one copy-pasta error below: On 1/12/21 8:11 AM, Liam R. Howlett wrote: > Use the new maple tree data structure to find an unmapped area. > > Signed-off-by: Liam R. Howlett <Liam.Howlett@xxxxxxxxxx> > --- > mm/mmap.c | 249 ++++++------------------------------------------------ > 1 file changed, 27 insertions(+), 222 deletions(-) > > diff --git a/mm/mmap.c b/mm/mmap.c > index f123f9c97dfe8..3b3084ee309b7 100644 > --- a/mm/mmap.c > +++ b/mm/mmap.c > @@ -2040,260 +2040,65 @@ unsigned long mmap_region(struct file *file, unsigned long addr, > return error; > } > > +/* unmapped_area() Find an area between the low_limit and the high_limit with > + * the correct alignment and offset, all from @info. Note: current->mm is used > + * for the search. > + * > + * @info: The unmapped area information including the range (low_limit - > + * hight_limit), the alignment offset and mask. > + * > + * Return: A memory address or -ENOMEM. > + */ > static unsigned long unmapped_area(struct vm_unmapped_area_info *info) > { ... > } > > +/* unmapped_area() Find an area between the low_limit and the high_limit with s/unmapped_area/unmapped_area_topdown/ > + * the correct alignment and offset at the highest available address, all from > + * @info. Note: current->mm is used for the search. > + * > + * @info: The unmapped area information including the range (low_limit - > + * hight_limit), the alignment offset and mask. > + * > + * Return: A memory address or -ENOMEM. > + */ > static unsigned long unmapped_area_topdown(struct vm_unmapped_area_info *info) > { thanks. -- ~Randy