diff options
| author | Michael Ellerman <mpe@ellerman.id.au> | 2024-08-12 11:26:03 +0300 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2024-09-02 06:26:12 +0300 |
| commit | 5463bafab476e430a385c6be58249a49b7549629 (patch) | |
| tree | caa4aa617ab9a66bde952eef33832d8f8ea70dd5 /arch/powerpc/include/asm | |
| parent | 223febc6e5573cda5e94e6b38fcdaded068db777 (diff) | |
| download | linux-5463bafab476e430a385c6be58249a49b7549629.tar.xz | |
powerpc/mm: handle VDSO unmapping via close() rather than arch_unmap()
Add a close() callback to the VDSO special mapping to handle unmapping of
the VDSO. That will make it possible to remove the arch_unmap() hook
entirely in a subsequent patch.
Link: https://lkml.kernel.org/r/20240812082605.743814-2-mpe@ellerman.id.au
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: Jeff Xu <jeffxu@google.com>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Pedro Falcato <pedro.falcato@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'arch/powerpc/include/asm')
| -rw-r--r-- | arch/powerpc/include/asm/mmu_context.h | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/arch/powerpc/include/asm/mmu_context.h b/arch/powerpc/include/asm/mmu_context.h index 37bffa0f7918..9b8c1555744e 100644 --- a/arch/powerpc/include/asm/mmu_context.h +++ b/arch/powerpc/include/asm/mmu_context.h @@ -263,10 +263,6 @@ extern void arch_exit_mmap(struct mm_struct *mm); static inline void arch_unmap(struct mm_struct *mm, unsigned long start, unsigned long end) { - unsigned long vdso_base = (unsigned long)mm->context.vdso; - - if (start <= vdso_base && vdso_base < end) - mm->context.vdso = NULL; } #ifdef CONFIG_PPC_MEM_KEYS |