From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.220.28]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2DE292C9C for ; Tue, 4 Jan 2022 00:10:57 +0000 (UTC) Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out1.suse.de (Postfix) with ESMTPS id 9D61E212B9; Tue, 4 Jan 2022 00:10:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_rsa; t=1641255055; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=IIGkt9cOdj1PA8Pj7JiUWe1yTq0hQSv8VDmPdrbo2KA=; b=h6Zmn1cLAo3PAW76Ql6oj7Gwfc7JJ7jV10i7a+gtNdglHivTfP0fLi3bjx5tmmb8TXCF64 8sTCd4WnApuyd9TG7yyQz8HJya3NWOsBmnDyj6mDa+6dOOXSCmvkLcTSZfHmDgxnR0EZ7m fh9I3iRN/nGIc2Uoxf9l9xROycYxmzs= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.cz; s=susede2_ed25519; t=1641255055; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=IIGkt9cOdj1PA8Pj7JiUWe1yTq0hQSv8VDmPdrbo2KA=; b=+zf7nxDoQym4g0sOn425tBAr+6VHZy5Gg/RjHelSkoHmymBT/ZVjlFtB1OCzcdhrNBdCtU VwHAH44UlwmAHyDw== Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id 740D0139EE; Tue, 4 Jan 2022 00:10:55 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id yNq5G4+Q02FEQwAAMHmgww (envelope-from ); Tue, 04 Jan 2022 00:10:55 +0000 From: Vlastimil Babka To: Matthew Wilcox , Christoph Lameter , David Rientjes , Joonsoo Kim , Pekka Enberg Cc: linux-mm@kvack.org, Andrew Morton , Johannes Weiner , Roman Gushchin , Hyeonggon Yoo <42.hyeyoo@gmail.com>, patches@lists.linux.dev, Vlastimil Babka Subject: [PATCH v4 15/32] mm/slub: Convert __free_slab() to use struct slab Date: Tue, 4 Jan 2022 01:10:29 +0100 Message-Id: <20220104001046.12263-16-vbabka@suse.cz> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220104001046.12263-1-vbabka@suse.cz> References: <20220104001046.12263-1-vbabka@suse.cz> Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=2600; h=from:subject; bh=m9gRxYsC3O4yHQ0l9BXq01ApF6BKbBtUKy1ILt9Fuwk=; b=owGbwMvMwMH4QPFU8cfOlQKMp9WSGBIvTyibn67LupzRbb/5loct3Vtksi9YN24vmnT0ccZ1Z9VM +ZcmnYzGLAyMHAyyYoosvd6TGVeaPpbY5xF3BmYQKxPIFAYuTgGYCIsq+z+dNU4htvpie1lb59x99z T3jR2Pl4sNW5jhX5dIN7t5Jd2a+y55LoxmkBPt1g5f/UEv7ijjjFf5jnIfNszjYu1d/+6++tN2u/9s QrUephc89FwCp0iscdm9YVNPrHfBn76XcXdWVuRLZK/Vuvfg/KQk/yn/n8muZw+8x6nWedxy3qGoOX onX3CVu01+O/Hr5FdcpsyqEUG2/rkRP3i9OTbWFOq4nvmu3GoZVyum474xbsvS264vExYyKm5z/Ph/ /6aTq6TDF+Y/mfP1/dTND0u1xNbtK5POW8q+vttLtJpJT9jNrvRbnY/RnbfJrJyNnxl2B5QnRd2XXf 1Hre62gkVWdJZVn3blE3NxrzRWAA== X-Developer-Key: i=vbabka@suse.cz; a=openpgp; fpr=A940D434992C2E8E99103D50224FA7E7CC82A664 Content-Transfer-Encoding: 8bit __free_slab() is on the boundary of distinguishing struct slab and struct page so start with struct slab but convert to folio for working with flags and folio_page() to call functions that require struct page. Signed-off-by: Vlastimil Babka Reviewed-by: Roman Gushchin Reviewed-by: Hyeonggon Yoo <42.hyeyoo@gmail.com> Tested-by: Hyeonggon Yoo <42.hyeyoo@gmail.com> --- mm/slub.c | 27 +++++++++++++-------------- 1 file changed, 13 insertions(+), 14 deletions(-) diff --git a/mm/slub.c b/mm/slub.c index 65cbdeae7edb..4d64c5b42629 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -2005,35 +2005,34 @@ static struct page *new_slab(struct kmem_cache *s, gfp_t flags, int node) flags & (GFP_RECLAIM_MASK | GFP_CONSTRAINT_MASK), node); } -static void __free_slab(struct kmem_cache *s, struct page *page) +static void __free_slab(struct kmem_cache *s, struct slab *slab) { - int order = compound_order(page); + struct folio *folio = slab_folio(slab); + int order = folio_order(folio); int pages = 1 << order; if (kmem_cache_debug_flags(s, SLAB_CONSISTENCY_CHECKS)) { void *p; - slab_pad_check(s, page); - for_each_object(p, s, page_address(page), - page->objects) - check_object(s, page, p, SLUB_RED_INACTIVE); + slab_pad_check(s, folio_page(folio, 0)); + for_each_object(p, s, slab_address(slab), slab->objects) + check_object(s, folio_page(folio, 0), p, SLUB_RED_INACTIVE); } - __ClearPageSlabPfmemalloc(page); - __ClearPageSlab(page); - /* In union with page->mapping where page allocator expects NULL */ - page->slab_cache = NULL; + __slab_clear_pfmemalloc(slab); + __folio_clear_slab(folio); + folio->mapping = NULL; if (current->reclaim_state) current->reclaim_state->reclaimed_slab += pages; - unaccount_slab(page_slab(page), order, s); - __free_pages(page, order); + unaccount_slab(slab, order, s); + __free_pages(folio_page(folio, 0), order); } static void rcu_free_slab(struct rcu_head *h) { struct page *page = container_of(h, struct page, rcu_head); - __free_slab(page->slab_cache, page); + __free_slab(page->slab_cache, page_slab(page)); } static void free_slab(struct kmem_cache *s, struct page *page) @@ -2041,7 +2040,7 @@ static void free_slab(struct kmem_cache *s, struct page *page) if (unlikely(s->flags & SLAB_TYPESAFE_BY_RCU)) { call_rcu(&page->rcu_head, rcu_free_slab); } else - __free_slab(s, page); + __free_slab(s, page_slab(page)); } static void discard_slab(struct kmem_cache *s, struct page *page) -- 2.34.1