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 0C1F480C0C for ; Wed, 30 Oct 2024 01:33:30 +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=1730252011; cv=none; b=TJR35e5gwjaNOX6mOdnxFt6PLhXF/urYRWtswzTi30w3dbucUx2LFPswE/w9wMpqQrACuBlnOhUj7KRzQ0mSKubIsgovDCnmdqa3D+jgwNW5INxiezJgHWQ1kCQcDWJ77vRshlQycsEuhzlJrCSxTlFEh6I52WnaVKKc332sEL0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730252011; c=relaxed/simple; bh=97H/oJTWV0MCvhoiwwBNnTMtfi+K06Pu6/H8pKa5GLI=; h=Date:To:From:Subject:Message-Id; b=FvZ4538dxS7ZeZg/2BxdVPbabuGZh2w4yJ7Lm1/tVTh29MoOFSeFxM8YDVpKI/HIzgpa0Avkh5xBg6mUfiTHPk5hBYOWKrl3oE9694GChDg+q4jAF1jTOB9Jo8KhcACtHZWxTy9QUzglwTXmDphQNxTIU43NF9PioObwyNP8sVM= 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=K/DKvOpB; 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="K/DKvOpB" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7F693C4CECD; Wed, 30 Oct 2024 01:33:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1730252010; bh=97H/oJTWV0MCvhoiwwBNnTMtfi+K06Pu6/H8pKa5GLI=; h=Date:To:From:Subject:From; b=K/DKvOpBsCtgBfAz2SB67j4b1nsQMP2JFgjvj3pgPsR6cEbr69GUDVQInhNo85wHb OBfjsFgDiUUWHwTgj116nmT2EIrSTvybQ1+gLSu5Y9tJn1TMQy5SYgt9XmOdFEjIGH ZUuBzl9fR42WecYRzVPsUBsCa4WTzJ2+Cx9/AhRc= Date: Tue, 29 Oct 2024 18:33:29 -0700 To: mm-commits@vger.kernel.org,sumit.semwal@linaro.org,christian.koenig@amd.com,ubizjak@gmail.com,akpm@linux-foundation.org From: Andrew Morton Subject: + dma-buf-use-atomic64_inc_return-in-dma_buf_getfile.patch added to mm-nonmm-unstable branch Message-Id: <20241030013330.7F693C4CECD@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The patch titled Subject: dma-buf: use atomic64_inc_return() in dma_buf_getfile() has been added to the -mm mm-nonmm-unstable branch. Its filename is dma-buf-use-atomic64_inc_return-in-dma_buf_getfile.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/dma-buf-use-atomic64_inc_return-in-dma_buf_getfile.patch This patch will later appear in the mm-nonmm-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm 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 the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: Uros Bizjak Subject: dma-buf: use atomic64_inc_return() in dma_buf_getfile() Date: Mon, 7 Oct 2024 10:37:52 +0200 Use atomic64_inc_return(&ref) instead of atomic64_add_return(1, &ref) to use optimized implementation and ease register pressure around the primitive for targets that implement optimized variant. Link: https://lkml.kernel.org/r/20241007083921.47525-1-ubizjak@gmail.com Signed-off-by: Uros Bizjak Cc: Sumit Semwal Cc: "Christian König" Signed-off-by: Andrew Morton --- drivers/dma-buf/dma-buf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/dma-buf/dma-buf.c~dma-buf-use-atomic64_inc_return-in-dma_buf_getfile +++ a/drivers/dma-buf/dma-buf.c @@ -558,7 +558,7 @@ static struct file *dma_buf_getfile(size * Override ->i_ino with the unique and dmabuffs specific * value. */ - inode->i_ino = atomic64_add_return(1, &dmabuf_inode); + inode->i_ino = atomic64_inc_return(&dmabuf_inode); flags &= O_ACCMODE | O_NONBLOCK; file = alloc_file_pseudo(inode, dma_buf_mnt, "dmabuf", flags, &dma_buf_fops); _ Patches currently in -mm which might be from ubizjak@gmail.com are perf-hw_breakpoint-use-err_ptr_pcpu-is_err_pcpu-and-ptr_err_pcpu-macros.patch percpu-merge-verify_percpu_ptr-into-its-only-user.patch percpu-introduce-percpu_ptr-macro.patch percpu-cast-percpu-pointer-in-percpu_ptr-via-unsigned-long.patch dma-buf-use-atomic64_inc_return-in-dma_buf_getfile.patch