+++ /dev/null
-From 34073d07beb1eaf3b9d9fc3da363f048d438ccc8 Mon Sep 17 00:00:00 2001
-From: Sasha Levin <sashal@kernel.org>
-Date: Thu, 22 Jan 2026 17:02:22 +0000
-Subject: selftests/mm: fix faulting-in code in pagemap_ioctl test
-
-From: Kevin Brodsky <kevin.brodsky@arm.com>
-
-[ Upstream commit 7e938f00b00319510ae097e20b7487dfa578d53f ]
-
-One of the pagemap_ioctl tests attempts to fault in pages by memcpy()'ing
-them to an unused buffer. This probably worked originally, but since
-commit 46036188ea1f ("selftests/mm: build with -O2") the compiler is free
-to optimise away that unused buffer and the memcpy() with it. As a result
-there might not be any resident page in the mapping and the test may fail.
-
-We don't need to copy all that memory anyway. Just fault in every page.
-
-While at it also make sure to compute the number of pages once using
-simple integer arithmetic instead of ceilf() and implicit conversions.
-
-Link: https://lkml.kernel.org/r/20260122170224.4056513-8-kevin.brodsky@arm.com
-Fixes: 46036188ea1f ("selftests/mm: build with -O2")
-Signed-off-by: Kevin Brodsky <kevin.brodsky@arm.com>
-Acked-by: David Hildenbrand (Red Hat) <david@kernel.org>
-Reviewed-by: Dev Jain <dev.jain@arm.com>
-Reviewed-by: Muhammad Usama Anjum <usama.anjum@arm.com>
-Cc: Jason Gunthorpe <jgg@nvidia.com>
-Cc: John Hubbard <jhubbard@nvidia.com>
-Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
-Cc: Mark Brown <broonie@kernel.org>
-Cc: Paolo Abeni <pabeni@redhat.com>
-Cc: Ryan Roberts <ryan.roberts@arm.com>
-Cc: SeongJae Park <sj@kernel.org>
-Cc: Shuah Khan <shuah@kernel.org>
-Cc: wang lian <lianux.mm@gmail.com>
-Cc: Yunsheng Lin <linyunsheng@huawei.com>
-Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
-Signed-off-by: Sasha Levin <sashal@kernel.org>
----
- tools/testing/selftests/mm/pagemap_ioctl.c | 9 ++++-----
- 1 file changed, 4 insertions(+), 5 deletions(-)
-
-diff --git a/tools/testing/selftests/mm/pagemap_ioctl.c b/tools/testing/selftests/mm/pagemap_ioctl.c
-index 805017fd9bdbf..c0e4b6a57ce55 100644
---- a/tools/testing/selftests/mm/pagemap_ioctl.c
-+++ b/tools/testing/selftests/mm/pagemap_ioctl.c
-@@ -1051,11 +1051,10 @@ static void test_simple(void)
- int sanity_tests(void)
- {
- unsigned long long mem_size, vec_size;
-- long ret, fd, i, buf_size;
-+ long ret, fd, i, buf_size, nr_pages;
- struct page_region *vec;
- char *mem, *fmem;
- struct stat sbuf;
-- char *tmp_buf;
-
- /* 1. wrong operation */
- mem_size = 10 * page_size;
-@@ -1166,14 +1165,14 @@ int sanity_tests(void)
- if (fmem == MAP_FAILED)
- ksft_exit_fail_msg("error nomem %d %s\n", errno, strerror(errno));
-
-- tmp_buf = malloc(sbuf.st_size);
-- memcpy(tmp_buf, fmem, sbuf.st_size);
-+ nr_pages = (sbuf.st_size + page_size - 1) / page_size;
-+ force_read_pages(fmem, nr_pages, page_size);
-
- ret = pagemap_ioctl(fmem, sbuf.st_size, vec, vec_size, 0, 0,
- 0, PAGEMAP_NON_WRITTEN_BITS, 0, PAGEMAP_NON_WRITTEN_BITS);
-
- ksft_test_result(ret >= 0 && vec[0].start == (uintptr_t)fmem &&
-- LEN(vec[0]) == ceilf((float)sbuf.st_size/page_size) &&
-+ LEN(vec[0]) == nr_pages &&
- (vec[0].categories & PAGE_IS_FILE),
- "%s Memory mapped file\n", __func__);
-
---
-2.51.0
-
pci-acpi-restrict-program_hpx_type2-to-aer-bits.patch
selftests-mm-pagemap_ioctl-fix-types-mismatches-show.patch
selftests-mm-convert-page_size-to-unsigned-long.patch
-selftests-mm-fix-faulting-in-code-in-pagemap_ioctl-t.patch
ipc-don-t-audit-capability-check-in-ipc_permissions.patch
ucount-check-for-cap_sys_resource-using-ns_capable_n.patch
of-unittest-fix-possible-null-pointer-dereferences-i.patch
+++ /dev/null
-From cf3c9df2152c243b7a0ca14a5be3fb58ae08ae64 Mon Sep 17 00:00:00 2001
-From: Sasha Levin <sashal@kernel.org>
-Date: Thu, 22 Jan 2026 17:02:22 +0000
-Subject: selftests/mm: fix faulting-in code in pagemap_ioctl test
-
-From: Kevin Brodsky <kevin.brodsky@arm.com>
-
-[ Upstream commit 7e938f00b00319510ae097e20b7487dfa578d53f ]
-
-One of the pagemap_ioctl tests attempts to fault in pages by memcpy()'ing
-them to an unused buffer. This probably worked originally, but since
-commit 46036188ea1f ("selftests/mm: build with -O2") the compiler is free
-to optimise away that unused buffer and the memcpy() with it. As a result
-there might not be any resident page in the mapping and the test may fail.
