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mm: ptdump: expand type of 'val' in note_page()

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The page table entry is passed in the 'val' argument to note_page(),
however this was previously an "unsigned long" which is fine on 64-bit
platforms.  But for 32 bit x86 it is not always big enough to contain a
page table entry which may be 64 bits.

Change the type to u64 to ensure that it is always big enough.

[akpm@linux-foundation.org: fix riscv]
Reported-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: <stable@vger.kernel.org>
Link: http://lkml.kernel.org/r/20200521152308.33096-3-steven.price@arm.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Steven Price
2020-06-01 21:50:01 -07:00
committed by Linus Torvalds
parent 1494e0c38e
commit 99395ee3f7
4 changed files with 4 additions and 4 deletions
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2
arch/riscv/mm/ptdump.c
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@@ -204,7 +204,7 @@ static void note_prot_wx(struct pg_state *st, unsigned long addr)
}
static void note_page(struct ptdump_state *pt_st, unsigned long addr,
int level, unsigned long val)
int level, u64 val)
{
struct pg_state *st = container_of(pt_st, struct pg_state, ptdump);
u64 pa = PFN_PHYS(pte_pfn(__pte(val)));