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b=KABHcOun1fxqcw3tG8NUUO83OuhFEK5DBYCADvm5MMT6Cru3LTtfsldFv3IADKp/D IGCWOTNHR1i5NviYpacgIfrN+sMIi5omdZKeabU26YVruspNDCjr79DWCt+kGgpN19 0ePH7yrG4+HRhdaGTNFLd8ZB26zTx2WGJ6WJ44x7JvesO1TodiZQUzW7+Zu2KXHOEN j7a7jz+9d/4NqJFPC0gSbE8PbtTq8FTbL8s+1ui6RPl5psyfOD3QpUiUbi6MNf7tG3 XlrrJfeFu/0wEE+wbX4tlEsvIcSf8298CD388zkXg72fu1IpUEtYl453JyBPJYyQdF BY1fOqk3RTtFQ== From: SeongJae Park To: Johannes Weiner Cc: SeongJae Park , Andrew Morton , Yosry Ahmed , Nhat Pham , Chengming Zhou , linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 2/3] mm: remove unused zpool layer Date: Tue, 9 Sep 2025 20:14:21 -0700 Message-Id: <20250910031421.166611-1-sj@kernel.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250909151345.GE1474@cmpxchg.org> References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Server: rspam08 X-Rspamd-Queue-Id: E9C37100003 X-Stat-Signature: bns8bxgqywsh3b51sg1qt6g9zrtiz3so X-Rspam-User: X-HE-Tag: 1757474064-513938 X-HE-Meta: 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 H12oiCq8 H/nJU7uAPrS76n9mkBjyElHtS9e5o7MaGVwuwVa/s6d6xLJXbBL8+V1n7NPu6iiZVvgsw63Ue1MNlbPMgB3Uc1M59ttPy6ePuHFRN8aMkYoJtofllEYERzACO5BnyIp11J9gmh6T7TAlnVREOjQX9Ebgce6XogoqfYKDoGitJP/m7x3PdvAG/RRLdI9dGe2L2lv4m36bCKG1AeHqkfUXjayHp3I5yuCvS372ciUzfTcILBiHBQBDvRXLdAf0pxy/buWn5YxJS1BZXRSMm1e00M8jgZychICCkQTSI 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: List-Subscribe: List-Unsubscribe: On Tue, 9 Sep 2025 16:13:45 +0100 Johannes Weiner wrote: > On Fri, Aug 29, 2025 at 12:07:28PM -0700, SeongJae Park wrote: > > On Fri, 29 Aug 2025 17:15:27 +0100 Johannes Weiner wrote: > > > > > With zswap using zsmalloc directly, there are no more in-tree users of > > > this code. Remove it. > > > > > > Signed-off-by: Johannes Weiner > > [...] > > > --- a/Documentation/admin-guide/mm/zswap.rst > > > +++ b/Documentation/admin-guide/mm/zswap.rst > > [...] > > > When a swap page is passed from swapout to zswap, zswap maintains a mapping > > > -of the swap entry, a combination of the swap type and swap offset, to the zpool > > > -handle that references that compressed swap page. This mapping is achieved > > > -with a red-black tree per swap type. The swap offset is the search key for the > > > -tree nodes. > > > > Nit. s/red-black tree/xarray/ ? > > Yeah, I just kept the changes scoped to the removal of zpool. Makes sense to me :) > > But this file indeed needs a general update beyond the changes in this > series. I'll send a separate patch to clean this up. Looking forward to! > > > Acked-by: SeongJae Park > > Thanks SJ :) Thanks, SJ