Module Name: src
Committed By: pooka
Date: Sun Aug 4 11:02:02 UTC 2013
Modified Files:
src/tests/fs/vfs: t_io.c
Log Message:
tests for i/o-after-unlink
To generate a diff of this commit:
cvs rdiff -u -r1.11 -r1.12 src/tests/fs/vfs/t_io.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/tests/fs/vfs/t_io.c
diff -u src/tests/fs/vfs/t_io.c:1.11 src/tests/fs/vfs/t_io.c:1.12
--- src/tests/fs/vfs/t_io.c:1.11 Wed Jun 12 12:08:08 2013
+++ src/tests/fs/vfs/t_io.c Sun Aug 4 11:02:02 2013
@@ -1,4 +1,4 @@
-/* $NetBSD: t_io.c,v 1.11 2013/06/12 12:08:08 pooka Exp $ */
+/* $NetBSD: t_io.c,v 1.12 2013/08/04 11:02:02 pooka Exp $ */
/*-
* Copyright (c) 2010 The NetBSD Foundation, Inc.
@@ -168,6 +168,60 @@ shrinkfile(const atf_tc_t *tc, const cha
FSTEST_EXIT();
}
+#define TBSIZE 9000
+static void
+read_after_unlink(const atf_tc_t *tc, const char *mp)
+{
+ char buf[TBSIZE], buf2[TBSIZE];
+ int fd;
+
+ FSTEST_ENTER();
+
+ /* create file and put some content into it */
+ RL(fd = rump_sys_open("file", O_RDWR|O_CREAT, 0666));
+ memset(buf, 'D', TBSIZE);
+ ATF_REQUIRE_EQ(rump_sys_write(fd, buf, TBSIZE), TBSIZE);
+ rump_sys_close(fd);
+
+ /* flush buffers from UBC to file system */
+ ATF_REQUIRE_ERRNO(EBUSY, rump_sys_unmount(mp, 0) == -1);
+
+ RL(fd = rump_sys_open("file", O_RDWR));
+ RL(rump_sys_unlink("file"));
+
+ ATF_REQUIRE_EQ(rump_sys_read(fd, buf2, TBSIZE), TBSIZE);
+ ATF_REQUIRE_EQ(memcmp(buf, buf2, TBSIZE), 0);
+ rump_sys_close(fd);
+
+ FSTEST_EXIT();
+}
+
+static void
+wrrd_after_unlink(const atf_tc_t *tc, const char *mp)
+{
+ int value = 0x11;
+ int v2;
+ int fd;
+
+ FSTEST_ENTER();
+
+ RL(fd = rump_sys_open("file", O_RDWR|O_CREAT, 0666));
+ RL(rump_sys_unlink("file"));
+
+ RL(rump_sys_pwrite(fd, &value, sizeof(value), 654321));
+
+ /*
+ * We can't easily invalidate the buffer since we hold a
+ * reference, but try to get them to flush anyway.
+ */
+ RL(rump_sys_fsync(fd));
+ RL(rump_sys_pread(fd, &v2, sizeof(v2), 654321));
+ rump_sys_close(fd);
+
+ ATF_REQUIRE_EQ(value, v2);
+ FSTEST_EXIT();
+}
+
ATF_TC_FSAPPLY(holywrite, "create a sparse file and fill hole");
ATF_TC_FSAPPLY(extendfile, "check that extending a file works");
ATF_TC_FSAPPLY(extendfile_append, "check that extending a file works "
@@ -176,6 +230,8 @@ ATF_TC_FSAPPLY(overwrite512, "write a 51
ATF_TC_FSAPPLY(overwrite64k, "write a 64k byte file twice");
ATF_TC_FSAPPLY(overwrite_trunc, "write 64k + truncate + rewrite");
ATF_TC_FSAPPLY(shrinkfile, "shrink file");
+ATF_TC_FSAPPLY(read_after_unlink, "contents can be read off disk after unlink");
+ATF_TC_FSAPPLY(wrrd_after_unlink, "file can be written and read after unlink");
ATF_TP_ADD_TCS(tp)
{
@@ -187,6 +243,8 @@ ATF_TP_ADD_TCS(tp)
ATF_TP_FSAPPLY(overwrite64k);
ATF_TP_FSAPPLY(overwrite_trunc);
ATF_TP_FSAPPLY(shrinkfile);
+ ATF_TP_FSAPPLY(read_after_unlink);
+ ATF_TP_FSAPPLY(wrrd_after_unlink);
return atf_no_error();
}
