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h=From:To:Cc:Subject:Date; b=ca5Kmi3ToCwGiK0ES26yioe2ZZdSHsut3ZzWxubTNg7D1FtnC+GMmd5x7OhzF7KD2 2YWdBp6jHFa437dcbPVjZEcuxXMyOrjNp0u6r015ZgvsUevz3v6JxBYP9vbiiKfu6Q WrXb4OHUFoGbCyhoo/kUnbm4NipW/N5vHCmfaI736zjbsVE+6tyG1FgRW3skRd+tsm jDGNjYaa9mnfJxDLHnZNmVJTrJMQIjG//8la98pHYmIee4BWmd73JsFZG8BGnfwZvR 9aPhJ4M457RiiNXJrHZXJJVSJ/rOO7vCpfKqbhdijyn2zzaSsdNHbvVwKobJgRVKl6 Wvn3cHzZ3qJTg== From: Eric Biggers To: linux-block@vger.kernel.org Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, Jens Axboe , Christoph Hellwig , Vlastimil Babka , Harry Yoo , Andrew Morton , Hao Li , Christoph Lameter , David Rientjes , Roman Gushchin , Eric Biggers Subject: [PATCH 0/3] Fix a deadlock in blk-crypto-fallback Date: Thu, 6 Aug 2026 15:10:28 -0700 Message-ID: <20260806221031.79050-1-ebiggers@kernel.org> X-Mailer: git-send-email 2.55.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: 1008B40013 X-Stat-Signature: fmnq7t4y7u1s3i78wgf9196dt5ojyxyp X-Rspam-User: X-HE-Tag: 1786054277-270934 X-HE-Meta: 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 +kx/aHra kfOCIjEqDdoNH+Zlw9JpsBZ4WaaCzORI/Q4XnYfuu4ARuvQgUYjFH/RvgQ5cy/dHd2DtBqxOCk5JOaS8OeZqVMouBF7145SI2bAUEO4ZV20E7PBdio6wWr2QaHt3HSd6azwKXbC25jJnLUWVD9W2IVnhIcfPEfi2Sb1PGbBNNoDJkC6G3995xmQvBPlZrKQ98zRVcP/UxnUUm//g= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: This series fixes a deadlock in blk-crypto-fallback that could occur when a large WRITE bio was submitted to dm-inlinecrypt. As a prerequisite, it makes mempool_alloc_bulk() support fallible allocations in the same way that mempool_alloc() does. Please consider this series for the block tree for 7.3. Eric Biggers (3): mm: make mempool_alloc_from_pool() return bool mm: support fallible mempool_alloc_bulk() blk-crypto-fallback: Fix deadlock when encrypting large bio in dm layer block/blk-crypto-fallback.c | 72 +++++++++++++++++++++++++++++++++---- include/linux/mempool.h | 4 +-- mm/mempool.c | 50 +++++++++++++++++--------- 3 files changed, 100 insertions(+), 26 deletions(-) base-commit: 0d839570765118029aa8bf4a95444c6a11aacf85 -- 2.55.0