The patch titled
Subject: slab: do not call compound_head() in page_get_cache()
has been removed from the -mm tree. Its filename was
slab-do-not-call-compound_head-in-page_get_cache.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Michel Lespinasse <walken@xxxxxxxxxx>
Subject: slab: do not call compound_head() in page_get_cache()
page_get_cache() does not need to call compound_head(), as its unique
caller virt_to_slab() already makes sure to return a head page.
Additionally, removing the compound_head() call makes page_get_cache()
consistent with page_get_slab().
Signed-off-by: Michel Lespinasse <walken@xxxxxxxxxx>
Cc: Christoph Lameter <cl@xxxxxxxxxxxxxxxxxxxx>
Cc: Pekka Enberg <penberg@xxxxxxxxxx>
Acked-by: David Rientjes <rientjes@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/slab.c | 1 -
1 file changed, 1 deletion(-)
diff -puN mm/slab.c~slab-do-not-call-compound_head-in-page_get_cache mm/slab.c
--- a/mm/slab.c~slab-do-not-call-compound_head-in-page_get_cache
+++ a/mm/slab.c
@@ -517,7 +517,6 @@ static bool slab_max_order_set __initdat
static inline struct kmem_cache *page_get_cache(struct page *page)
{
- page = compound_head(page);
BUG_ON(!PageSlab(page));
return page->slab_cache;
}
_
Patches currently in -mm which might be from walken@xxxxxxxxxx are
linux-next.patch
ipc-mqueue-remove-unnecessary-rb_init_node-calls.patch
rbtree-reference-documentation-rbtreetxt-for-usage-instructions.patch
rbtree-empty-nodes-have-no-color.patch
rbtree-empty-nodes-have-no-color-fix.patch
rbtree-fix-incorrect-rbtree-node-insertion-in-fs-proc-proc_sysctlc.patch
rbtree-move-some-implementation-details-from-rbtreeh-to-rbtreec.patch
rbtree-move-some-implementation-details-from-rbtreeh-to-rbtreec-fix.patch
rbtree-performance-and-correctness-test.patch
rbtree-performance-and-correctness-test-fix.patch
rbtree-break-out-of-rb_insert_color-loop-after-tree-rotation.patch
rbtree-adjust-root-color-in-rb_insert_color-only-when-necessary.patch
rbtree-adjust-root-color-in-rb_insert_color-only-when-necessary-fix-perf-compilation.patch
rbtree-low-level-optimizations-in-rb_insert_color.patch
rbtree-adjust-node-color-in-__rb_erase_color-only-when-necessary.patch
rbtree-optimize-case-selection-logic-in-__rb_erase_color.patch
rbtree-low-level-optimizations-in-__rb_erase_color.patch
rbtree-coding-style-adjustments.patch
rbtree-optimize-fetching-of-sibling-node.patch
--
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