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tools/testing/vma: add simple test for append_vma_flags()

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Add a simple test for append_vma_flags() to assert that it behaves as
expected.

Additionally, include the VMA_REMAP_FLAGS definition in the VMA tests to
allow us to use this value in the testing.

Link: https://lkml.kernel.org/r/eebd946c5325ad7fae93027245a562eb1aeb68a2.1774034900.git.ljs@kernel.org
Signed-off-by: Lorenzo Stoakes (Oracle) <ljs@kernel.org>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Cc: Alexandre Ghiti <alex@ghiti.fr>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Cc: "Borislav Petkov (AMD)" <bp@alien8.de>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Chengming Zhou <chengming.zhou@linux.dev>
Cc: Christian Borntraeger <borntraeger@linux.ibm.com>
Cc: Christian Brauner <brauner@kernel.org>
Cc: David Hildenbrand <david@kernel.org>
Cc: Dinh Nguyen <dinguyen@kernel.org>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Huacai Chen <chenhuacai@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Jann Horn <jannh@google.com>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: Kees Cook <kees@kernel.org>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Madhavan Srinivasan <maddy@linux.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Ondrej Mosnacek <omosnace@redhat.com>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Paul Moore <paul@paul-moore.com>
Cc: Pedro Falcato <pfalcato@suse.de>
Cc: Richard Weinberger <richard@nod.at>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Stephen Smalley <stephen.smalley.work@gmail.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Sven Schnelle <svens@linux.ibm.com>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Vineet Gupta <vgupta@kernel.org>
Cc: Vlastimil Babka (SUSE) <vbabka@kernel.org>
Cc: WANG Xuerui <kernel@xen0n.name>
Cc: Will Deacon <will@kernel.org>
Cc: xu xin <xu.xin16@zte.com.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Lorenzo Stoakes (Oracle) 2026-03-20 19:38:25 +00:00 committed by Andrew Morton
parent e8d464f4a9
commit b22a48ec09
2 changed files with 28 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
tools/testing/vma/include/dup.h
View File

@ -345,6 +345,9 @@ enum {
*/
#define VM_SPECIAL (VM_IO | VM_DONTEXPAND | VM_PFNMAP | VM_MIXEDMAP)
#define VMA_REMAP_FLAGS mk_vma_flags(VMA_IO_BIT, VMA_PFNMAP_BIT, \
VMA_DONTEXPAND_BIT, VMA_DONTDUMP_BIT)
#define DEFAULT_MAP_WINDOW ((1UL << 47) - PAGE_SIZE)
#define TASK_SIZE_LOW DEFAULT_MAP_WINDOW
#define TASK_SIZE_MAX DEFAULT_MAP_WINDOW

25
tools/testing/vma/tests/vma.c
View File

@ -555,6 +555,30 @@ static bool test_vma_flags_and(void)
return true;
}
/* Ensure append_vma_flags() acts as expected. */
static bool test_append_vma_flags(void)
{
vma_flags_t flags = append_vma_flags(VMA_REMAP_FLAGS, VMA_READ_BIT,
VMA_WRITE_BIT
#if NUM_VMA_FLAG_BITS > 64
, 64, 65
#endif
);
ASSERT_FLAGS_SAME(&flags, VMA_IO_BIT, VMA_PFNMAP_BIT,
VMA_DONTEXPAND_BIT, VMA_DONTDUMP_BIT, VMA_READ_BIT,
VMA_WRITE_BIT
#if NUM_VMA_FLAG_BITS > 64
, 64, 65
#endif
);
flags = append_vma_flags(EMPTY_VMA_FLAGS, VMA_READ_BIT, VMA_WRITE_BIT);
ASSERT_FLAGS_SAME(&flags, VMA_READ_BIT, VMA_WRITE_BIT);
return true;
}
static void run_vma_tests(int *num_tests, int *num_fail)
{
TEST(copy_vma);
@ -569,4 +593,5 @@ static void run_vma_tests(int *num_tests, int *num_fail)
TEST(vma_flags_empty);
TEST(vma_flags_diff);
TEST(vma_flags_and);
TEST(append_vma_flags);
}