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3676f9ef54
PTE_PROT_NONE means that a pte is present but does not have any
read/write attributes. However, setting the memory type like
pgprot_writecombine() is allowed and such bits overlap with
PTE_PROT_NONE. This causes mmap/munmap issues in drivers that change the
vma->vm_pg_prot on PROT_NONE mappings.
This patch reverts the PTE_FILE/PTE_PROT_NONE shift in commit
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boot | ||
configs | ||
include | ||
kernel | ||
kvm | ||
lib | ||
mm | ||
xen | ||
Kconfig | ||
Kconfig.debug | ||
Makefile |