[LTP] [PATCH v2] fallocate04: another check if SEEK_HOLE is not supported

Zeng Linggang
2015-05-19T08:49:47Z

SEEK_HOLE is only supported since version 3.1. Check the specified
range blocks are zeroed while the kernel does not supported SEEK_HOLE.

Signed-off-by: Zhang Jin <jy_zhangjin@cn.fujitsu.com>
---
testcases/kernel/syscalls/fallocate/fallocate04.c | 13 ++++++++++---
1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/testcases/kernel/syscalls/fallocate/fallocate04.c b/testcases/kernel/syscalls/fallocate/fallocate04.c
index 911bbe8..e94c572 100644
--- a/testcases/kernel/syscalls/fallocate/fallocate04.c
+++ b/testcases/kernel/syscalls/fallocate/fallocate04.c
@@ -98,13 +98,13 @@ static void setup(void)
get_blocksize();
}

-static void check_file_data(const char exp_buf[], size_t size)
+static void check_file_data_(const char exp_buf[], size_t size, off_t offset)
{
char rbuf[size];

tst_resm(TINFO, "reading the file, compare with expected buffer");

- SAFE_LSEEK(cleanup, fd, 0, SEEK_SET);
+ SAFE_LSEEK(cleanup, fd, offset, SEEK_SET);
SAFE_READ(cleanup, 1, fd, rbuf, size);

if (memcmp(exp_buf, rbuf, size)) {
@@ -116,6 +116,11 @@ static void check_file_data(const char exp_buf[], size_t size)
}
}

+static inline void check_file_data(const char exp_buf[], size_t size)
+{
+ check_file_data_(exp_buf, size, 0);
+}
+
static void test01(void)
{
tst_resm(TINFO, "allocate '%zu' bytes", buf_size);
@@ -158,7 +163,9 @@ static void test02(void)
tst_brkm(TFAIL | TERRNO, cleanup,
"fallocate() or lseek() failed");
}
- tst_resm(TWARN | TERRNO, "lseek() doesn't support SEEK_HOLE");
+ char zeros[block_size];
+ memset(zeros, 0, block_size);
+ check_file_data_(zeros, block_size, block_size);
}
tst_resm(TINFO, "found a hole at '%ld' offset", ret);

--
1.9.3