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Revert "selftest/vm: verify remap destination address in mremap_test"

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This reverts commit 0b4e16093e.

The upstream commit 18d609daa546 ("selftest/vm: verify remap destination
address in mremap_test") was backported as commit 2688d967ec
("selftest/vm: verify remap destination address in mremap_test").
Repeated backport introduced the duplicate of function
is_remap_region_valid to the file breakign the vm selftest build.

Fixes: 0b4e16093e ("selftest/vm: verify remap destination address in mremap_test")
Signed-off-by: Oleksandr Tymoshenko <ovt@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Oleksandr Tymoshenko
2022-07-15 23:15:41 +00:00
committed by Greg Kroah-Hartman
parent d7c4f9b8ed
commit cfd3a9be0a
1 changed files with 0 additions and 24 deletions
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24
tools/testing/selftests/vm/mremap_test.c
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@@ -66,30 +66,6 @@ enum {
.expect_failure = should_fail \
}
/*
* Returns false if the requested remap region overlaps with an
* existing mapping (e.g text, stack) else returns true.
*/
static bool is_remap_region_valid(void *addr, unsigned long long size)
{
void *remap_addr = NULL;
bool ret = true;
/* Use MAP_FIXED_NOREPLACE flag to ensure region is not mapped */
remap_addr = mmap(addr, size, PROT_READ | PROT_WRITE,
MAP_FIXED_NOREPLACE | MAP_ANONYMOUS | MAP_SHARED,
-1, 0);
if (remap_addr == MAP_FAILED) {
if (errno == EEXIST)
ret = false;
} else {
munmap(remap_addr, size);
}
return ret;
}
/* Returns mmap_min_addr sysctl tunable from procfs */
static unsigned long long get_mmap_min_addr(void)
{