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RELEASE_LVRT_COMMS-3.0

RELEASE_LVRT_COMMS-3.0: x86/mm: Fix vmalloc_fault to use pXd_large
@toshikani toshikani tagged this 25 May 14:48 
commit 18a955219bf7d9008ce480d4451b6b8bf4483a22 upstream.

Gratian Crisan reported that vmalloc_fault() crashes when CONFIG_HUGETLBFS
is not set since the function inadvertently uses pXn_huge(), which always
return 0 in this case.  ioremap() does not depend on CONFIG_HUGETLBFS.

Fix vmalloc_fault() to call pXd_large() instead.

Fixes: f4eafd8bcd52 ("x86/mm: Fix vmalloc_fault() to handle large pages properly")
Reported-by: Gratian Crisan <[email protected]>
Signed-off-by: Toshi Kani <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: Borislav Petkov <[email protected]>
Cc: Andy Lutomirski <[email protected]>
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>

(cherry picked from commit d3b0e9891b1f85aa623f8b6f8205015fe394ac3a)
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