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by smtp.kernel.org (Postfix) with ESMTPSA id 431AFC4CECD; Sat, 28 Dec 2024 15:11:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1735398688; bh=6UxkEp5VUvbzjg5phfl/bi19FEfGCpo82xMHINgWQnM=; h=Subject:From:To:Cc:Date:In-Reply-To:References:From; b=uT6ITn/OrDBKEXFwTCqgbgVnQsRo/+ArMvekvwp+iMfgDo8ZbrkffmihWr40BHnek fMo87NZVd24d5BNDsnYFnvDU1hW4CDXwExE2TTuyBlJp9C/w8ljQeh+wC8apxBV2mU c2JBKuWbY1pdz0K5rtCaQWrwzxcN/k+87pM4iMCBkdiTzSQ0bhqL4JEafVS5Sb8rbI q21Uj1EKE0Gv7LOD7apE529eQDrLif693lf8MC/X7fY6RXacvyEOxWaW75/z75sanG nYzRSmnlUnqBJCojWi57XfH03psaFahra7rER2LwjFpOgTaCbuBP9zeIiwX46AEs39 PwE/HOAndAvLA== Message-ID: <3bd144e59903056b7f4a95a2996bdeaeff6b5024.camel@kernel.org> Subject: Re: [PATCH v4 -next 11/15] sunrpc: simplify rpcauth_cache_shrink_count() From: Jeff Layton To: Kaixiong Yu , akpm@linux-foundation.org, mcgrof@kernel.org Cc: ysato@users.sourceforge.jp, dalias@libc.org, glaubitz@physik.fu-berlin.de, luto@kernel.org, tglx@linutronix.de, 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ying.huang@intel.com, yang@os.amperecomputing.com, zev@bewilderbeest.net, serge@hallyn.com, vegard.nossum@oracle.com, wangkefeng.wang@huawei.com Date: Sat, 28 Dec 2024 10:11:21 -0500 In-Reply-To: <20241228145746.2783627-12-yukaixiong@huawei.com> References: <20241228145746.2783627-1-yukaixiong@huawei.com> <20241228145746.2783627-12-yukaixiong@huawei.com> Autocrypt: addr=jlayton@kernel.org; prefer-encrypt=mutual; keydata=mQINBE6V0TwBEADXhJg7s8wFDwBMEvn0qyhAnzFLTOCHooMZyx7XO7dAiIhDSi7G1NPxw n8jdFUQMCR/GlpozMFlSFiZXiObE7sef9rTtM68ukUyZM4pJ9l0KjQNgDJ6Fr342Htkjxu/kFV1Wv egyjnSsFt7EGoDjdKqr1TS9syJYFjagYtvWk/UfHlW09X+jOh4vYtfX7iYSx/NfqV3W1D7EDi0PqV T2h6v8i8YqsATFPwO4nuiTmL6I40ZofxVd+9wdRI4Db8yUNA4ZSP2nqLcLtFjClYRBoJvRWvsv4lm 0OX6MYPtv76hka8lW4mnRmZqqx3UtfHX/hF/zH24Gj7A6sYKYLCU3YrI2Ogiu7/ksKcl7goQjpvtV YrOOI5VGLHge0awt7bhMCTM9KAfPc+xL/ZxAMVWd3NCk5SamL2cE99UWgtvNOIYU8m6EjTLhsj8sn VluJH0/RcxEeFbnSaswVChNSGa7mXJrTR22lRL6ZPjdMgS2Km90haWPRc8Wolcz07Y2se0xpGVLEQ 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 XApUIOZH x4g6M1W751hGEmTBlHTGf7iBJgcj8NWHDK3DsKYOpxY6L5JKu9ajPoZ+f0FRM6kA31aTAaVrYBni6i8T3io6YVCvYb0CFxlfoS4OKfUjXJStsMlL2NlGWLFL9sOmTIjdiEvxUrVkEJje2QJuzODA+4w5OVVkNu8K+ODt0Az61ieOCrqmTx97wM3ztHOL23jaQ52BhLxj54D57X+VQ+JZVmcjU9Qb282wO87EO9d8cghjcZGGEj+UPDfY1SlW1MOts2qiiuY/yxQV+AWTmN2NJjpQIpcEoHm1orRdeapvGPZTeMK9dPLeg+fU3CVJx499bwg94g28CZ8r/26vEoueIBzSVpA== 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 Sat, 2024-12-28 at 22:57 +0800, Kaixiong Yu wrote: > It is inappropriate to use sysctl_vfs_cache_pressure here. > The sysctl is documented as: This percentage value controls > the tendency of the kernel to reclaim the memory which is used > for caching of directory and inode objects. >=20 > So, simplify result of rpcauth_cache_shrink_count() to > "return number_cred_unused;". >=20 > Signed-off-by: Kaixiong Yu > Reviewed-by: Kees Cook > Acked-by: Anna Schumaker > Acked-by: Jeff Layton > --- > v4: > - Simplify result of rpcauth_cache_shrink_count(). > --- > --- > net/sunrpc/auth.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) >=20 > diff --git a/net/sunrpc/auth.c b/net/sunrpc/auth.c > index 04534ea537c8..5a827afd8e3b 100644 > --- a/net/sunrpc/auth.c > +++ b/net/sunrpc/auth.c > @@ -489,7 +489,7 @@ static unsigned long > rpcauth_cache_shrink_count(struct shrinker *shrink, struct shrink_contro= l *sc) > =20 > { > - return number_cred_unused * sysctl_vfs_cache_pressure / 100; > + return number_cred_unused; > } > =20 > static void No objection here, but this patch seems unrelated to the rest of the series. Should this go in via Anna or Trond's tree? Cheers, --=20 Jeff Layton