[src/trunk]: src/tests/fs/vfs add test for kern/43321, blessed by pooka@

[kefren <kefren%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/11372644ccab
branches:  trunk
changeset: 760711:11372644ccab
user:      kefren <kefren%NetBSD.org@localhost>
date:      Tue Jan 11 14:03:38 2011 +0000

description:
add test for kern/43321, blessed by pooka@

diffstat:

 tests/fs/vfs/t_vnops.c |  48 +++++++++++++++++++++++++++++++++++++++++++++++-
 1 files changed, 47 insertions(+), 1 deletions(-)

diffs (76 lines):

diff -r 21a54236c7f2 -r 11372644ccab tests/fs/vfs/t_vnops.c
--- a/tests/fs/vfs/t_vnops.c    Tue Jan 11 13:46:47 2011 +0000
+++ b/tests/fs/vfs/t_vnops.c    Tue Jan 11 14:03:38 2011 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: t_vnops.c,v 1.11 2011/01/04 11:17:22 pooka Exp $       */
+/*     $NetBSD: t_vnops.c,v 1.12 2011/01/11 14:03:38 kefren Exp $      */
 
 /*-
  * Copyright (c) 2010 The NetBSD Foundation, Inc.
@@ -523,6 +523,50 @@
        FSTEST_EXIT();
 }
 
+static void
+fcntl_lock(const atf_tc_t *tc, const char *mp)
+{
+       int fd, fd2;
+       struct flock l;
+       struct lwp *lwp1, *lwp2;
+
+       FSTEST_ENTER();
+       l.l_pid = 0;
+       l.l_start = l.l_len = 1024;
+       l.l_type = F_RDLCK | F_WRLCK;
+       l.l_whence = SEEK_END;
+
+       lwp1 = rump_pub_lwproc_curlwp();
+       RL(fd = rump_sys_open(TESTFILE, O_RDWR | O_CREAT, 0755));
+       RL(rump_sys_ftruncate(fd, 8192));
+
+       /* PR kern/43321 */
+       RL(rump_sys_fcntl(fd, F_SETLK, &l));
+
+       /* Next, we fork and try to lock the same area */
+       RZ(rump_pub_lwproc_rfork(RUMP_RFCFDG));
+       lwp2 = rump_pub_lwproc_curlwp();
+       RL(fd2 = rump_sys_open(TESTFILE, O_RDWR, 0));
+       ATF_REQUIRE_ERRNO(EAGAIN, rump_sys_fcntl(fd2, F_SETLK, &l));
+
+       /* Switch back and unlock... */
+       rump_pub_lwproc_switch(lwp1);
+       l.l_type = F_UNLCK;
+       RL(rump_sys_fcntl(fd, F_SETLK, &l));
+
+       /* ... and try to lock again */
+       rump_pub_lwproc_switch(lwp2);
+       l.l_type = F_RDLCK | F_WRLCK;
+       RL(rump_sys_fcntl(fd2, F_SETLK, &l));
+
+       RL(rump_sys_close(fd2));
+       rump_pub_lwproc_releaselwp();
+
+       RL(rump_sys_close(fd));
+
+       FSTEST_EXIT();
+}
+
 ATF_TC_FSAPPLY(lookup_simple, "simple lookup (./.. on root)");
 ATF_TC_FSAPPLY(lookup_complex, "lookup of non-dot entries");
 ATF_TC_FSAPPLY(dir_simple, "mkdir/rmdir");
@@ -534,6 +578,7 @@
 ATF_TC_FSAPPLY(rename_nametoolong, "rename to file with name too long");
 ATF_TC_FSAPPLY(symlink_zerolen, "symlink with 0-len target");
 ATF_TC_FSAPPLY(attrs, "check setting attributes works");
+ATF_TC_FSAPPLY(fcntl_lock, "check fcntl F_SETLK");
 
 ATF_TP_ADD_TCS(tp)
 {
@@ -549,6 +594,7 @@
        ATF_TP_FSAPPLY(rename_nametoolong);
        ATF_TP_FSAPPLY(symlink_zerolen);
        ATF_TP_FSAPPLY(attrs);
+       ATF_TP_FSAPPLY(fcntl_lock);
 
        return atf_no_error();
 }