Commit 457aef94 authored by Ethon Paul's avatar Ethon Paul Committed by Linus Torvalds
Browse files

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



There is a typo in comment, fix it.

Signed-off-by: default avatarEthon Paul <ethp@qq.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Reviewed-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Reviewed-by: default avatarRalph Campbell <rcampbell@nvidia.com>
Link: http://lkml.kernel.org/r/20200410162427.13927-1-ethp@qq.com


Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 52cfc245

mm/ksm.c

+5 −5
Original line number Diff line number Diff line
@@ -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 @@ static struct page *stable_tree_search(struct page *page) 
			 * 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 @@ static struct stable_node *stable_tree_insert(struct page *kpage) 
			 * 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.

	 */