Hi,
This series of patches is to reduce the size of struct vmap_area.
Since the members of struct vmap_area are not being used at the same time,
it is possible to reduce its size by placing several members that are not
used at the same time in a union.
The first 4 patches did some preparatory work for this and improved
readability.
The fifth patch is the main patch, it did the work of rewriting vmap_area.
More details can be obtained from the commit message.
Thanks,
Pengfei
Pengfei Li (5):
mm/vmalloc.c: Introduce a wrapper function of insert_vmap_area()
mm/vmalloc.c: Introduce a wrapper function of
insert_vmap_area_augment()
mm/vmalloc.c: Rename function __find_vmap_area() for readability
mm/vmalloc.c: Modify function merge_or_add_vmap_area() for readability
mm/vmalloc.c: Rewrite struct vmap_area to reduce its size
include/linux/vmalloc.h | 28 +++++---
mm/vmalloc.c | 144 +++++++++++++++++++++++++++-------------
2 files changed, 117 insertions(+), 55 deletions(-)
--
2.21.0
