LU-10070 test: llapi_layout_test enhancements

[fs/lustre-release.git] / lustre / tests / mmap_sanity.c

diff --git a/lustre/tests/mmap_sanity.c b/lustre/tests/mmap_sanity.c
index ba6063b..90a2edb 100644 (file)
--- a/lustre/tests/mmap_sanity.c
+++ b/lustre/tests/mmap_sanity.c
@@ -23,7 +23,7 @@
  * Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2012, 2015, Intel Corporation.
+ * Copyright (c) 2012, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
@@ -748,6 +748,56 @@ out:
         return rc;
 }
 
+static int mmap_tst9(char *mnt)
+{
+        char  fname[256];
+        char *buf = MAP_FAILED;
+        int fd = -1;
+        int rc = 0;
+
+       if (snprintf(fname, 256, "%s/mmap_tst9", mnt) >= 256) {
+               fprintf(stderr, "dir name too long\n");
+               rc = -ENAMETOOLONG;
+               goto out;
+       }
+       if (unlink(fname) == -1 && errno != ENOENT) {
+               perror("unlink");
+               rc = -errno;
+               goto out;
+       }
+       fd = open(fname, O_RDWR | O_CREAT, 0644);
+       if (fd == -1) {
+               perror("open");
+               rc = -errno;
+               goto out;
+        }
+       buf = mmap(NULL, page_size * 2,
+                  PROT_READ , MAP_PRIVATE, fd, (loff_t)(-10 * page_size));
+       if (buf == MAP_FAILED) {
+               perror("mmap");
+               rc = -errno;
+               goto out;
+       }
+       rc = write(STDOUT_FILENO, buf, 2 * page_size);
+       if (rc != -1) {
+               fprintf(stderr, "write succeded with %d instead of failing\n", rc);
+               rc = -EINVAL;
+               goto out;
+       } else if (errno != EFAULT) {
+               fprintf(stderr, "write failed with %d instead of EFAULT(%d)\n",
+                       errno, EFAULT);
+               rc = -errno;
+               goto out;
+       }
+       rc = 0;
+out:
+       if (buf != MAP_FAILED)
+               munmap(buf, page_size * 2);
+       if (fd != -1)
+               close(fd);
+       return rc;
+}
+
 static int remote_tst(int tc, char *mnt)
 {
         int rc = 0;
@@ -829,6 +879,12 @@ struct test_case tests[] = {
                .node_cnt       = 1
        },
        {
+               .tc             = 9,
+               .desc           = "mmap test9: SIGBUS for negative file offset",
+               .test_fn        = mmap_tst9,
+               .node_cnt       = 1
+       },
+       {
                .tc             = 0
        }
 };