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mm/zsmalloc: introduce __zpdesc_clear/set_zsmalloc()

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Add helper __zpdesc_clear_zsmalloc() for __ClearPageZsmalloc(),
__zpdesc_set_zsmalloc() for __SetPageZsmalloc(), and use them in callers.

[42.hyeyoo@gmail.com: keep reset_zpdesc() to use struct page]
Link: https://lkml.kernel.org/r/20241216150450.1228021-19-42.hyeyoo@gmail.com
Signed-off-by: Alex Shi <alexs@kernel.org>
Signed-off-by: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Acked-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Tested-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Vishal Moola (Oracle) <vishal.moola@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Alex Shi 2024-12-17 00:04:49 +09:00 • committed by Andrew Morton
parent fc5eec0d8c
commit b5f469a140
2 changed files with 13 additions and 3 deletions
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10
mm/zpdesc.h
View file

@ -155,6 +155,16 @@ static inline void __zpdesc_set_movable(struct zpdesc *zpdesc,
__SetPageMovable(zpdesc_page(zpdesc), mops);
}
static inline void __zpdesc_set_zsmalloc(struct zpdesc *zpdesc)
{
__SetPageZsmalloc(zpdesc_page(zpdesc));
}
static inline void __zpdesc_clear_zsmalloc(struct zpdesc *zpdesc)
{
__ClearPageZsmalloc(zpdesc_page(zpdesc));
}
static inline bool zpdesc_is_isolated(struct zpdesc *zpdesc)
{
return PageIsolated(zpdesc_page(zpdesc));

6
mm/zsmalloc.c
View file

@ -1001,13 +1001,13 @@ static struct zspage *alloc_zspage(struct zs_pool *pool,
if (!zpdesc) {
while (--i >= 0) {
zpdesc_dec_zone_page_state(zpdescs[i]);
__ClearPageZsmalloc(zpdesc_page(zpdescs[i]));
__zpdesc_clear_zsmalloc(zpdescs[i]);
free_zpdesc(zpdescs[i]);
}
cache_free_zspage(pool, zspage);
return NULL;
}
__SetPageZsmalloc(zpdesc_page(zpdesc));
__zpdesc_set_zsmalloc(zpdesc);
zpdesc_inc_zone_page_state(zpdesc);
zpdescs[i] = zpdesc;
@ -1786,7 +1786,7 @@ static int zs_page_migrate(struct page *newpage, struct page *page,
VM_BUG_ON_PAGE(!zpdesc_is_isolated(zpdesc), zpdesc_page(zpdesc));
/* We're committed, tell the world that this is a Zsmalloc page. */
__SetPageZsmalloc(zpdesc_page(newzpdesc));
__zpdesc_set_zsmalloc(newzpdesc);
/* The page is locked, so this pointer must remain valid */
zspage = get_zspage(zpdesc);