bianbu-repo-mirror/bianbu-linux-6.6
1
0
Fork 0
mirror of https://gitee.com/bianbu-linux/linux-6.6 synced 2025-04-26 14:17:26 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

[PATCH] vmalloc: optimization, cleanup, bugfixes

Browse source 
- reorder 'struct vm_struct' to speedup lookups on CPUS with small cache
  lines.  The fields 'next,addr,size' should be now in the same cache line,
  to speedup lookups.

- One minor cleanup in __get_vm_area_node()

- Bugfixes in vmalloc_user() and vmalloc_32_user() NULL returns from
  __vmalloc() and __find_vm_area() were not tested.

[akpm@osdl.org: remove redundant BUG_ONs]
Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Eric Dumazet 2006-11-10 12:27:48 -08:00 • committed by Linus Torvalds
parent 088406bcf6
commit 2b4ac44e7c
2 changed files with 15 additions and 14 deletions
Download patch file Download diff file Expand all files Collapse all files

3
include/linux/vmalloc.h
View file

@ -23,13 +23,14 @@ struct vm_area_struct;
#endif
struct vm_struct {
/* keep next,addr,size together to speedup lookups */
struct vm_struct *next;
void *addr;
unsigned long size;
unsigned long flags;
struct page **pages;
unsigned int nr_pages;
unsigned long phys_addr;
struct vm_struct *next;
};
/*