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authorOliver O'Halloran <oohall@gmail.com>2016-09-19 20:19:00 +1000
committerDan Williams <dan.j.williams@intel.com>2016-09-19 08:54:27 -0700
commit480b6837aa579991c6acc113bccf838e6a90843c (patch)
tree71aca7c1b20a42e451eca88044a2a81a777e827a /fs/proc_namespace.c
parent3be7988674ab33565700a37b210f502563d932e6 (diff)
nvdimm: fix PHYS_PFN/PFN_PHYS mixup
nd_activate_region() iomaps any hint addresses required when activating a region. To prevent duplicate mappings it checks the PFN of the hint to be mapped against the PFNs of the already mapped hints. Unfortunately it doesn't convert the PFN back into a physical address before passing it to devm_nvdimm_ioremap(). Instead it applies PHYS_PFN a second time which ends about as well as you would imagine. Signed-off-by: Oliver O'Halloran <oohall@gmail.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'fs/proc_namespace.c')
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