[LTP] [PATCH v5] mremap07.c: New case check mremap with MREMAP_DONTUNMAP

[Andrea Cervesato]

Hi Wei,

we are almost there to merge. A few comments below..

> This case test mremap() with MREMAP_DONTUNMAP and use userfaultfd
> verifies fault which triggered by accessing old memory region.

English can be improved a bit here:

Test mremap() with MREMAP_DONTUNMAP and verify that accessing the old
memory region triggers a page fault, which is then correctly handled
by a userfaultfd handler.

> +static void *fault_handler_thread(void *arg LTP_ATTRIBUTE_UNUSED)
> +{

Missing return NULL; in this function.

> +	if (strcmp(fault_addr, test_string) != 0)
> +		tst_res(TFAIL, "Verification failed: Content of the old "
> +			"address is '%s', expected '%s'", fault_addr, test_string);
> +	else
> +		tst_res(TPASS, "Verification passed: Content of the old "
> +			"address is correct after fault handling");
> +

We have TST_EXP_EQ_STR(fault_addr, test_string).

The rest is ok.

Regards,
--
Andrea Cervesato
SUSE QE Automation Engineer Linux
andrea.cervesato@suse.com