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| author | Dan Williams | 2019-02-21 06:12:50 +0100 |
|---|---|---|
| committer | Dan Williams | 2019-02-21 06:12:50 +0100 |
| commit | ad428cdb525a97d15c0349fdc80f3d58befb50df (patch) | |
| tree | 31bebae17f60a5e5a214e135e216fab74e840966 /tools/hv | |
| parent | libnvdimm/pmem: Honor force_raw for legacy pmem regions (diff) | |
| download | kernel-qcow2-linux-ad428cdb525a97d15c0349fdc80f3d58befb50df.tar.gz kernel-qcow2-linux-ad428cdb525a97d15c0349fdc80f3d58befb50df.tar.xz kernel-qcow2-linux-ad428cdb525a97d15c0349fdc80f3d58befb50df.zip | |
dax: Check the end of the block-device capacity with dax_direct_access()
The checks in __bdev_dax_supported() helped mitigate a potential data
corruption bug in the pmem driver's handling of section alignment
padding. Strengthen the checks, including checking the end of the range,
to validate the dev_pagemap, Xarray entries, and sector-to-pfn
translation established for pmem namespaces.
Acked-by: Jan Kara <jack@suse.cz>
Cc: "Darrick J. Wong" <darrick.wong@oracle.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'tools/hv')
0 files changed, 0 insertions, 0 deletions