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c4f0e5cfde
In case of splitting to 4k mapping the early exit in walk_pte_level()
must only be taken iff flags is equal to SET_MEMORY_4K.
Currently the early exit is taken if the flag is set, and also others
might be set. This may lead to the situation that a mapping is split
but other changes are not done, like e.g. setting pages to R/W.
There is currently no such caller, but there might be in the future.
Fixes:
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.. | ||
cmm.c | ||
dump_pagetables.c | ||
extmem.c | ||
fault.c | ||
gmap.c | ||
hugetlbpage.c | ||
init.c | ||
kasan_init.c | ||
maccess.c | ||
Makefile | ||
mmap.c | ||
page-states.c | ||
pageattr.c | ||
pgalloc.c | ||
pgtable.c | ||
vmem.c |