diff options
| author | Lorenzo Stoakes <lorenzo.stoakes@oracle.com> | 2025-06-18 20:42:53 +0100 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2025-07-09 22:42:13 -0700 |
| commit | bfbe71109fa40e8cc05a0f99e6734b7d76ee00b0 (patch) | |
| tree | 9a02712343f1715fc3706784632bead7296057d3 /mm/execmem.c | |
| parent | 78ddaa358ec4cdd60bd0e243ced1c83a52c30241 (diff) | |
mm: update core kernel code to use vm_flags_t consistently
The core kernel code is currently very inconsistent in its use of
vm_flags_t vs. unsigned long. This prevents us from changing the type of
vm_flags_t in the future and is simply not correct, so correct this.
While this results in rather a lot of churn, it is a critical
pre-requisite for a future planned change to VMA flag type.
Additionally, update VMA userland tests to account for the changes.
To make review easier and to break things into smaller parts, driver and
architecture-specific changes is left for a subsequent commit.
The code has been adjusted to cascade the changes across all calling code
as far as is needed.
We will adjust architecture-specific and driver code in a subsequent patch.
Overall, this patch does not introduce any functional change.
Link: https://lkml.kernel.org/r/d1588e7bb96d1ea3fe7b9df2c699d5b4592d901d.1750274467.git.lorenzo.stoakes@oracle.com
Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Acked-by: Kees Cook <kees@kernel.org>
Acked-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Acked-by: Jan Kara <jack@suse.cz>
Acked-by: Christian Brauner <brauner@kernel.org>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Oscar Salvador <osalvador@suse.de>
Reviewed-by: Pedro Falcato <pfalcato@suse.de>
Acked-by: Zi Yan <ziy@nvidia.com>
Acked-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Jann Horn <jannh@google.com>
Cc: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/execmem.c')
| -rw-r--r-- | mm/execmem.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/mm/execmem.c b/mm/execmem.c index 2b683e7d864d..627e6cf64f4f 100644 --- a/mm/execmem.c +++ b/mm/execmem.c @@ -26,7 +26,7 @@ static struct execmem_info default_execmem_info __ro_after_init; #ifdef CONFIG_MMU static void *execmem_vmalloc(struct execmem_range *range, size_t size, - pgprot_t pgprot, unsigned long vm_flags) + pgprot_t pgprot, vm_flags_t vm_flags) { bool kasan = range->flags & EXECMEM_KASAN_SHADOW; gfp_t gfp_flags = GFP_KERNEL | __GFP_NOWARN; @@ -82,7 +82,7 @@ struct vm_struct *execmem_vmap(size_t size) } #else static void *execmem_vmalloc(struct execmem_range *range, size_t size, - pgprot_t pgprot, unsigned long vm_flags) + pgprot_t pgprot, vm_flags_t vm_flags) { return vmalloc(size); } @@ -256,7 +256,7 @@ out_unlock: static int execmem_cache_populate(struct execmem_range *range, size_t size) { - unsigned long vm_flags = VM_ALLOW_HUGE_VMAP; + vm_flags_t vm_flags = VM_ALLOW_HUGE_VMAP; struct vm_struct *vm; size_t alloc_size; int err = -ENOMEM; @@ -373,7 +373,7 @@ void *execmem_alloc(enum execmem_type type, size_t size) { struct execmem_range *range = &execmem_info->ranges[type]; bool use_cache = range->flags & EXECMEM_ROX_CACHE; - unsigned long vm_flags = VM_FLUSH_RESET_PERMS; + vm_flags_t vm_flags = VM_FLUSH_RESET_PERMS; pgprot_t pgprot = range->pgprot; void *p; |