diff options
| author | David S. Miller <davem@davemloft.net> | 2012-06-15 15:51:55 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-06-15 15:51:55 -0700 |
| commit | 7e52b33bd50faa866bc3e6e97e68438bc5e52251 (patch) | |
| tree | 46e68adf23f4f170a0eb5045c33a76234de6cf92 /mm/page_io.c | |
| parent | 91c8028c95a468da9c0aafd2d91cf24e27784206 (diff) | |
| parent | 2a0c451ade8e1783c5d453948289e4a978d417c9 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
net/ipv6/route.c
This deals with a merge conflict between the net-next addition of the
inetpeer network namespace ops, and Thomas Graf's bug fix in
2a0c451ade8e1783c5d453948289e4a978d417c9 which makes sure we don't
register /proc/net/ipv6_route before it is actually safe to do so.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'mm/page_io.c')
| -rw-r--r-- | mm/page_io.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/mm/page_io.c b/mm/page_io.c index dc76b4d0611..34f02923744 100644 --- a/mm/page_io.c +++ b/mm/page_io.c @@ -18,6 +18,7 @@ #include <linux/bio.h> #include <linux/swapops.h> #include <linux/writeback.h> +#include <linux/frontswap.h> #include <asm/pgtable.h> static struct bio *get_swap_bio(gfp_t gfp_flags, @@ -98,6 +99,12 @@ int swap_writepage(struct page *page, struct writeback_control *wbc) unlock_page(page); goto out; } + if (frontswap_store(page) == 0) { + set_page_writeback(page); + unlock_page(page); + end_page_writeback(page); + goto out; + } bio = get_swap_bio(GFP_NOIO, page, end_swap_bio_write); if (bio == NULL) { set_page_dirty(page); @@ -122,6 +129,11 @@ int swap_readpage(struct page *page) VM_BUG_ON(!PageLocked(page)); VM_BUG_ON(PageUptodate(page)); + if (frontswap_load(page) == 0) { + SetPageUptodate(page); + unlock_page(page); + goto out; + } bio = get_swap_bio(GFP_KERNEL, page, end_swap_bio_read); if (bio == NULL) { unlock_page(page); |