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| author | Nikita Yushchenko <nikita.yoush@cogentembedded.com> | 2017-01-11 21:56:31 +0300 |
|---|---|---|
| committer | Sasha Levin <alexander.levin@verizon.com> | 2017-07-31 13:37:51 -0400 |
| commit | 318c1207565009f2bc94d5ff28383b5390079c12 (patch) | |
| tree | c43a71541ea1876b6d66b0958193c78492dd4beb /arch/s390 | |
| parent | c83f147d84835966faadb9caab0845427fdce3dc (diff) | |
swiotlb: ensure that page-sized mappings are page-aligned
[ Upstream commit 602d9858f07c72eab64f5f00e2fae55f9902cfbe ]
Some drivers do depend on page mappings to be page aligned.
Swiotlb already enforces such alignment for mappings greater than page,
extend that to page-sized mappings as well.
Without this fix, nvme hits BUG() in nvme_setup_prps(), because that routine
assumes page-aligned mappings.
Signed-off-by: Nikita Yushchenko <nikita.yoush@cogentembedded.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Konrad Rzeszutek Wilk <konrad@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Diffstat (limited to 'arch/s390')
0 files changed, 0 insertions, 0 deletions