-
-We don't need to copy all that memory anyway. Just fault in every page.
-
-While at it also make sure to compute the number of pages once using
-simple integer arithmetic instead of ceilf() and implicit conversions.
-
-Link: https://lkml.kernel.org/r/20260122170224.4056513-8-kevin.brodsky@arm.com
-Fixes: 46036188ea1f ("selftests/mm: build with -O2")
-Signed-off-by: Kevin Brodsky <kevin.brodsky@arm.com>
-Acked-by: David Hildenbrand (Red Hat) <david@kernel.org>
-Reviewed-by: Dev Jain <dev.jain@arm.com>
-Reviewed-by: Muhammad Usama Anjum <usama.anjum@arm.com>
-Cc: Jason Gunthorpe <jgg@nvidia.com>
-Cc: John Hubbard <jhubbard@nvidia.com>
-Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
-Cc: Mark Brown <broonie@kernel.org>
-Cc: Paolo Abeni <pabeni@redhat.com>
-Cc: Ryan Roberts <ryan.roberts@arm.com>
-Cc: SeongJae Park <sj@kernel.org>
-Cc: Shuah Khan <shuah@kernel.org>
-Cc: wang lian <lianux.mm@gmail.com>
-Cc: Yunsheng Lin <linyunsheng@huawei.com>
-Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
-Signed-off-by: Sasha Levin <sashal@kernel.org>
----
- tools/testing/selftests/mm/pagemap_ioctl.c | 9 ++++-----
- 1 file changed, 4 insertions(+), 5 deletions(-)
-
-diff --git a/tools/testing/selftests/mm/pagemap_ioctl.c b/tools/testing/selftests/mm/pagemap_ioctl.c
-index 4fc8e578ec7c3..8978ab0b45a7a 100644
---- a/tools/testing/selftests/mm/pagemap_ioctl.c
-+++ b/tools/testing/selftests/mm/pagemap_ioctl.c
-@@ -1052,11 +1052,10 @@ static void test_simple(void)
- int sanity_tests(void)
- {
- unsigned long long mem_size, vec_size;
-- long ret, fd, i, buf_size;
-+ long ret, fd, i, buf_size, nr_pages;
- struct page_region *vec;
- char *mem, *fmem;
- struct stat sbuf;
-- char *tmp_buf;
-
- /* 1. wrong operation */
- mem_size = 10 * page_size;
-@@ -1167,14 +1166,14 @@ int sanity_tests(void)
- if (fmem == MAP_FAILED)
- ksft_exit_fail_msg("error nomem %d %s\n", errno, strerror(errno));
-
-- tmp_buf = malloc(sbuf.st_size);
-- memcpy(tmp_buf, fmem, sbuf.st_size);
-+ nr_pages = (sbuf.st_size + page_size - 1) / page_size;
-+ force_read_pages(fmem, nr_pages, page_size);
-
- ret = pagemap_ioctl(fmem, sbuf.st_size, vec, vec_size, 0, 0,
- 0, PAGEMAP_NON_WRITTEN_BITS, 0, PAGEMAP_NON_WRITTEN_BITS);
-
- ksft_test_result(ret >= 0 && vec[0].start == (uintptr_t)fmem &&
-- LEN(vec[0]) == ceilf((float)sbuf.st_size/page_size) &&
-+ LEN(vec[0]) == nr_pages &&
- (vec[0].categories & PAGE_IS_FILE),
- "%s Memory mapped file\n", __func__);
-
---
-2.51.0
-
pci-initialize-rcb-from-pci_configure_device.patch
pci-acpi-restrict-program_hpx_type2-to-aer-bits.patch
selftests-mm-fix-usage-of-force_read-in-cow-tests.patch
-selftests-mm-fix-faulting-in-code-in-pagemap_ioctl-t.patch
ipc-don-t-audit-capability-check-in-ipc_permissions.patch
ucount-check-for-cap_sys_resource-using-ns_capable_n.patch
jfs-avoid-wtautological-constant-out-of-range-compar.patch
+++ /dev/null
-From 365e2de33bfca616a389a0342f7e6fa3f8b75a06 Mon Sep 17 00:00:00 2001
-From: Sasha Levin <sashal@kernel.org>
-Date: Thu, 22 Jan 2026 17:02:22 +0000
-Subject: selftests/mm: fix faulting-in code in pagemap_ioctl test
-
-From: Kevin Brodsky <kevin.brodsky@arm.com>
-
-[ Upstream commit 7e938f00b00319510ae097e20b7487dfa578d53f ]
-
-One of the pagemap_ioctl tests attempts to fault in pages by memcpy()'ing
-them to an unused buffer. This probably worked originally, but since
-commit 46036188ea1f ("selftests/mm: build with -O2") the compiler is free
-to optimise away that unused buffer and the memcpy() with it. As a result
-there might not be any resident page in the mapping and the test may fail.
