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mm/zsmalloc.c: remove confusing code in obj_free()
Patch series "Cleanup for zsmalloc". This series contains cleanups to remove confusing code in obj_free(), combine two atomic ops and improve readability for async_free_zspage(). More details can be found in the respective changelogs. This patch (of 2): OBJ_ALLOCATED_TAG is only set for handle to indicate allocated object. It's irrelevant with obj. So remove this misleading code to improve readability. Link: https://lkml.kernel.org/r/20210624123930.1769093-1-linmiaohe@huawei.com Link: https://lkml.kernel.org/r/20210624123930.1769093-2-linmiaohe@huawei.com Signed-off-by: Miaohe Lin <linmiaohe@huawei.com> Cc: Minchan Kim <minchan@kernel.org> Cc: Nitin Gupta <ngupta@vflare.org> Cc: Sergey Senozhatsky <senozhatsky@chromium.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -1471,7 +1471,6 @@ static void obj_free(struct size_class *class, unsigned long obj)
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unsigned int f_objidx;
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void *vaddr;
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obj &= ~OBJ_ALLOCATED_TAG;
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obj_to_location(obj, &f_page, &f_objidx);
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f_offset = (class->size * f_objidx) & ~PAGE_MASK;
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zspage = get_zspage(f_page);
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