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authorDan Williams <dan.j.williams@intel.com>2016-02-25 01:02:06 +0300
committerVishal Verma <vishal.l.verma@intel.com>2016-05-17 09:44:13 +0300
commit8b3db9798c689ba2dc509f6ca1a8c7e1c1a3e62a (patch)
tree25681acb8dc6cff08eddf61167d1837c305fa570 /drivers/acpi/ac.c
parenta8078b1fc616da6112eb95f0063cd34531d4ccf0 (diff)
downloadlinux-8b3db9798c689ba2dc509f6ca1a8c7e1c1a3e62a.tar.xz
dax: fallback from pmd to pte on error
In preparation for consulting a badblocks list in pmem_direct_access(), teach dax_pmd_fault() to fallback rather than fail immediately upon encountering an error. The thought being that reducing the span of the dax request may avoid the error region. Reviewed-by: Jeff Moyer <jmoyer@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Vishal Verma <vishal.l.verma@intel.com>
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