| commit | 38ec4b47d1f474f6da8b5249fd631312b1bf61a9 | |
| author | Andrea Arcangeli <aarcange@redhat.com> | |
| Thu, 16 Jun 2011 19:56:19 +0000 (16 12:56 -0700) | ||
| committer | Greg Kroah-Hartman <gregkh@suse.de> | |
| Sat, 9 Jul 2011 06:14:57 +0000 (8 23:14 -0700) | ||
| tree | 6fcd9b14a44b2cb9dd6bccb2239b41b79e312890 | treesnapshot (tar.gz zip) |
| parent | 6a435c15c4f4374c2311532791f4bc1d19683e66 | commitdiff |
migrate: don't account swapcache as shmem
commit 99a15e21d96f6857dafab1e5167e5e8183215c9c upstream.
swapcache will reach the below code path in migrate_page_move_mapping,
and swapcache is accounted as NR_FILE_PAGES but it's not accounted as
NR_SHMEM.
Hugh pointed out we must use PageSwapCache instead of comparing
mapping to &swapper_space, to avoid build failure with CONFIG_SWAP=n.
Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Acked-by: Hugh Dickins <hughd@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
commit 99a15e21d96f6857dafab1e5167e5e8183215c9c upstream.
swapcache will reach the below code path in migrate_page_move_mapping,
and swapcache is accounted as NR_FILE_PAGES but it's not accounted as
NR_SHMEM.
Hugh pointed out we must use PageSwapCache instead of comparing
mapping to &swapper_space, to avoid build failure with CONFIG_SWAP=n.
Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Acked-by: Hugh Dickins <hughd@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| mm/migrate.c | diffblobblamehistory |