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mm: ksm: fix a typo in comment "alreaady"->"already"

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There is a typo in comment, fix it.

Signed-off-by: Ethon Paul <ethp@qq.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Ralph Campbell <rcampbell@nvidia.com>
Link: http://lkml.kernel.org/r/20200410162427.13927-1-ethp@qq.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Ethon Paul 2020-06-04 16:49:01 -07:00 committed by Linus Torvalds
parent 52cfc24578
commit 457aef949d
1 changed files with 5 additions and 5 deletions
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10
mm/ksm.c
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@ -612,7 +612,7 @@ static struct stable_node *alloc_stable_node_chain(struct stable_node *dup,
* Move the old stable node to the second dimension
* queued in the hlist_dup. The invariant is that all
* dup stable_nodes in the chain->hlist point to pages
* that are wrprotected and have the exact same
* that are write protected and have the exact same
* content.
*/
stable_node_chain_add_dup(dup, chain);
@ -1148,7 +1148,7 @@ static int replace_page(struct vm_area_struct *vma, struct page *page,
/*
* No need to check ksm_use_zero_pages here: we can only have a
* zero_page here if ksm_use_zero_pages was enabled alreaady.
* zero_page here if ksm_use_zero_pages was enabled already.
*/
if (!is_zero_pfn(page_to_pfn(kpage))) {
get_page(kpage);
@ -1608,7 +1608,7 @@ again:
* continue. All KSM pages belonging to the
* stable_node dups in a stable_node chain
* have the same content and they're
* wrprotected at all times. Any will work
* write protected at all times. Any will work
* fine to continue the walk.
*/
tree_page = get_ksm_page(stable_node_any,
@ -1843,7 +1843,7 @@ again:
* continue. All KSM pages belonging to the
* stable_node dups in a stable_node chain
* have the same content and they're
* wrprotected at all times. Any will work
* write protected at all times. Any will work
* fine to continue the walk.
*/
tree_page = get_ksm_page(stable_node_any,
@ -2001,7 +2001,7 @@ static void stable_tree_append(struct rmap_item *rmap_item,
* duplicate. page_migration could break later if rmap breaks,
* so we can as well crash here. We really need to check for
* rmap_hlist_len == STABLE_NODE_CHAIN, but we can as well check
* for other negative values as an undeflow if detected here
* for other negative values as an underflow if detected here
* for the first time (and not when decreasing rmap_hlist_len)
* would be sign of memory corruption in the stable_node.
*/