This is a note to let you know that I've just added the patch titled
Revert "selftest/vm: verify remap destination address in mremap_test"
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
revert-selftest-vm-verify-remap-destination-address-in-mremap_test.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From foo@baz Sat Jul 23 04:53:32 PM CEST 2022
From: Oleksandr Tymoshenko <ovt@xxxxxxxxxx>
Date: Fri, 15 Jul 2022 23:15:41 +0000
Subject: Revert "selftest/vm: verify remap destination address in mremap_test"
To: gregkh@xxxxxxxxxxxxxxxxxxx
Cc: sidhartha.kumar@xxxxxxxxxx, stable@xxxxxxxxxxxxxxx, Oleksandr Tymoshenko <ovt@xxxxxxxxxx>
Message-ID: <20220715231542.2169650-2-ovt@xxxxxxxxxx>
From: Oleksandr Tymoshenko <ovt@xxxxxxxxxx>
This reverts commit 0b4e16093e081a3ab08b0d6cedf79b249f41b248.
The upstream commit 18d609daa546 ("selftest/vm: verify remap destination
address in mremap_test") was backported as commit 2688d967ec65
("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: 0b4e16093e08 ("selftest/vm: verify remap destination address in mremap_test")
Signed-off-by: Oleksandr Tymoshenko <ovt@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
tools/testing/selftests/vm/mremap_test.c | 24 ------------------------
1 file changed, 24 deletions(-)
--- a/tools/testing/selftests/vm/mremap_test.c
+++ b/tools/testing/selftests/vm/mremap_test.c
@@ -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)
{
Patches currently in stable-queue which might be from ovt@xxxxxxxxxx are
queue-5.15/revert-selftest-vm-verify-remap-destination-address-in-mremap_test.patch
queue-5.15/revert-selftest-vm-verify-mmap-addr-in-mremap_test.patch
