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mm/zsmalloc.c: rework the list_add code in insert_zspage() 

Rework the list_add code to make it more readable and simple.

Link: https://lkml.kernel.org/r/20201015130107.65195-1-linmiaohe@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Acked-by: Minchan Kim <minchan@kernel.org>
Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Miaohe Lin 2020-12-14 19:14:22 -08:00 committed by Linus Torvalds
parent 1ec3b5fe6e
commit 110ceb8287
1 changed files with 4 additions and 7 deletions
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7
mm/zsmalloc.c
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@ -726,12 +726,9 @@ static void insert_zspage(struct size_class *class,
* We want to see more ZS_FULL pages and less almost empty/full. * We want to see more ZS_FULL pages and less almost empty/full.
* Put pages with higher ->inuse first. * Put pages with higher ->inuse first.
*/ */
if (head) { if (head && get_zspage_inuse(zspage) < get_zspage_inuse(head))
if (get_zspage_inuse(zspage) < get_zspage_inuse(head)) {
list_add(&zspage->list, &head->list); list_add(&zspage->list, &head->list);
return; else
}
}
list_add(&zspage->list, &class->fullness_list[fullness]); list_add(&zspage->list, &class->fullness_list[fullness]);
} }