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authorChristoph Hellwig <hch@lst.de>2019-06-26 14:27:08 +0200
committerJason Gunthorpe <jgg@mellanox.com>2019-07-02 19:32:44 +0200
commit1e240e8d4a7d92232b6214e02a0a4197a53afd6c (patch)
tree79627ced555b058e23eedd971352ee51918e5dcd /drivers/dax/pmem
parentmemremap: validate the pagemap type passed to devm_memremap_pages (diff)
downloadlinux-1e240e8d4a7d92232b6214e02a0a4197a53afd6c.tar.xz
linux-1e240e8d4a7d92232b6214e02a0a4197a53afd6c.zip
memremap: move dev_pagemap callbacks into a separate structure
The dev_pagemap is a growing too many callbacks. Move them into a separate ops structure so that they are not duplicated for multiple instances, and an attacker can't easily overwrite them. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Logan Gunthorpe <logang@deltatee.com> Reviewed-by: Jason Gunthorpe <jgg@mellanox.com> Reviewed-by: Dan Williams <dan.j.williams@intel.com> Tested-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers/dax/pmem')
-rw-r--r--drivers/dax/pmem/core.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/dax/pmem/core.c b/drivers/dax/pmem/core.c
index f9f51786d556..6eb6dfdf19bf 100644
--- a/drivers/dax/pmem/core.c
+++ b/drivers/dax/pmem/core.c
@@ -16,7 +16,7 @@ struct dev_dax *__dax_pmem_probe(struct device *dev, enum dev_dax_subsys subsys)
struct dev_dax *dev_dax;
struct nd_namespace_io *nsio;
struct dax_region *dax_region;
- struct dev_pagemap pgmap = { 0 };
+ struct dev_pagemap pgmap = { };
struct nd_namespace_common *ndns;
struct nd_dax *nd_dax = to_nd_dax(dev);
struct nd_pfn *nd_pfn = &nd_dax->nd_pfn;