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bh=CC3PdNBrxK34qSjQLT4O1R4qqqd64RoBJ3Qvdxwx02w=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=YxswELzGeJ59W+XHmOUpf6T6ZhmtLAHeROAGRpgwvBCV9Fw2v7en9/kaOdtdBIjZg /fpkHfgMqnAcTkMY+kWWYpT/gZXyl5n20RB+fed2k73taVhyzEoZ079yQyij/J7tzO z14lIZaJR0kYR6hIHcCJ7/YX6w6KvVDulqnZ19GaSvSQBojIzDf7ejKB09ep3damgN a4UtQKKU5E79iU0HSI5d/zxkkRlUSp7Ml8fHAnAbtEs+O0OPjSa8aEeplOwp9RssUh YLW45dJhA/1sFDY1VHEbHSvgMIu1bud0+QqT84G2S5UkXmCbTKPZvmx2qKSZqa2oWo HBcOhowqO3lLg== From: SJ Park To: Sebastian Andrzej Siewior Cc: SJ Park , linux-mm@kvack.org, Andrew Morton , Uladzislau Rezki Subject: Re: [PATCH] mm/vmalloc: Use %p for pointer formatting Date: Fri, 18 Sep 2026 17:39:33 -0700 Message-ID: <20260919003934.86889-1-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260918105013.UpdykT6j@linutronix.de> References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Server: rspam10 X-Rspamd-Queue-Id: 7FB9380002 X-Stat-Signature: fmx9gyshcseuutogbgndn5q34ycp9ehh X-Rspam-User: X-HE-Tag: 1789778382-379049 X-HE-Meta: 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 2vQdzDYW JwY6rE97gJyKyOB87pm3JBTx2TxFpkDF8I7bSRbPmMbh9qk2MaN3ax/Bvje9bsqtP1DM9Z9qiH5btorCtnX7JJM8D3UXrPk/rNJF4cttXzm/rhhKkFwmzhKTL0gwiunPq9YTIk+j5tj6AINPoy/kJqtpJ9iM+iNTgxjiSOT8nZsmjiakqpRl0V+nYlegvz94IvmAlW3oS3IB877MbUeARwRMoFCw6f+6/UyG3owNy2UmGjmJT853UujmLEnVOzGlHNnE/ Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Fri, 18 Sep 2026 12:50:13 +0200 Sebastian Andrzej Siewior wrote: > Commit 45ec16908e84e ("mm: use %pK for /proc/vmallocinfo") introduced > the %pK in order not to leak kernel pointers. > Since commit ad67b74d2469d ("printk: hash addresses printed with > %p") pointers are hashed by default and the behaviour can be controller s/controller/controlled/ ? > by `hash_pointers' boot argument. > The policy on %p is to not introduce new ones. > Removing %pK makes it possible to remove its handling from the library. > > Looking at the output, having the pointer in the output makes it > possible to distinguish the individual entries. > > Use %p instead %pK. Makes sense to me. > > Signed-off-by: Sebastian Andrzej Siewior Reviewed-by: SJ Park Thanks, SJ [...]