From: Fedor Pchelkin <pchelkin@ispras.ru>
To: Xiang Chen <chenxiang66@hisilicon.com>, Barry Song <21cnbao@gmail.com>
Cc: Fedor Pchelkin <pchelkin@ispras.ru>,
Christoph Hellwig <hch@lst.de>,
Marek Szyprowski <m.szyprowski@samsung.com>,
Robin Murphy <robin.murphy@arm.com>,
iommu@lists.linux.dev, linux-kernel@vger.kernel.org,
Alexey Khoroshilov <khoroshilov@ispras.ru>,
lvc-project@linuxtesting.org
Subject: [PATCH v2 0/4] dma-mapping: benchmark: fixes and error handling improvements
Date: Sat, 4 May 2024 14:47:00 +0300 [thread overview]
Message-ID: <20240504114713.567164-1-pchelkin@ispras.ru> (raw)
Some of the error paths inside do_map_benchmark() do not behave well.
There is also an insufficient node id validation and an out-of-bounds
access in NUMA_NO_NODE case.
Adjust these issues with the following patches.
Changelog
v2:
* Rework kthread-related error handling patch (thanks to Robin Murphy) and
merge patches 1/2 and 2/2 from v1 into a single patch - 1/4 in v2.
* Three additional patches:
* * Avoid needless copy_to_user if benchmark fails (suggested by Barry Song).
* * Fix node id validation (found while testing the previous ones).
* * Handle NUMA_NO_NODE correctly.
v1:
* https://lore.kernel.org/linux-iommu/20240502161827.403338-1-pchelkin@ispras.ru/
Fedor Pchelkin (4):
dma-mapping: benchmark: fix up kthread-related error handling
dma-mapping: benchmark: avoid needless copy_to_user if benchmark fails
dma-mapping: benchmark: fix node id validation
dma-mapping: benchmark: handle NUMA_NO_NODE correctly
kernel/dma/map_benchmark.c | 25 ++++++++++++++++---------
1 file changed, 16 insertions(+), 9 deletions(-)
--
2.45.0
next reply other threads:[~2024-05-04 11:48 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-04 11:47 Fedor Pchelkin [this message]
2024-05-04 11:47 ` [PATCH v2 1/4] dma-mapping: benchmark: fix up kthread-related error handling Fedor Pchelkin
2024-05-10 17:35 ` Robin Murphy
2024-05-15 12:14 ` Fedor Pchelkin
2024-05-04 11:47 ` [PATCH v2 2/4] dma-mapping: benchmark: avoid needless copy_to_user if benchmark fails Fedor Pchelkin
2024-05-10 17:52 ` Robin Murphy
2024-05-04 11:47 ` [PATCH v2 3/4] dma-mapping: benchmark: fix node id validation Fedor Pchelkin
2024-05-10 17:45 ` Robin Murphy
2024-05-04 11:47 ` [PATCH v2 4/4] dma-mapping: benchmark: handle NUMA_NO_NODE correctly Fedor Pchelkin
2024-05-07 6:56 ` Barry Song
2024-05-23 13:10 ` [PATCH v2 0/4] dma-mapping: benchmark: fixes and error handling improvements Christoph Hellwig
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