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 11:41:38 -04:00
Code Issues Projects Releases Packages Wiki Activity

mm/memory-failure: set PageHWPoison before migrate_pages()

Browse source 
Now page freeing code doesn't consider PageHWPoison as a bad page, so by
setting it before completing the page containment, we can prevent the
error page from being reused just after successful page migration.

I added TTU_IGNORE_HWPOISON for try_to_unmap() to make sure that the
page table entry is transformed into migration entry, not to hwpoison
entry.

Signed-off-by: Naoya Horiguchi <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Dean Nelson <[email protected]>
Cc: Tony Luck <[email protected]>
Cc: "Kirill A. Shutemov" <[email protected]>
Cc: Hugh Dickins <[email protected]>
Cc: David Rientjes <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Naoya Horiguchi 2015-08-06 15:47:11 -07:00 • committed by Linus Torvalds
commit 4491f71260
2 changed files with 6 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

3
mm/migrate.c
View file

@ -880,7 +880,8 @@ static int __unmap_and_move(struct page *page, struct page *newpage,
/* Establish migration ptes or remove ptes */
if (page_mapped(page)) {
try_to_unmap(page,
TTU_MIGRATION|TTU_IGNORE_MLOCK|TTU_IGNORE_ACCESS);
TTU_MIGRATION|TTU_IGNORE_MLOCK|TTU_IGNORE_ACCESS|
TTU_IGNORE_HWPOISON);
page_was_mapped = 1;
}