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[172.10.233.147]) by smtp.gmail.com with ESMTPSA id 00721157ae682-8714b62503dsm108473437b3.38.2026.09.09.03.23.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 09 Sep 2026 03:23:05 -0700 (PDT) Date: Wed, 9 Sep 2026 03:23:00 -0700 (PDT) From: Hugh Dickins To: Andrew Morton cc: Ackerley Tng , Alexander Viro , Alexandre Ghiti , 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 v2 20/26] s390/fbatch: no lru_add_drain_all() in s390_wiggle_split_folio() In-Reply-To: Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: E72CD20009 X-Rspam-User: X-Stat-Signature: pb7j87oshokqwuyi6exmmhc5ddr4bdb9 X-HE-Tag: 1788949388-407647 X-HE-Meta: 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 TgUpnXsm TO+s29eM+p6O3narh9JfpIs8geTrFSlROXDRFuMufBzlJ/BOyevDQwbmE/adkYaGi3lwKfHhy7aCvbp/L/e2YI6vB/uZni6ian180H175CC7rfhqRVOECncLsLdl3cFBmJ7m61GZkGXZl8R7D8TF/PacQyY+sdHT84Ok8nyvul7/WDTeGADxHaiwAu0rknFMRvax2V9EvuOZH3D27UrQPhp9VzLE7mvHPpo03SrW4LFuBcn7AZyIrAyTHguN6U6kUICDQe9lhmUbcRHEmLqTgyMmfhDBwgFADP0ycw7iQxscflOFoh5FweRey0IPpfu7GrUoYtsF8/AO7XERkHJ5+5M+FgxhyZR62uYkc5S2ggj0yeqfbN/Imr0E5dOmjzNgN0wDk5Hq1UpBOFK7DrAOwFhC4BlNlyPVPXzaMe792SBsf6LINYpvsYXPuZjZt/PUEU2lSiy32FrrPxRti0qY6O1bzJCfOdGpsIsPj 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