The patch titled
Subject: mm/ksm.c: use list_for_each_entry_safe
has been added to the -mm tree. Its filename is
mm-ksmc-use-list_for_each_entry_safe.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-ksmc-use-list_for_each_entry_safe.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-ksmc-use-list_for_each_entry_safe.patch
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------------------------------------------------------
From: Geliang Tang <geliangtang@xxxxxxx>
Subject: mm/ksm.c: use list_for_each_entry_safe
Use list_for_each_entry_safe() instead of list_for_each_safe() to simplify
the code.
Signed-off-by: Geliang Tang <geliangtang@xxxxxxx>
Cc: Hugh Dickins <hughd@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/ksm.c | 20 +++++++-------------
1 file changed, 7 insertions(+), 13 deletions(-)
diff -puN mm/ksm.c~mm-ksmc-use-list_for_each_entry_safe mm/ksm.c
--- a/mm/ksm.c~mm-ksmc-use-list_for_each_entry_safe
+++ a/mm/ksm.c
@@ -740,8 +740,7 @@ static int remove_stable_node(struct sta
static int remove_all_stable_nodes(void)
{
- struct stable_node *stable_node;
- struct list_head *this, *next;
+ struct stable_node *stable_node, *next;
int nid;
int err = 0;
@@ -756,8 +755,7 @@ static int remove_all_stable_nodes(void)
cond_resched();
}
}
- list_for_each_safe(this, next, &migrate_nodes) {
- stable_node = list_entry(this, struct stable_node, list);
+ list_for_each_entry_safe(stable_node, next, &migrate_nodes, list) {
if (remove_stable_node(stable_node))
err = -EBUSY;
cond_resched();
@@ -1583,13 +1581,11 @@ static struct rmap_item *scan_get_next_r
* so prune them once before each full scan.
*/
if (!ksm_merge_across_nodes) {
- struct stable_node *stable_node;
- struct list_head *this, *next;
+ struct stable_node *stable_node, *next;
struct page *page;
- list_for_each_safe(this, next, &migrate_nodes) {
- stable_node = list_entry(this,
- struct stable_node, list);
+ list_for_each_entry_safe(stable_node, next,
+ &migrate_nodes, list) {
page = get_ksm_page(stable_node, false);
if (page)
put_page(page);
@@ -2012,8 +2008,7 @@ static void wait_while_offlining(void)
static void ksm_check_stable_tree(unsigned long start_pfn,
unsigned long end_pfn)
{
- struct stable_node *stable_node;
- struct list_head *this, *next;
+ struct stable_node *stable_node, *next;
struct rb_node *node;
int nid;
@@ -2034,8 +2029,7 @@ static void ksm_check_stable_tree(unsign
cond_resched();
}
}
- list_for_each_safe(this, next, &migrate_nodes) {
- stable_node = list_entry(this, struct stable_node, list);
+ list_for_each_entry_safe(stable_node, next, &migrate_nodes, list) {
if (stable_node->kpfn >= start_pfn &&
stable_node->kpfn < end_pfn)
remove_node_from_stable_tree(stable_node);
_
Patches currently in -mm which might be from geliangtang@xxxxxxx are
fsnotify-use-list_next_entry-in-fsnotify_unmount_inodes.patch
mm-slab-use-list_first_entry_or_null.patch
mm-slab-use-list_for_each_entry-in-cache_flusharray.patch
mm-slabc-add-a-helper-function-get_first_slab.patch
mm-vmalloc-use-list_nextfirst_entry.patch
mm-thp-use-list_first_entry_or_null.patch
mm-page_allocc-use-list_firstlast_entry-instead-of-list_entry.patch
mm-page_allocc-use-list_for_each_entry-in-mark_free_pages.patch
mm-swapfilec-use-list_nextfirst_entry.patch
mm-readaheadc-mm-vmscanc-use-lru_to_page-instead-of-list_to_page.patch
mm-ksmc-use-list_for_each_entry_safe.patch
mm-zbud-use-list_last_entry-instead-of-list_tail_entry.patch
dma-mapping-use-offset_in_page-macro.patch
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