diff options
| author |   Miaohe Lin <linmiaohe@huawei.com> | 2021-05-04 18:37:42 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2021-05-05 11:27:25 -0700 |
| commit | cd7fae26024690c772ec66719735c58a12034088 (patch) | |
| tree | 915b54f636e978294e1cce00cf9a88ea1c2f3c8d /mm/ksm.c | |
| parent | ksm: use GET_KSM_PAGE_NOLOCK to get ksm page in remove_rmap_item_from_tree() (diff) | |
| download | linux-dev-cd7fae26024690c772ec66719735c58a12034088.tar.xz linux-dev-cd7fae26024690c772ec66719735c58a12034088.zip | |
ksm: remove dedicated macro KSM_FLAG_MASK
The macro KSM_FLAG_MASK is used in rmap_walk_ksm() only. So we can
replace ~KSM_FLAG_MASK with PAGE_MASK to remove this dedicated macro and
make code more consistent because PAGE_MASK is used elsewhere in this
file.
Link: https://lkml.kernel.org/r/20210330140228.45635-4-linmiaohe@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Cc: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/ksm.c')
| -rw-r--r-- | mm/ksm.c | 4 |
1 files changed, 1 insertions, 3 deletions
@@ -215,8 +215,6 @@ struct rmap_item { #define SEQNR_MASK 0x0ff /* low bits of unstable tree seqnr */ #define UNSTABLE_FLAG 0x100 /* is a node of the unstable tree */ #define STABLE_FLAG 0x200 /* is listed from the stable tree */ -#define KSM_FLAG_MASK (SEQNR_MASK|UNSTABLE_FLAG|STABLE_FLAG) - /* to mask all the flags */ /* The stable and unstable tree heads */ static struct rb_root one_stable_tree[1] = { RB_ROOT }; @@ -2631,7 +2629,7 @@ again: vma = vmac->vma; /* Ignore the stable/unstable/sqnr flags */ - addr = rmap_item->address & ~KSM_FLAG_MASK; + addr = rmap_item->address & PAGE_MASK; if (addr < vma->vm_start || addr >= vma->vm_end) continue; |