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bh=Qy1FeeBzrxZiAE9Dbw2XUeMAGFBesYq4foIo8DThKcA=; b=LBQznp3IfNfoZ50GFiHtAUo+cCzUFlRP19g8ymHbWJAh6aMVKdB83UjVIGx2561i3bzJO6 d3p/Xhp5URYD1uDA== 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 47C7013DAC; Thu, 5 Aug 2021 15:20:08 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id MO7uEKgBDGFDdQAAMHmgww (envelope-from ); Thu, 05 Aug 2021 15:20:08 +0000 From: Vlastimil Babka To: Andrew Morton , Christoph Lameter , David Rientjes , Pekka Enberg , Joonsoo Kim Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, Mike Galbraith , Sebastian Andrzej Siewior , Thomas Gleixner , Mel Gorman , Jesper Dangaard Brouer , Jann Horn , Vlastimil Babka Subject: [PATCH v4 23/35] mm, slub: discard slabs in unfreeze_partials() without irqs disabled Date: Thu, 5 Aug 2021 17:19:48 +0200 Message-Id: <20210805152000.12817-24-vbabka@suse.cz> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210805152000.12817-1-vbabka@suse.cz> References: <20210805152000.12817-1-vbabka@suse.cz> MIME-Version: 1.0 Authentication-Results: imf30.hostedemail.com; dkim=pass header.d=suse.cz header.s=susede2_rsa header.b=MaBLV8Q3; dkim=pass header.d=suse.cz header.s=susede2_ed25519 header.b=LBQznp3I; spf=pass (imf30.hostedemail.com: domain of vbabka@suse.cz designates 195.135.220.29 as permitted sender) smtp.mailfrom=vbabka@suse.cz; dmarc=none X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: 6FB03E00305C X-Stat-Signature: pe39ascx6b6dap1bnub4u9xxfpshgkmc X-HE-Tag: 1628176809-259243 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: No need for disabled irqs when discarding slabs, so restore them before discarding. Signed-off-by: Vlastimil Babka --- mm/slub.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/mm/slub.c b/mm/slub.c index 51f8d83d3ea8..4d60bf482735 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -2389,6 +2389,8 @@ static void unfreeze_partials(struct kmem_cache *s, if (n) spin_unlock(&n->list_lock); + local_irq_restore(flags); + while (discard_page) { page = discard_page; discard_page = discard_page->next; @@ -2398,7 +2400,6 @@ static void unfreeze_partials(struct kmem_cache *s, stat(s, FREE_SLAB); } - local_irq_restore(flags); #endif /* CONFIG_SLUB_CPU_PARTIAL */ }