Re: [PATCH RFC v2 2/4] mm: Add hint and mmap_flags to struct vm_unmapped_area_info
Lorenzo Stoakes <[email protected]>
| Newsgroups | gmane.linux.ports.ppc64.devel,gmane.linux.kernel.cross-arch,gmane.linux.kernel,gmane.linux.ports.alpha,gmane.linux.kernel.arc,gmane.linux.ports.arm.kernel,gmane.linux.ports.mips,gmane.linux.ports.parisc,gmane.linux.ports.sh.devel,gmane.linux.ports.sparc,gmane.linux.kernel.mm |
|---|---|
| Message-ID | <[email protected]> |
On Thu, Aug 29, 2024 at 12:15:59AM GMT, Charlie Jenkins wrote:
[snip]
> diff --git a/mm/mmap.c b/mm/mmap.c
> index d0dfc85b209b..34ba0db23678 100644
> --- a/mm/mmap.c
> +++ b/mm/mmap.c
> @@ -1796,6 +1796,9 @@ generic_get_unmapped_area(struct file *filp, unsigned long addr,
> struct vm_unmapped_area_info info = {};
> const unsigned long mmap_end = arch_get_mmap_end(addr, len, flags);
>
> + info.hint = addr;
> + info.mmap_flags = flags;
> +
> if (len > mmap_end - mmap_min_addr)
> return -ENOMEM;
>
> @@ -1841,6 +1844,9 @@ generic_get_unmapped_area_topdown(struct file *filp, unsigned long addr,
> struct vm_unmapped_area_info info = {};
> const unsigned long mmap_end = arch_get_mmap_end(addr, len, flags);
>
> + info.hint = addr;
> + info.mmap_flags = flags;
> +
> /* requested length too big for entire address space */
> if (len > mmap_end - mmap_min_addr)
> return -ENOMEM;
>
These line numbers suggest you're working against Linus's tree, mm/mmap.c
has changed a lot recently, so to avoid conflicts please base your changes
on mm-unstable in Andrew's tree (if looking to go through that) or at least
-next.
> --
> 2.45.0
>