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Mon, 6 Apr 2020 23:08:23 -0400 (EDT) Delivered-To: linux-mm-outgoing@kvack.org Received: by kanga.kvack.org (Postfix, from userid 40) id D61108E0001; Mon, 6 Apr 2020 23:08:23 -0400 (EDT) X-Original-To: int-list-linux-mm@kvack.org X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id C77848E0057; Mon, 6 Apr 2020 23:08:23 -0400 (EDT) X-Original-To: linux-mm@kvack.org X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0115.hostedemail.com [216.40.44.115]) by kanga.kvack.org (Postfix) with ESMTP id ABDAA8E0001 for ; Mon, 6 Apr 2020 23:08:23 -0400 (EDT) Received: from smtpin03.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with ESMTP id 8146B180AD806 for ; Tue, 7 Apr 2020 03:08:23 +0000 (UTC) X-FDA: 76679575686.03.desk31_837171b019e3a X-Spam-Summary: 2,0,0,898b8ad385c0be16,d41d8cd98f00b204,akpm@linux-foundation.org,,RULES_HIT:41:355:379:800:960:967:973:988:989:1260:1263:1345:1359:1381:1431:1437:1534:1541:1711:1714:1730:1747:1777:1792:2393:2525:2559:2563:2682:2685:2859:2902:2933:2937:2939:2942:2945:2947:2951:2954:3022:3138:3139:3140:3141:3142:3351:3865:3870:3871:3934:3936:3938:3941:3944:3947:3950:3953:3956:3959:4321:5007:6119:6261:6653:7514:7576:7875:8599:9025:9545:10004:10913:11026:11658:11914:12043:12048:12297:12517:12519:12555:12679:12783:12986:13069:13161:13229:13311:13357:13846:14094:14181:14384:14721:14849:21080:21433:21451:21627:21939:30054,0,RBL:198.145.29.99:@linux-foundation.org:.lbl8.mailshell.net-64.100.201.201 62.2.0.100,CacheIP:none,Bayesian:0.5,0.5,0.5,Netcheck:none,DomainCache:0,MSF:not bulk,SPF:fp,MSBL:0,DNSBL:neutral,Custom_rules:0:0:0,LFtime:3,LUA_SUMMARY:none X-HE-Tag: desk31_837171b019e3a X-Filterd-Recvd-Size: 2417 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf31.hostedemail.com (Postfix) with ESMTP for ; Tue, 7 Apr 2020 03:08:23 +0000 (UTC) Received: from localhost.localdomain (c-73-231-172-41.hsd1.ca.comcast.net [73.231.172.41]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 40ABD21655; Tue, 7 Apr 2020 03:08:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1586228902; bh=8SrYrBSpLj3sSHND73FKaJNPt6ISeBCKvnkNwMh/458=; h=Date:From:To:Subject:In-Reply-To:From; b=xKZqEthlHj4MCfJM6M2uIgkkJAdGpUau4X0goWOXr4MfdrgmmKGQbiNAXurTE0v3N AqCP9d6I/Gx4SyThb5PXq8AHoXxihEnNlL8x4kGh27sJIQv543DmC1O5B95e9ywhjA DofyRfYDqHBZzPGLTi9AER2Updu/owL7WjIHaOkU= Date: Mon, 06 Apr 2020 20:08:21 -0700 From: Andrew Morton To: akpm@linux-foundation.org, jbi.octave@gmail.com, linux-mm@kvack.org, minchan@kernel.org, mm-commits@vger.kernel.org, torvalds@linux-foundation.org Subject: [patch 082/166] mm/zsmalloc: add missing annotation for migrate_read_lock() Message-ID: <20200407030821.ZZoGCdggg%akpm@linux-foundation.org> In-Reply-To: <20200406200254.a69ebd9e08c4074e41ddebaf@linux-foundation.org> User-Agent: s-nail v14.8.16 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: From: Jules Irenge Subject: mm/zsmalloc: add missing annotation for migrate_read_lock() Sparse reports a warning at migrate_read_lock()() warning: context imbalance in migrate_read_lock() - wrong count at exit The root cause is the missing annotation at migrate_read_lock() Add the missing __acquires(&zspage->lock) annotation Link: http://lkml.kernel.org/r/20200214204741.94112-11-jbi.octave@gmail.com Signed-off-by: Jules Irenge Acked-by: Minchan Kim Signed-off-by: Andrew Morton --- mm/zsmalloc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/mm/zsmalloc.c~mm-zsmalloc-add-missing-annotation-for-migrate_read_lock +++ a/mm/zsmalloc.c @@ -1833,7 +1833,7 @@ static void migrate_lock_init(struct zsp rwlock_init(&zspage->lock); } -static void migrate_read_lock(struct zspage *zspage) +static void migrate_read_lock(struct zspage *zspage) __acquires(&zspage->lock) { read_lock(&zspage->lock); }