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 E06304F1F2 for ; Thu, 8 Feb 2024 21:27:44 +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=1707427665; cv=none; b=C2HNcsqs+dP1SX09xiIq2aSZtusE5NG8aWSTaDioCRxiO0yC0pIYY09BQzu1/A3QLstBIhee390Jbo52HblvNO/+MYYyUYbzZUp+YSCqptvvW9nFy7x2ihO9eZlphHla46huFMO74gTM4w8wiWYed4QL6WOqRt3LEhk5R3RTIRI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707427665; c=relaxed/simple; bh=QeOG0dFs0gbllS8ph0veLHthgviC5m023gad6V3s+G8=; h=Date:To:From:Subject:Message-Id; b=AI1pfnQVKJlaEMPKroE/3Sub6nR2pqTEKLMu5oNA1jJcN4K+q7yEaSiK2v72fdvH8aqBvmkPiPstnqfNQ/AqMthxEOzEy3YeRIxLGrYc5dwxnzXCO1+7/r1v/bNkqob1e9AUzJDP2BBT+9BIqUelmg1CiHcGH7GY93/ikci33V4= 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=s2wOymgq; 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="s2wOymgq" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4E372C433C7; Thu, 8 Feb 2024 21:27:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1707427664; bh=QeOG0dFs0gbllS8ph0veLHthgviC5m023gad6V3s+G8=; h=Date:To:From:Subject:From; b=s2wOymgqfIUlcR2dGpdoeIJaJV/ziM0ah/RXO7Vd200of37TGAxFdWINGbt7Ws0Eg nHbhkpRu1mYe9HZ4bD9Cb3NgoogODaiJOliNXxlyInhQwoP25ooXBBKxevJGop+H0o a0ey4llbFe54U/J4khG47jdq/BsNv2MAF5g0b2is= Date: Thu, 08 Feb 2024 13:27:43 -0800 To: mm-commits@vger.kernel.org,willy@infradead.org,vishal.l.verma@intel.com,torvalds@linux-foundation.org,snitzer@kernel.org,mpatocka@redhat.com,linux@armlinux.org.uk,david@fromorbit.com,dave.jiang@intel.com,dan.j.williams@intel.com,arnd@arndb.de,agk@redhat.com,mathieu.desnoyers@efficios.com,akpm@linux-foundation.org From: Andrew Morton Subject: + dcssblk-cleanup-alloc_dax-error-handling.patch added to mm-unstable branch Message-Id: <20240208212744.4E372C433C7@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The patch titled Subject: dcssblk: cleanup alloc_dax() error handling has been added to the -mm mm-unstable branch. Its filename is dcssblk-cleanup-alloc_dax-error-handling.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/dcssblk-cleanup-alloc_dax-error-handling.patch This patch will later appear in the mm-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: Mathieu Desnoyers Subject: dcssblk: cleanup alloc_dax() error handling Date: Thu, 8 Feb 2024 13:49:12 -0500 Now that alloc_dax() returns ERR_PTR(-EOPNOTSUPP) rather than NULL, the callers do not have to handle NULL return values anymore. Link: https://lkml.kernel.org/r/20240208184913.484340-12-mathieu.desnoyers@efficios.com Signed-off-by: Mathieu Desnoyers Cc: Alasdair Kergon Cc: Mike Snitzer Cc: Mikulas Patocka Cc: Linus Torvalds Cc: Dan Williams Cc: Vishal Verma Cc: Dave Jiang Cc: Matthew Wilcox Cc: Arnd Bergmann Cc: Russell King Cc: Dave Chinner Signed-off-by: Andrew Morton --- drivers/s390/block/dcssblk.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/drivers/s390/block/dcssblk.c~dcssblk-cleanup-alloc_dax-error-handling +++ a/drivers/s390/block/dcssblk.c @@ -679,8 +679,8 @@ dcssblk_add_store(struct device *dev, st goto put_dev; dax_dev = alloc_dax(dev_info, &dcssblk_dax_ops); - if (IS_ERR_OR_NULL(dax_dev)) { - rc = IS_ERR(dax_dev) ? PTR_ERR(dax_dev) : -EOPNOTSUPP; + if (IS_ERR(dax_dev)) { + rc = PTR_ERR(dax_dev); goto put_dev; } set_dax_synchronous(dax_dev); _ Patches currently in -mm which might be from mathieu.desnoyers@efficios.com are nvdimm-pmem-fix-leak-on-dax_add_host-failure.patch nvdimm-pmem-treat-alloc_dax-eopnotsupp-failure-as-non-fatal.patch dm-treat-alloc_dax-eopnotsupp-failure-as-non-fatal.patch dcssblk-handle-alloc_dax-eopnotsupp-failure.patch virtio-treat-alloc_dax-eopnotsupp-failure-as-non-fatal.patch dax-check-for-data-cache-aliasing-at-runtime.patch introduce-cpu_dcache_is_aliasing-across-all-architectures.patch dax-fix-incorrect-list-of-data-cache-aliasing-architectures.patch nvdimm-pmem-cleanup-alloc_dax-error-handling.patch dm-cleanup-alloc_dax-error-handling.patch dcssblk-cleanup-alloc_dax-error-handling.patch virtio-cleanup-alloc_dax-error-handling.patch