diff options
| author | Lorenzo Stoakes <lorenzo.stoakes@oracle.com> | 2025-07-29 12:49:06 +0100 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2025-08-02 12:06:13 -0700 |
| commit | f04fd85f15945f3ff189701050e3ce303c1a4d98 (patch) | |
| tree | 3ed626bda581c4ac98b2909e03bf5aaeab062427 /mm | |
| parent | de55be42379cc0561aadfd9e1459239dea70be32 (diff) | |
| download | tip-f04fd85f15945f3ff189701050e3ce303c1a4d98.tar.gz | |
mm: correct type for vmalloc vm_flags fields
Several functions refer to the unfortunately named 'vm_flags' field when
referencing vmalloc flags, which happens to be the precise same name used
for VMA flags.
As a result these were erroneously changed to use the vm_flags_t type
(which currently is a typedef equivalent to unsigned long).
Currently this has no impact, but in future when vm_flags_t changes this
will result in issues, so change the type to unsigned long to account for
this.
[lorenzo.stoakes@oracle.com: fixup very disguised vmalloc flags parameter]
Link: https://lkml.kernel.org/r/e74dd8de-7e60-47ab-8a45-2c851f3c5d26@lucifer.local
Link: https://lkml.kernel.org/r/20250729114906.55347-1-lorenzo.stoakes@oracle.com
Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Reported-by: Harry Yoo <harry.yoo@oracle.com>
Closes: https://lore.kernel.org/all/aIgSpAnU8EaIcqd9@hyeyoo/
Reviewed-by: Pedro Falcato <pfalcato@suse.de>
Acked-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Harry Yoo <harry.yoo@oracle.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Jann Horn <jannh@google.com>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: "Uladzislau Rezki (Sony)" <urezki@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/execmem.c | 8 | ||||
| -rw-r--r-- | mm/internal.h | 2 | ||||
| -rw-r--r-- | mm/nommu.c | 2 |
3 files changed, 6 insertions, 6 deletions
diff --git a/mm/execmem.c b/mm/execmem.c index 1785d7f435e44d..0822305413ece1 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, vm_flags_t vm_flags) + pgprot_t pgprot, unsigned long 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, vm_flags_t vm_flags) + pgprot_t pgprot, unsigned long vm_flags) { return vmalloc(size); } @@ -283,7 +283,7 @@ out_unlock: static int execmem_cache_populate(struct execmem_range *range, size_t size) { - vm_flags_t vm_flags = VM_ALLOW_HUGE_VMAP; + unsigned long vm_flags = VM_ALLOW_HUGE_VMAP; struct vm_struct *vm; size_t alloc_size; int err = -ENOMEM; @@ -465,7 +465,7 @@ 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; - vm_flags_t vm_flags = VM_FLUSH_RESET_PERMS; + unsigned long vm_flags = VM_FLUSH_RESET_PERMS; pgprot_t pgprot = range->pgprot; void *p = NULL; diff --git a/mm/internal.h b/mm/internal.h index 28d2d5b051df6c..142d9302c2aed9 100644 --- a/mm/internal.h +++ b/mm/internal.h @@ -1391,7 +1391,7 @@ int migrate_device_coherent_folio(struct folio *folio); struct vm_struct *__get_vm_area_node(unsigned long size, unsigned long align, unsigned long shift, - vm_flags_t vm_flags, unsigned long start, + unsigned long vm_flags, unsigned long start, unsigned long end, int node, gfp_t gfp_mask, const void *caller); diff --git a/mm/nommu.c b/mm/nommu.c index 87e1acab0d64a1..07504d666d6a48 100644 --- a/mm/nommu.c +++ b/mm/nommu.c @@ -126,7 +126,7 @@ void *vrealloc_noprof(const void *p, size_t size, gfp_t flags) void *__vmalloc_node_range_noprof(unsigned long size, unsigned long align, unsigned long start, unsigned long end, gfp_t gfp_mask, - pgprot_t prot, vm_flags_t vm_flags, int node, + pgprot_t prot, unsigned long vm_flags, int node, const void *caller) { return __vmalloc_noprof(size, gfp_mask); |