diff options
| author | Christoph Lameter <clameter@sgi.com> | 2006-02-01 03:05:39 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-02-01 08:53:16 -0800 |
| commit | a3351e525e4768c29aa5d22ef59b5b38e0361e53 (patch) | |
| tree | 457ab54f402b471c5158e8b361d059e88ab8cd62 /include/linux/swap.h | |
| parent | a48d07afdf18212de22b959715b16793c5a6e57a (diff) | |
| download | linux-a3351e525e4768c29aa5d22ef59b5b38e0361e53.tar.gz linux-a3351e525e4768c29aa5d22ef59b5b38e0361e53.tar.bz2 linux-a3351e525e4768c29aa5d22ef59b5b38e0361e53.zip | |
[PATCH] Direct Migration V9: remove_from_swap() to remove swap ptes
Add remove_from_swap
remove_from_swap() allows the restoration of the pte entries that existed
before page migration occurred for anonymous pages by walking the reverse
maps. This reduces swap use and establishes regular pte's without the need
for page faults.
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/linux/swap.h')
| -rw-r--r-- | include/linux/swap.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/swap.h b/include/linux/swap.h index d359fc022433..229b6d04b4b6 100644 --- a/include/linux/swap.h +++ b/include/linux/swap.h @@ -248,6 +248,7 @@ extern int remove_exclusive_swap_page(struct page *); struct backing_dev_info; extern spinlock_t swap_lock; +extern int remove_vma_swap(struct vm_area_struct *vma, struct page *page); /* linux/mm/thrash.c */ extern struct mm_struct * swap_token_mm; |