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fac880c7d0
In pmd_free_pte_page() and pud_free_pmd_page() we try to warn if they
hit a present non-table entry. In both cases we'll warn for non-present
entries, as the VM_WARN_ON() only checks the entry is not a table entry.
This has been observed to result in warnings when booting a v4.19-rc2
kernel under qemu.
Fix this by bailing out earlier for non-present entries.
Fixes:
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.. | ||
cache.S | ||
context.c | ||
copypage.c | ||
dma-mapping.c | ||
dump.c | ||
extable.c | ||
fault.c | ||
flush.c | ||
hugetlbpage.c | ||
init.c | ||
ioremap.c | ||
kasan_init.c | ||
Makefile | ||
mmap.c | ||
mmu.c | ||
numa.c | ||
pageattr.c | ||
pgd.c | ||
physaddr.c | ||
proc.S | ||
ptdump_debugfs.c |