-
-We don't need to copy all that memory anyway. Just fault in every page.
-
-While at it also make sure to compute the number of pages once using
-simple integer arithmetic instead of ceilf() and implicit conversions.
-
-Link: https://lkml.kernel.org/r/20260122170224.4056513-8-kevin.brodsky@arm.com
-Fixes: 46036188ea1f ("selftests/mm: build with -O2")
-Signed-off-by: Kevin Brodsky <kevin.brodsky@arm.com>
-Acked-by: David Hildenbrand (Red Hat) <david@kernel.org>
-Reviewed-by: Dev Jain <dev.jain@arm.com>
-Reviewed-by: Muhammad Usama Anjum <usama.anjum@arm.com>
-Cc: Jason Gunthorpe <jgg@nvidia.com>
-Cc: John Hubbard <jhubbard@nvidia.com>
-Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
-Cc: Mark Brown <broonie@kernel.org>
-Cc: Paolo Abeni <pabeni@redhat.com>
-Cc: Ryan Roberts <ryan.roberts@arm.com>
-Cc: SeongJae Park <sj@kernel.org>
-Cc: Shuah Khan <shuah@kernel.org>
-Cc: wang lian <lianux.mm@gmail.com>
-Cc: Yunsheng Lin <linyunsheng@huawei.com>
-Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
-Signed-off-by: Sasha Levin <sashal@kernel.org>
----
- tools/testing/selftests/mm/pagemap_ioctl.c | 9 ++++-----
- 1 file changed, 4 insertions(+), 5 deletions(-)
-
-diff --git a/tools/testing/selftests/mm/pagemap_ioctl.c b/tools/testing/selftests/mm/pagemap_ioctl.c
-index 2cb5441f29c72..1896c7d4f72ee 100644
---- a/tools/testing/selftests/mm/pagemap_ioctl.c
-+++ b/tools/testing/selftests/mm/pagemap_ioctl.c
-@@ -1052,11 +1052,10 @@ static void test_simple(void)
- int sanity_tests(void)
- {
- unsigned long long mem_size, vec_size;
-- long ret, fd, i, buf_size;
-+ long ret, fd, i, buf_size, nr_pages;
- struct page_region *vec;
- char *mem, *fmem;
- struct stat sbuf;
-- char *tmp_buf;
-
- /* 1. wrong operation */
- mem_size = 10 * page_size;
-@@ -1167,14 +1166,14 @@ int sanity_tests(void)
- if (fmem == MAP_FAILED)
- ksft_exit_fail_msg("error nomem %d %s\n", errno, strerror(errno));
-
-- tmp_buf = malloc(sbuf.st_size);
-- memcpy(tmp_buf, fmem, sbuf.st_size);
-+ nr_pages = (sbuf.st_size + page_size - 1) / page_size;
-+ force_read_pages(fmem, nr_pages, page_size);
-
- ret = pagemap_ioctl(fmem, sbuf.st_size, vec, vec_size, 0, 0,
- 0, PAGEMAP_NON_WRITTEN_BITS, 0, PAGEMAP_NON_WRITTEN_BITS);
-
- ksft_test_result(ret >= 0 && vec[0].start == (uintptr_t)fmem &&
-- LEN(vec[0]) == ceilf((float)sbuf.st_size/page_size) &&
-+ LEN(vec[0]) == nr_pages &&
- (vec[0].categories & PAGE_IS_FILE),
- "%s Memory mapped file\n", __func__);
-
---
-2.51.0
-
pci-acpi-restrict-program_hpx_type2-to-aer-bits.patch
revert-net-smc-introduce-tcp-ulp-support.patch
selftests-mm-fix-usage-of-force_read-in-cow-tests.patch
-selftests-mm-fix-faulting-in-code-in-pagemap_ioctl-t.patch
ipc-don-t-audit-capability-check-in-ipc_permissions.patch
ucount-check-for-cap_sys_resource-using-ns_capable_n.patch
jfs-avoid-wtautological-constant-out-of-range-compar.patch
projects / thirdparty / kernel / stable-queue.git / commitdiff
