[PATCH v2 06/33] mm: Convert virt_to_cache() to use struct slab

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



From: "Matthew Wilcox (Oracle)" <willy@xxxxxxxxxxxxx>

This function is entirely self-contained, so can be converted from
page to slab.

Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Signed-off-by: Vlastimil Babka <vbabka@xxxxxxx>
---
 mm/slab.h | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/mm/slab.h b/mm/slab.h
index dd3f72fddff6..1408ada9ff72 100644
--- a/mm/slab.h
+++ b/mm/slab.h
@@ -574,13 +574,13 @@ static inline void memcg_slab_free_hook(struct kmem_cache *s,
 
 static inline struct kmem_cache *virt_to_cache(const void *obj)
 {
-	struct page *page;
+	struct slab *slab;
 
-	page = virt_to_head_page(obj);
-	if (WARN_ONCE(!PageSlab(page), "%s: Object is not a Slab page!\n",
+	slab = virt_to_slab(obj);
+	if (WARN_ONCE(!slab, "%s: Object is not a Slab page!\n",
 					__func__))
 		return NULL;
-	return page->slab_cache;
+	return slab->slab_cache;
 }
 
 static __always_inline void account_slab(struct slab *slab, int order,
-- 
2.33.1





[Index of Archives]     [Linux ARM Kernel]     [Linux ARM]     [Linux Omap]     [Fedora ARM]     [IETF Annouce]     [Bugtraq]     [Linux OMAP]     [Linux MIPS]     [eCos]     [Asterisk Internet PBX]     [Linux API]

  Powered by Linux