From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C03482D6E44; Wed, 13 May 2026 18:35:08 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778697308; cv=none; b=jOziSRnaJsQb8q9Zhx4sePwR83/ue7SAglbitvHp3txVnVNDJDTZIC5FRv8CHvjAgp94MbdYy71tgiRQtpD7wNSB3QUG0923vftWd61AKB2YOpORl2dCDecxeyW9Vx6aLzycdb2CGxd1xfH+W9I9dK6iTsMiQiVVgh8jxLtVfHc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778697308; c=relaxed/simple; bh=GfJ3DboiwFm8hVMw/nXzl/gOAngVCipYQtAF1PsoRmM=; h=Date:To:From:Subject:Message-Id; b=YAY+LTwlkgbg9/C/cnPDs4JamKyqPB2bmX21Vr+yxiNbwxND01klVPEJ2K8vi0kFKZ1HBpAsNlIBGkWVLij30L7YoRkwdI4tw4tclnSLrv6RQZsNtBDKxuzMOEO7pVs5vWluPiyCR4T3movP7Asr9ULSZ1/qATepapmcuWOAvH4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b=MddIMw4e; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="MddIMw4e" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3BC6BC19425; Wed, 13 May 2026 18:35:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1778697308; bh=GfJ3DboiwFm8hVMw/nXzl/gOAngVCipYQtAF1PsoRmM=; h=Date:To:From:Subject:From; b=MddIMw4eMv+y+uiMqZPtDEiyF5FpD3OMb+emYvOJTBbbfPzYExid7pQ0Vf5W7G107 UjYeKIRMOZ+LwGmE6NXurhw1aQgX4Zb4+QMIUXSeeedPI+7yUWKpU8FffTy6U8g19S wo3yIqchx6UWxvoeOWl4/0SHXWO5LarWe6framDo= Date: Wed, 13 May 2026 11:35:07 -0700 To: mm-commits@vger.kernel.org,stable@vger.kernel.org,leon@kernel.org,jgg@ziepe.ca,balbirs@nvidia.com,hao.ge@linux.dev,akpm@linux-foundation.org From: Andrew Morton Subject: + lib-test_hmm-use-kvfree-to-free-kvcalloc-allocations.patch added to mm-new branch Message-Id: <20260513183508.3BC6BC19425@smtp.kernel.org> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The patch titled Subject: lib/test_hmm: use kvfree() to free kvcalloc() allocations has been added to the -mm mm-new branch. Its filename is lib-test_hmm-use-kvfree-to-free-kvcalloc-allocations.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/lib-test_hmm-use-kvfree-to-free-kvcalloc-allocations.patch This patch will later appear in the mm-new branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Note, mm-new is a provisional staging ground for work-in-progress patches, and acceptance into mm-new is a notification for others take notice and to finish up reviews. Please do not hesitate to respond to review feedback and post updated versions to replace or incrementally fixup patches in mm-new. The mm-new branch of mm.git is not included in linux-next If a few days of testing in mm-new is successful, the patch will me moved into mm.git's mm-unstable branch, which is included in linux-next Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via various branches at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there most days ------------------------------------------------------ From: Hao Ge Subject: lib/test_hmm: use kvfree() to free kvcalloc() allocations Date: Wed, 13 May 2026 16:25:25 +0800 Coccinelle scripts/coccinelle/api/kfree_mismatch.cocci reports the following warnings: lib/test_hmm.c:1256:15-16: WARNING kvmalloc is used to allocate this memory at line 1191 lib/test_hmm.c:1257:15-16: WARNING kvmalloc is used to allocate this memory at line 1196 Fix this by replacing kfree() with kvfree() to correctly handle the vmalloc() fallback path of kvcalloc(). Link: https://lore.kernel.org/20260513082525.154036-1-hao.ge@linux.dev Fixes: 775465fd26a3 ("lib/test_hmm: add zone device private THP test infrastructure") Signed-off-by: Hao Ge Acked-by: Balbir Singh Cc: Jason Gunthorpe Cc: Leon Romanovsky Cc: Signed-off-by: Andrew Morton --- lib/test_hmm.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/lib/test_hmm.c~lib-test_hmm-use-kvfree-to-free-kvcalloc-allocations +++ a/lib/test_hmm.c @@ -1253,8 +1253,8 @@ out: mmap_read_unlock(mm); mmput(mm); free_mem: - kfree(src_pfns); - kfree(dst_pfns); + kvfree(src_pfns); + kvfree(dst_pfns); return ret; } _ Patches currently in -mm which might be from hao.ge@linux.dev are mm-alloc_tag-replace-fixed-size-early-pfn-array-with-dynamic-linked-list.patch proc-meminfo-expose-per-node-balloon-pages-in-node-meminfo.patch lib-test_hmm-use-kvfree-to-free-kvcalloc-allocations.patch