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b=UoOyK7uJdoSQSaL7/U/4K7p6qbEJPMlXXQKz1oV7p7qr1JYL1RWsYKBNsC8CF4HtY JuY9ndNtBdyQ8zzfe42vDhWZrWo89kapuryYwKJI084FYa6k4DWQ++0vdrSNstI7Ev iHRDPwNF4FyaAe4+lDAb0TR3/vTBSY2NJWT1WxxMN7DIjeHAJzfqZRHOvILlfvB879 jv5rwDrJtmZ94jwkc1Hx8afdd+lrq1jaubs8mulhahvML08K1o2ud9tjwud+y5gjjT 62HK6sBghb2qzeqd9l34F3Fi1P/rlLhzSBPJE4Aw2GslAPfPM4+RcWfC79riaWhYra 23csE1EWvK22w== From: SeongJae Park To: Andrew Morton Cc: SeongJae Park , damon@lists.linux.dev, kernel-team@meta.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [PATCH 2/2] mm/damon/Kconfig: enable CONFIG_DAMON by default Date: Tue, 20 May 2025 21:27:55 -0700 Message-Id: <20250521042755.39653-3-sj@kernel.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250521042755.39653-1-sj@kernel.org> References: <20250521042755.39653-1-sj@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Stat-Signature: nirb36bgdjbtmxxqmnbrxp6e15prj45z X-Rspam-User: X-Rspamd-Server: rspam03 X-Rspamd-Queue-Id: C47A0C0007 X-HE-Tag: 1747801683-910091 X-HE-Meta: U2FsdGVkX1+SEPDRz7t4bha/hGKGMWq8Cc36uSx7m83HL9PXkBB8/WWpFU8uwb2V2UbPGO/2Rpf9EO6CuKio15NIr8KsqmMP0cUZZn3EVHnaM187M/BTUJiXdIPqQPP/L08h7/2Zl6FkhHOj7jRYfvkg4lhz5U1b7ZDhh819daoBjxoJp7GZnWzQrXxHvcOYqJyq3+jP0P2+L856RR/1cZytflReUpUBbbVDzOqqADFrmLWrOwdFnD/sEsuWq/FVtBt6ydwK4YlnxaihPhEgqfUIshnfIkypDvDOpRmRi4JtwkSOXEKYqkuByboZPvDAYFrhBWVGe4BHG9LVVrf37VAGtg2VYBDWfRLSKnsJHKzw9klFCxpcKBnGeWEFH/t820WSIeg5bKgTajo+IpfaEAk0BP+y0NzdlHzdYmndFtan9VAtySHxiaKIAUmayiy+u7ZXTidaBVWgLo3AE5xKu40sA9YCf+PVRSc/oXn2I9a/XMdoAgz410BEbsQ9W2FyVOVosUP+uNTePu+rLK4DHT9wLPoyjU2TAOujrD1cQa2niMmhjEc0qpccWScHsi4Rs1DPmIRRyXVrV3r7LewPd+osHUQONCYvMGyAf71yfg3SD910vUi+NFs3M497MxklRlA2OR+hJxwSwWA2N7MerPkVc6aW0qtgu8fJBqbuIdKLuVo6SkblUQh45eCcfZb2474x1CpaoKoDs0NTVzIkm1JXYBpblBlsJFiueBHchvhsR8EqCy//CVXiZKtAP1d34o+6v+FXi1eb1VRZYjp+te8Ct4ls6vLZRQDrErO0pshWSE3H0smFD/nLu+ypXwvz17DCKhU57ECmEg0JF0h7383gUtdC3OO4Blabke9v3IvWLu6jrdlQ2QXxMmNKyx71+eRttlB82xlZ+dh/563Y5VN8P+ZGstigq7sYolP9gT/Xjffv1lRJsfNWqWs1CPp0MrPLgjQXepS7J/gVMh4 eJKE7w47 o/kKF 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: As of this writing, multiple major distros including Alma, Amazon, Android, CentOS, Debian, Fedora, and Oracle are build-enabling DAMON (set CONFIG_DAMON[1]). Enabling it by default will save configuration setup time for the current and future DAMON users. Build-enabling DAMON does not introduce a real risk since it makes no behavioral change by default. It requires explicit user requests to do anything. Only one potential risk is making the size of the kernel a little bit larger. On a production-purpose configuration, it increases the resulting kernel package size by about 0.1 % of the final package file. I believe that's too small to be a real problem in common setups. Hence, the benefit of enabling CONFIG_DAMON outweighs the potential risk. Set CONFIG_DAMON by default. [1] https://oracle.github.io/kconfigs/?config=UTS_RELEASE&config=DAMON Signed-off-by: SeongJae Park --- mm/damon/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/mm/damon/Kconfig b/mm/damon/Kconfig index c93d0c56b963..551745df011b 100644 --- a/mm/damon/Kconfig +++ b/mm/damon/Kconfig @@ -4,6 +4,7 @@ menu "Data Access Monitoring" config DAMON bool "DAMON: Data Access Monitoring Framework" + default y help This builds a framework that allows kernel subsystems to monitor access frequency of each memory region. The information can be useful -- 2.39.5