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a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1775212973; bh=0Pl0tHJSa+A8FXUPv/ufuLndsXrmGd/m2WDATXYEx24=; h=From:To:Cc:Subject:In-Reply-To:References:Date:From; b=I5tu38M3oFHgkgWPDyV5WIKLJABhtseeHrYFB0jULisjiuksVT+0dX9n1/dxNY168 SPErUpYGMQVZ7ZrV+yYTdDiYTTz3K8q4Ti0q9EJkTxx8efyZA25jPJCi1U7CTTJoog nbNGJHgigqDP25YGmUsvkJq40M/YMPlBtNFpmGcipHhDcEMRBtFCnIl7NHQKSp3p8d 4Y0e2vmJlQSkZlryK+boJQQ+ww6m6fJxSFIICvPrq9cI0bu9F9QrcAwJYcHzyHV/cQ 1lbVb8CF9jlEfLjxOffJzkbbKCmJ0XRSNgAdAr/g6xpiC7mxwbTkwSr/5QTQSmQmlS 88Xk1livNIz5w== From: Pratyush Yadav To: Pasha Tatashin Cc: rppt@kernel.org, akpm@linux-foundation.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, dmatlack@google.com, pratyush@kernel.org, skhawaja@google.com Subject: Re: [PATCH v3 10/10] liveupdate: Defer file handler module refcounting to active sessions In-Reply-To: <20260327033335.696621-11-pasha.tatashin@soleen.com> (Pasha Tatashin's message of "Fri, 27 Mar 2026 03:33:34 +0000") References: <20260327033335.696621-1-pasha.tatashin@soleen.com> <20260327033335.696621-11-pasha.tatashin@soleen.com> Date: Fri, 03 Apr 2026 10:42:49 +0000 Message-ID: <2vxz5x68e34m.fsf@kernel.org> User-Agent: Gnus/5.13 (Gnus v5.13) MIME-Version: 1.0 Content-Type: text/plain X-Rspamd-Queue-Id: 50188A0002 X-Stat-Signature: 36d6xob788qhrmeew6h1pg88g9gepe6z X-Rspam-User: X-Rspamd-Server: rspam04 X-HE-Tag: 1775212974-452792 X-HE-Meta: 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 CsRfq6lg 5hkVFhvCWqYB8MasokUVTarVHnffzvWfgwqsGyMk/FXb+iER+p/GP/eKB0R4odI5OEAfWx+cLfuMZjCA9YLSvLNoVePFUzw9Ja67wwzYiQ4hTlT1uysLjgeD3SoKK4yUK9m/EoKgSZaU3hX0jTlp4f8EGIFF9IS8KpcB7oA7knd4W3PMqqcI73r22FeDp9IshSB4kGk6msbOLNh16d/gwXhsTclAc+JZ3hqb0lFoF961n6rgnUPgySnIodg== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Fri, Mar 27 2026, Pasha Tatashin wrote: > Stop pinning modules indefinitely upon file handler registration. > Instead, dynamically increment the module reference count only when a > live update session actively uses the file handler (e.g., during > preservation or deserialization), and release it when the session ends. > > This allows modules providing live update handlers to be gracefully > unloaded when no live update is in progress. > > Signed-off-by: Pasha Tatashin Reviewed-by: Pratyush Yadav (Google) [...] -- Regards, Pratyush Yadav