Dan Williams 325896ffdf device-dax: fix private mapping restriction, permit read-only ... Hugh notes in response to commit 4cb19355ea "device-dax: fail all private mapping attempts": "I think that is more restrictive than you intended: haven't tried, but I believe it rejects a PROT_READ, MAP_SHARED, O_RDONLY fd mmap, leaving no way to mmap /dev/dax without write permission to it." Indeed it does restrict read-only mappings, switch to checking VM_MAYSHARE, not VM_SHARED. Cc: <stable@vger.kernel.org> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Pawel Lebioda <pawel.lebioda@intel.com> Fixes: 4cb19355ea ("device-dax: fail all private mapping attempts") Reported-by: Hugh Dickins <hughd@google.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>		2016-12-06 17:42:37 -08:00
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dax.c	device-dax: fix private mapping restriction, permit read-only	2016-12-06 17:42:37 -08:00
dax.h	dax: convert devm_create_dax_dev to PTR_ERR	2016-10-07 16:45:59 -07:00
Kconfig	nvdimm: make CONFIG_NVDIMM_DAX 'bool'	2016-10-27 16:16:21 -07:00
Makefile	/dev/dax, pmem: direct access to persistent memory	2016-05-20 22:02:53 -07:00
pmem.c	device-dax: check devm_nsio_enable() return value	2016-10-28 14:35:25 -07:00