + if n > 0 { + fd.Dentry().InotifyWithParent(ctx, linux.IN_ACCESS, 0, PathEvent) + } fsmetric.Reads.Increment() fsmetric.FinishReadWait(fsmetric.ReadWait, start) return n, err @@ -614,6 +621,9 @@ func (fd *FileDescription) Read(ctx context.Context, dst usermem.IOSequence, opt } start := fsmetric.StartReadWait() n, err := fd.impl.Read(ctx, dst, opts) + if n > 0 { + fd.Dentry().InotifyWithParent(ctx, linux.IN_ACCESS, 0, PathEvent) + } fsmetric.Reads.Increment() fsmetric.FinishReadWait(fsmetric.ReadWait, start) return n, err @@ -629,7 +639,11 @@ func (fd *FileDescription) PWrite(ctx context.Context, src usermem.IOSequence, o if !fd.writable { return 0, syserror.EBADF } - return fd.impl.PWrite(ctx, src, offset, opts) + n, err := fd.impl.PWrite(ctx, src, offset, opts) + if n > 0 { + fd.Dentry().InotifyWithParent(ctx, linux.IN_MODIFY, 0, PathEvent) + } + return n, err } // Write is similar to PWrite, but does not specify an offset. @@ -637,7 +651,11 @@ func (fd *FileDescription) Write(ctx context.Context, src usermem.IOSequence, op if !fd.writable { return 0, syserror.EBADF } - return fd.impl.Write(ctx, src, opts) + n, err := fd.impl.Write(ctx, src, opts) + if n > 0 { + fd.Dentry().InotifyWithParent(ctx, linux.IN_MODIFY, 0, PathEvent) + } + return n, err } // IterDirents invokes cb on each entry in the directory represented by fd. If |