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Sun, 30 Aug 2026 00:53:15 +0000 X-Mizu-Trace-ID: 176b837cecade791 X-Migadu-Flow: FLOW_OUT Date: Sat, 29 Aug 2026 17:53:14 -0700 From: Shakeel Butt To: Andrew Morton Cc: Michal Hocko , Tao Cui , linux-mm@kvack.org, cgroups@vger.kernel.org, linux-kernel@vger.kernel.org, hannes@cmpxchg.org, roman.gushchin@linux.dev, muchun.song@linux.dev, Tao Cui Subject: Re: [PATCH] mm: page_counter: reject empty string in page_counter_memparse() Message-ID: References: <20260817042652.74136-1-cui.tao@linux.dev> <9bd74181-2ce4-4d69-a353-614685559ceb@linux.dev> <20260829174220.204771edba7c52511dc08641@linux-foundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260829174220.204771edba7c52511dc08641@linux-foundation.org> X-Rspam-User: X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: B565180004 X-Stat-Signature: gghzq3k3kta6csji9gmmtwsin7gcx4uf X-HE-Tag: 1788051206-403286 X-HE-Meta: U2FsdGVkX1/lycNpkoiV6XDDpWwtS0x6B4HW5COVB8D5AM3pmZ8+V+OX93Ktw0YMynJiq6TpSvaeNf2fe8KjG07pRKFKfQSSQxf43Dj0iUlj1oK56M+d/2bT0NOtuiPS9RhWjAb7+gfh+OZ/VoSyCShHZjx8b4nkjsuUrsuIsxN8eGIPZXl4y6w0PHs06ovBgDgGWM7v8adnMMeSjzByD0IY3JmuftFfV0E3twVudz6NQmsvzjph8MbJZ77FIvtfqCupq164bNSeiaKA89/F+mDfcxSjKVnj8y0GYP2vddTwk8hbe6AE+BbXfQSmDktAPVZctpSH4JqDh9yUDy90n2otBjkWLwK+tMGEZUTgP3wi/2qfgzSxu58aRcupLiztBe/OjudPcLml9YHzheY3G3k+gHQhg4VhKbEZTx1Bs5q6d7IHJQcV42lqiP4xPqOgmes8gZp0LNL1G75G3G5zMm5IH7NyFnEI26CV8H7FKFVx/S1es3vNROfBcBc7tZ7BljEMeOayTpJDJ6HNfqhBkwrVPYpBZJ9qrpUpEY37w6WoHjXaZ7SRbSUlmFrK0Uf87xZWOarem4tgSrMInZ+u7BwRSmgBeLCPmma+ebI96iZCj5wc2oNFjIb7DRcBeqWbEIrJ2zON6cI/0Xlnc0ugYLkr9r9khLXCaLVwlC0YKtdch2tYN0R8UGvnCeccM0DrkeKAFp0s4PMGroL4Ua6S3Q/TTS87fZufzu4UAh05ggLX9oUWmJb8EwxZl6V38AZTdZhPyLu26mz62TThQstWUaf5G8+bby8bC2I6trUTI9YwVPT+iREonViEe4T+WaNp3ilCb0OiSWx1SCQsagmnZ5h8W/BEkGX8HN6TcGb/+pbvJImpnR6B0RgxHBAJxYXRDE9gT6lrtdBbxr3t6IX6VXOj8xkPmtY/lXaPpdW1MiOCD5qa5Hn0Mow+W6FI0vDFA/SE64tJR6177XVFWDh hNKuS3yk c8GHyhR7BqGlH8uHm2f23H6gorXnb+2zPMymKROQ2/TEBl2WDFT2vaGYJG2YtdxWXNO0Sh6yNzwO+xE5KcpeeI+0GPNvr6LIhpqpogsuA7VG47ug3YAKfk0bPshdLCyoAAyKozI2MJfFEgovXJFpwBWEfr+LVYnwHRAcx3sg7K+oqtKpwt+vX3oW3jv9tBo0Q+3a3a7e20Ih9ghtHBZQT4Tbq2eWfp1n90orhXF9Ltm/NiYgMbkFuDAH7ZytAHVVfJQS4cQAv7Sak90L/o0lTzS0JM4/3RZzpiJY1hugYd+ZG7WVqaSJJ0SyvRYJT+LWZco9T0uc07UHKaMkrPtCCktKmWdt1082THMaDbFKVv3M3eosqIvMtnvbhGNGUdS1sizLWWCFMdGNiOC8TXSb5TvixoE2heYy76TrMh3+ykosJDYw= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Sat, Aug 29, 2026 at 05:42:20PM -0700, Andrew Morton wrote: > On Wed, 19 Aug 2026 09:00:36 +0200 Michal Hocko wrote: > > > > Whether that benefit outweighs the compatibility risk is not mine to > > > decide. > > > > And I am still not convinced. I do understand your frustration from the > > debugging the issue. In any way, if other maintainers decide this change > > is worth I will not stand in the way. > > Shakeel seems OK with it. Other other maintainers are being aloof ;) > > I'll queue it for now, along with a note that additional poking is > needed. > > A v2 would be nice, please. Add details about that production incident > and make the requested update to > Documentation/admin-guide/cgroup-v2.rst. V2 is already out and we decided to make it a documented behavior. https://lore.kernel.org/20260826021753.197871-1-cui.tao@linux.dev