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authorDavid Vrabel <david.vrabel@citrix.com>2014-08-05 11:49:19 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-09-05 16:34:16 -0700
commit8e669fe4fcd6be33c827acd303f17c588f9f0b5f (patch)
tree84f799b414b9789d45425d08bf317e98f9f842c4 /fs/jbd2/commit.c
parent0a00abaee6e1b0d8ef5d5989259db2e186a204ba (diff)
x86/xen: use vmap() to map grant table pages in PVH guests
commit 7d951f3ccb0308c95bf76d5eef9886dea35a7013 upstream. Commit b7dd0e350e0b (x86/xen: safely map and unmap grant frames when in atomic context) causes PVH guests to crash in arch_gnttab_map_shared() when they attempted to map the pages for the grant table. This use of a PV-specific function during the PVH grant table setup is non-obvious and not needed. The standard vmap() function does the right thing. Signed-off-by: David Vrabel <david.vrabel@citrix.com> Reported-by: Mukesh Rathor <mukesh.rathor@oracle.com> Tested-by: Mukesh Rathor <mukesh.rathor@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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