diff options
| author | Uladzislau Rezki (Sony) <urezki@gmail.com> | 2025-10-07 14:20:34 +0200 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2025-11-16 17:27:55 -0800 |
| commit | 0667b209e92965da8c2006b673bea69050ede1a2 (patch) | |
| tree | 9c0968662dedb858bcf942d0d49758ccb602a96b /mm/vmalloc.c | |
| parent | 7241bb2ea33d5ff50b77a5981342bcc826bef52a (diff) | |
| download | tip-0667b209e92965da8c2006b673bea69050ede1a2.tar.gz | |
mm/vmalloc: update __vmalloc_node_range() documentation
__vmalloc() now supports non-blocking flags such as GFP_ATOMIC and
GFP_NOWAIT. Update the documentation accordingly.
Link: https://lkml.kernel.org/r/20251007122035.56347-10-urezki@gmail.com
Signed-off-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: Marco Elver <elver@google.com>
Cc: Michal Hocko <mhocko@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/vmalloc.c')
| -rw-r--r-- | mm/vmalloc.c | 21 |
1 files changed, 11 insertions, 10 deletions
diff --git a/mm/vmalloc.c b/mm/vmalloc.c index d7e7049e01f8ff..9a63c91c6150dd 100644 --- a/mm/vmalloc.c +++ b/mm/vmalloc.c @@ -3881,19 +3881,20 @@ fail: * @caller: caller's return address * * Allocate enough pages to cover @size from the page level - * allocator with @gfp_mask flags. Please note that the full set of gfp - * flags are not supported. GFP_KERNEL, GFP_NOFS and GFP_NOIO are all - * supported. - * Zone modifiers are not supported. From the reclaim modifiers - * __GFP_DIRECT_RECLAIM is required (aka GFP_NOWAIT is not supported) - * and only __GFP_NOFAIL is supported (i.e. __GFP_NORETRY and - * __GFP_RETRY_MAYFAIL are not supported). + * allocator with @gfp_mask flags and map them into contiguous + * virtual range with protection @prot. * - * __GFP_NOWARN can be used to suppress failures messages. + * Supported GFP classes: %GFP_KERNEL, %GFP_ATOMIC, %GFP_NOWAIT, + * %GFP_NOFS and %GFP_NOIO. Zone modifiers are not supported. + * Please note %GFP_ATOMIC and %GFP_NOWAIT are supported only + * by __vmalloc(). * - * Map them into contiguous kernel virtual space, using a pagetable - * protection of @prot. + * Retry modifiers: only %__GFP_NOFAIL is supported; %__GFP_NORETRY + * and %__GFP_RETRY_MAYFAIL are not supported. * + * %__GFP_NOWARN can be used to suppress failure messages. + * + * Can not be called from interrupt nor NMI contexts. * Return: the address of the area or %NULL on failure */ void *__vmalloc_node_range_noprof(unsigned long size, unsigned long align, |