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Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Avi Weiss Subject: [PATCH v3 0/2] mm/memory: improve insert_pages() error handling Date: Sat, 29 Aug 2026 20:11:11 +0300 Message-ID: X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Improve insert_pages() error handling. The first patch simplifies error handling by initializing the error status to zero and assigning error codes at their respective failure sites. The second patch returns -ENOMEM when walk_to_pmd() fails. A NULL return from walk_to_pmd() indicates failure to allocate an upper page-table level, so -ENOMEM is more appropriate than -EFAULT and is consistent with the subsequent pte_alloc() failure. Changes in v3: * drop the walk_to_pmd() rename following review * use the mm/memory: prefix consistently across the series * carry review tags from v2 * rebase onto current mm-new Link: https://lore.kernel.org/r/cover.1785847364.git.thnkslprpt@gmail.com/ Avi Weiss (2): mm/memory: simplify error handling in insert_pages() mm/memory: return -ENOMEM for page-table allocation failure in insert_pages() mm/memory.c | 22 +++++++++++----------- 1 file changed, 11 insertions(+), 11 deletions(-) base-commit: d2aad7fdcda7ae8a726926f2d6de7fe9e8ee7563 -- 2.43.0