The patch titled Subject: slab: do not call compound_head() in page_get_cache() has been added to the -mm tree. Its filename is slab-do-not-call-compound_head-in-page_get_cache.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/SubmitChecklist when testing your code *** The -mm tree is included into linux-next and is updated there every 3-4 working days ------------------------------------------------------ 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 @@ -485,7 +485,6 @@ 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; } _ Subject: Subject: slab: do not call compound_head() in page_get_cache() Patches currently in -mm which might be from walken@xxxxxxxxxx are slab-do-not-call-compound_head-in-page_get_cache.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html