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[2a03:2880:ff:14::face:b00c]) by smtp.gmail.com with ESMTPSA id a4-20020a170902ecc400b00180a7ff78ccsm14790814plh.126.2022.11.23.11.17.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 23 Nov 2022 11:17:07 -0800 (PST) From: Nhat Pham To: akpm@linux-foundation.org Cc: hannes@cmpxchg.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, minchan@kernel.org, ngupta@vflare.org, senozhatsky@chromium.org, sjenning@redhat.com, ddstreet@ieee.org, vitaly.wool@konsulko.com Subject: [PATCH v6 6/6] zsmalloc: Implement writeback mechanism for zsmalloc (fix) Date: Wed, 23 Nov 2022 11:17:03 -0800 Message-Id: <20221123191703.2902079-3-nphamcs@gmail.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20221123191703.2902079-1-nphamcs@gmail.com> References: <20221123191703.2902079-1-nphamcs@gmail.com> MIME-Version: 1.0 ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1669231028; a=rsa-sha256; cv=none; b=zdfRmlelIqoqWB5cy0OUVYsZuuZeah9GnbL0JfIjVE0QNU/opK8rFI4CMc0dEfr3KUCCR+ L3eMFdJeFb3vXCeI/bnQFQAjtIqKBKzMzg8y/Arwrca2KMHDWFmSnmfXzpp1EwZ6+mh68V jdnGtnCXDUcngPXDz3zd+fNDtreOddg= ARC-Authentication-Results: i=1; imf04.hostedemail.com; dkim=pass header.d=gmail.com header.s=20210112 header.b=ixSC8hDn; spf=pass (imf04.hostedemail.com: domain of nphamcs@gmail.com designates 209.85.214.178 as permitted sender) smtp.mailfrom=nphamcs@gmail.com; dmarc=pass (policy=none) header.from=gmail.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1669231028; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=ruO+YinHt02cD7LDLng29WAK5pZvQbCFBqvYCl3hrTY=; b=6x+xAL+uM7yl8K6zFcY01cb1qU+3f+xt8NFOjLkTTcYo7mI2j4FqMQ/iGGcWhuoRxH84+t /r/Wt1OQs4CbsCWAE6zDW7ddDT1l+R34fkOiNBNFEimdj8Wed0/2kf93V8eWwg/QTH87sw Jx6/5mrClOFNrYFnKarpP8Fe6zlerio= X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: 877DE40009 Authentication-Results: imf04.hostedemail.com; dkim=pass header.d=gmail.com header.s=20210112 header.b=ixSC8hDn; spf=pass (imf04.hostedemail.com: domain of nphamcs@gmail.com designates 209.85.214.178 as permitted sender) smtp.mailfrom=nphamcs@gmail.com; dmarc=pass (policy=none) header.from=gmail.com X-Rspam-User: X-Stat-Signature: g1cp18sc4bnnmbx6wg718j7xofnjhu3z X-HE-Tag: 1669231028-498235 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000023, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Use get_first_page(), and add cond_resched() in retry loop. Signed-off-by: Nhat Pham Suggested-by: Sergey Senozhatsky --- mm/zsmalloc.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) -- 2.30.2 diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c index e2bd41f37b5b..ab4fa17a0fad 100644 --- a/mm/zsmalloc.c +++ b/mm/zsmalloc.c @@ -2488,12 +2488,13 @@ static int zs_reclaim_page(struct zs_pool *pool, unsigned int retries) remove_zspage(class, zspage, fullness); spin_unlock(&pool->lock); + cond_resched(); /* Lock backing pages into place */ lock_zspage(zspage); obj_idx = 0; - page = zspage->first_page; + page = get_first_page(zspage); while (1) { handle = find_alloced_obj(class, page, &obj_idx); if (!handle) {