From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2DFC3200A8 for ; Fri, 15 Dec 2023 11:11:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="jreVU8AJ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id F29C5C433C7; Fri, 15 Dec 2023 11:11:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1702638686; bh=RzGc48zzbRCq6DhLWL5iyC3a24JS0YTPqfWWIqgeEtA=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=jreVU8AJVQXktx3sJ2Hlo0UW8ts1cpLW172An3i0B1gwCawqjCsGoBayVxthWZG63 vtpN71YJ2izchcp1N44tSR3g3Hodb70XgrMPX9ZuiWSUX10rNhQPO/Bphw1pxEGSKw 82q2KnoAcbSLPJ6+F1kCccejkiCOmQWrKSaSz6e0BmCeR2MgOyKmMbUrimNUsJGXnK JQPk3iRdnCkQ9DFxVNiMqGpRDf/Uq7/kKHCOqc35hB54BYlAOwbSdRPJIGKJ/ol7OY 1vvfmQ1UET2/bbW60yPgL87ciCPv17nm+gw6r/0q8L0Jhe3mmryAqk246TDmllOACP qe7vM2EjPnJDA== Date: Fri, 15 Dec 2023 12:11:23 +0100 From: Alejandro Colomar To: Yang Xu Cc: linux-man@vger.kernel.org Subject: Re: [PATCH v2 2/2] swapon.2: Adjust decreased value under CONFIG_PTE_MARKER Message-ID: References: <20231205063017.68690-1-xuyang2018.jy@fujitsu.com> <20231205063017.68690-2-xuyang2018.jy@fujitsu.com> Precedence: bulk X-Mailing-List: linux-man@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="jM8DBPAoHGvogwyp" Content-Disposition: inline In-Reply-To: <20231205063017.68690-2-xuyang2018.jy@fujitsu.com> --jM8DBPAoHGvogwyp Content-Type: text/plain; protected-headers=v1; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Date: Fri, 15 Dec 2023 12:11:23 +0100 From: Alejandro Colomar To: Yang Xu Cc: linux-man@vger.kernel.org Subject: Re: [PATCH v2 2/2] swapon.2: Adjust decreased value under CONFIG_PTE_MARKER Hi Yang, On Tue, Dec 05, 2023 at 01:30:17AM -0500, Yang Xu wrote: > Since linux 5.19[1], MAX_SWAPFILES will be futher decreased > 1 if kernel built with CONFIG_PTE_MARKER. >=20 > [1]https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/com= mit/include/linux/swap.h?id=3D679d10331 >=20 > Signed-off-by: Yang Xu > --- Patch applied. Have a lovely day, Alex > man2/swapon.2 | 4 ++++ > 1 file changed, 4 insertions(+) >=20 > diff --git a/man2/swapon.2 b/man2/swapon.2 > index 2bc477d18..13282ff96 100644 > --- a/man2/swapon.2 > +++ b/man2/swapon.2 > @@ -181,6 +181,10 @@ Since Linux 5.14, the limit is further decreased by 4 > if the kernel is built with the > .B CONFIG_DEVICE_PRIVATE > option. > +Since Linux 5.19, the limit is further decreased by 1 > +if the kernel is built with the > +.B CONFIG_PTE_MARKER > +option. > .P > Discard of swap pages was introduced in Linux 2.6.29, > then made conditional > --=20 > 2.27.0 >=20 >=20 --=20 Looking for a remote C programming job at the moment. --jM8DBPAoHGvogwyp Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEE6jqH8KTroDDkXfJAnowa+77/2zIFAmV8NFsACgkQnowa+77/ 2zKi2A/6AoPdbuqvQcTft1Sto36bIbaltL2+H0imm7VSHVf2120vQQTyZ6pBHCon 7sVuLuB+eD3AXOmdCpqDRT/GGZE0LHgbaOUBC/txRKzxq9eP+FgQRvC2Gwt2q9V+ 1CUQ3RoMZar/XCMeqmfYwwa29pvQmHN5WkoXu6P/1sjgtvj9YzX3qodzeP35vD6q ApXPIS3nyuRa90upCP6Pw2bP1yOUbqja35dXSY16Ikm3BEltPuh5mPBXqtVQgn3F v8gAPAvA3LpQ++vLTPFwukdeZW7NhKQXutx+nrFo/aP+lQd8ITlAdrXABSoMypLm nDoYfW9RtIPYo2dq2kvFFp7DYWAwuhVYyX2JQOacSy1QjxEkm7xyz1CDgJ7eHdNH PXcqtCDWzJbr9jCi58HcTZynJuNfIUt5zIbQZUn/Ufz3Ua02pDAt96cMPXCwwHXH cUqsuDrm29+n9X/HG8gFvPDhPRRDMVshkQkMjQiRjSxmjIT+dKUDHJJ9sUxdW/nq RA62ixtm9pAV0MNDfrnnGWUd7X3Il5E+/ctoWQxkd3nh5Xw7189mFle51wzGcNBA B22YdlOJGKVJ1lv2gvMbAyH0evTWX5uKD8eMUYUrM5ccXPbeCaAZpLbUQEw99soX xXmEkwBJlKflUbWnSvRo77cPwbRKHg62DVZb+hkaCA2dJ3jNaXQ= =kDx0 -----END PGP SIGNATURE----- --jM8DBPAoHGvogwyp--