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[172.10.233.147]) by smtp.gmail.com with ESMTPSA id 00721157ae682-84ca5188982sm35471097b3.10.2026.08.24.07.39.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 24 Aug 2026 07:39:16 -0700 (PDT) Date: Mon, 24 Aug 2026 07:39:12 -0700 (PDT) From: Hugh Dickins To: Andrew Morton cc: Ackerley Tng , Alexander Viro , Baolin Wang , Barry Song , Binbin Wu , Christian Brauner , Christoph Hellwig , Christoph Lameter , Claudio Imbrenda , David Hildenbrand , JP Kobryn , Jan Kara , Jens Axboe , Johannes Weiner , Kairui Song , Kiryl Shutsemau , Lance Yang , Leonardo Bras , Lorenzo Stoakes , Marcelo Tosatti , Matthew Wilcox , Mel Gorman , Miaohe Lin , Michal Hocko , Minchan Kim , Muchun Song , Oscar Salvador , Peter Zijlstra , Qi Zheng , Rik van Riel , Sebastian Andrzej Siewior , Shakeel Butt , Suren Baghdasaryan , Vlastimil Babka , Yang Shi , Yu Zhao , Zach O'Keefe , Zi Yan , linux-block@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [PATCH 20/25] s390/fbatch: no lru_add_drain_all() in s390_wiggle_split_folio() In-Reply-To: <14a16945-529b-8bc0-ab38-3ea97e54e223@google.com> Message-ID: <7bf68e7b-f88c-6ca9-39ab-e9fedab0c8be@google.com> References: <14a16945-529b-8bc0-ab38-3ea97e54e223@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII X-Stat-Signature: ztihbi6rsh3aoktysmsr65sj7wj58g7z X-Rspamd-Queue-Id: B318C40005 X-Rspamd-Server: rspam03 X-Rspam-User: X-HE-Tag: 1787582358-922134 X-HE-Meta: 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 C3PMaJ24 IOQoNbEeRxT+pL9q1Fh7JQWqcjXZ+aG5KJQNxdt6CbnMkF3oT5sOTyCMxg9DaP1Tgr9SJrwf4DivHK8ZK+/kqVaT7yfBKUIRGMtXmoe59iQ5S7YZlDCj21MSkWZpSIOu0Up1TkJ3QXtLGYdFbXh9aJEhKEgaXyn96Nu7iMC9Juf1lVchnwU2oCrvyiyh5iDHSEgKgjXUN2numcQvpPr5olscNRHapL//n7w8YqcpY+vFbL1tBvPMSVFWgru1IjodQbOvAdo8gCQiTcoqZx9K0oIBeeuUbRvjc8T0cTyYjd13JyNFc5t89dAdFpTfkEx97vNGSVwvnn4Dsee/r03tZlKBuMjNmX7AgEe0KA+Delv1FgEOOr/JukPIx1PiGOqp8sbwYrxJlmossW8YOSfr7vnshEnX3Zk4yb4y59tPPKmSAk+FBAIZArd5ckjZ4SUOhLPJNsd5tDtugLSWebvcwEIi+6TtxtJnPBnp7 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: s390_wiggle_split_folio() has no good reason to lru_add_drain_all(), now that the per-cpu fbatch references are gone. Signed-off-by: Hugh Dickins --- arch/s390/kernel/uv.c | 1 - 1 file changed, 1 deletion(-) diff --git a/arch/s390/kernel/uv.c b/arch/s390/kernel/uv.c index dc14ebc0105b..120a467026a5 100644 --- a/arch/s390/kernel/uv.c +++ b/arch/s390/kernel/uv.c @@ -364,7 +364,6 @@ int s390_wiggle_split_folio(struct mm_struct *mm, struct folio *folio) lockdep_assert_not_held(&mm->mmap_lock); folio_wait_writeback(folio); - lru_add_drain_all(); if (!folio_test_large(folio)) return 0; -- 2.51.0