[PATCH 0/2] mm: tweaks for improving use of vmap_area

From: Igor Stoppa
Date: Thu Apr 26 2018 - 19:43:48 EST

These two patches were written in preparation for the creation of
protectable memory, however their use is not limited to pmalloc and can
improve the use of virtally contigous memory.

The first provides a faster path from struct page to the vm_struct that
tracks it.

The second patch renames a single linked list field inside of vmap_area.
The list is currently used only for disposing of the data structure, once
it is not in use anymore.
Which means that it cold be used for other purposes while it'not queued
for destruction.

The patches can also be obtained from here:


Igor Stoppa (2):
struct page: add field for vm_struct
vmalloc: rename llist field in vmap_area

include/linux/mm_types.h | 1 +
include/linux/vmalloc.h | 2 +-
mm/vmalloc.c | 8 +++++---
3 files changed, 7 insertions(+), 4 deletions(-)