A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-30 03:27:44 -04:00
Code Issues Projects Releases Packages Wiki Activity

memory hotplug: free memmaps allocated by bootmem

Browse source 
This patch is to free memmaps which is allocated by bootmem.

Freeing usemap is not necessary.  The pages of usemap may be necessary for
other sections.

If removing section is last section on the node, its section is the final user
of usemap page.  (usemaps are allocated on its section by previous patch.) But
it shouldn't be freed too, because the section must be logical offline state
which all pages are isolated against page allocater.  If it is freed, page
alloctor may use it which will be removed physically soon.  It will be
disaster.  So, this patch keeps it as it is.

Signed-off-by: Yasunori Goto <[email protected]>
Cc: Badari Pulavarty <[email protected]>
Cc: Yinghai Lu <[email protected]>
Cc: Yasunori Goto <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Yasunori Goto 2008-04-28 02:13:34 -07:00 • committed by Linus Torvalds
commit 0c0a4a517a
4 changed files with 60 additions and 7 deletions
Download patch file Download diff file Expand all files Collapse all files

3
mm/internal.h
View file

@ -34,8 +34,7 @@ static inline void __put_page(struct page *page)
atomic_dec(&page->_count);
}
extern void __init __free_pages_bootmem(struct page *page,
unsigned int order);
extern void __free_pages_bootmem(struct page *page, unsigned int order);
/*
* function for dealing with page's order in buddy system.