lockd: fix arg parsing for grace_period and timeout.

[firefly-linux-kernel-4.4.55.git] / fs / ecryptfs / file.c

diff --git a/fs/ecryptfs/file.c b/fs/ecryptfs/file.c
index 4ec9eb00a241fb56adcec03587d8b3c8ae506d40..0c1a652700499abcf3239a715c2635361946720b 100644 (file)
--- a/fs/ecryptfs/file.c
+++ b/fs/ecryptfs/file.c
@@ -139,6 +139,27 @@ out:
        return rc;
 }
 
+static void ecryptfs_vma_close(struct vm_area_struct *vma)
+{
+       filemap_write_and_wait(vma->vm_file->f_mapping);
+}
+
+static const struct vm_operations_struct ecryptfs_file_vm_ops = {
+       .close          = ecryptfs_vma_close,
+       .fault          = filemap_fault,
+};
+
+static int ecryptfs_file_mmap(struct file *file, struct vm_area_struct *vma)
+{
+       int rc;
+
+       rc = generic_file_mmap(file, vma);
+       if (!rc)
+               vma->vm_ops = &ecryptfs_file_vm_ops;
+
+       return rc;
+}
+
 struct kmem_cache *ecryptfs_file_info_cache;
 
 /**
@@ -348,7 +369,7 @@ const struct file_operations ecryptfs_main_fops = {
 #ifdef CONFIG_COMPAT
        .compat_ioctl = ecryptfs_compat_ioctl,
 #endif
-       .mmap = generic_file_mmap,
+       .mmap = ecryptfs_file_mmap,
        .open = ecryptfs_open,
        .flush = ecryptfs_flush,
        .release = ecryptfs_release,