github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-29 17:43:52 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

mm/zsmalloc: convert __free_zspage() to use zpdesc

Browse Source 
Introduce zpdesc_is_locked() and convert __free_zspage() to use zpdesc.

Link: https://lkml.kernel.org/r/20241216150450.1228021-13-42.hyeyoo@gmail.com
Signed-off-by: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Signed-off-by: Alex Shi <alexs@kernel.org>
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:
Hyeonggon Yoo 2024-12-17 00:04:43 +09:00 committed by Andrew Morton
parent 73349afa00
commit 7f0b0c6642
2 changed files with 14 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
mm/zpdesc.h
View File

@ -165,4 +165,8 @@ static inline struct zone *zpdesc_zone(struct zpdesc *zpdesc)
return page_zone(zpdesc_page(zpdesc));
}
static inline bool zpdesc_is_locked(struct zpdesc *zpdesc)
{
return folio_test_locked(zpdesc_folio(zpdesc));
}
#endif

20
mm/zsmalloc.c
View File

@ -878,23 +878,23 @@ static int trylock_zspage(struct zspage *zspage)
static void __free_zspage(struct zs_pool *pool, struct size_class *class,
struct zspage *zspage)
{
struct page *page, *next;
struct zpdesc *zpdesc, *next;
assert_spin_locked(&class->lock);
VM_BUG_ON(get_zspage_inuse(zspage));
VM_BUG_ON(zspage->fullness != ZS_INUSE_RATIO_0);
next = page = get_first_page(zspage);
next = zpdesc = get_first_zpdesc(zspage);
do {
VM_BUG_ON_PAGE(!PageLocked(page), page);
next = get_next_page(page);
reset_zpdesc(page_zpdesc(page));
unlock_page(page);
dec_zone_page_state(page, NR_ZSPAGES);
put_page(page);
page = next;
} while (page != NULL);
VM_BUG_ON_PAGE(!zpdesc_is_locked(zpdesc), zpdesc_page(zpdesc));
next = get_next_zpdesc(zpdesc);
reset_zpdesc(zpdesc);
zpdesc_unlock(zpdesc);
zpdesc_dec_zone_page_state(zpdesc);
zpdesc_put(zpdesc);
zpdesc = next;
} while (zpdesc != NULL);
cache_free_zspage(pool, zspage);