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charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Wed, Feb 19, 2020 at 01:07:55PM +0100, Christophe Leroy wrote: > = > Le 16/02/2020 =E0 09:18, Mike Rapoport a =E9crit=A0: > > diff --git a/arch/powerpc/mm/ptdump/ptdump.c b/arch/powerpc/mm/ptdump/p= tdump.c > > index 206156255247..7bd4b81d5b5d 100644 > > --- a/arch/powerpc/mm/ptdump/ptdump.c > > +++ b/arch/powerpc/mm/ptdump/ptdump.c > > @@ -277,9 +277,9 @@ static void walk_pmd(struct pg_state *st, pud_t *pu= d, unsigned long start) > > } > > } > > -static void walk_pud(struct pg_state *st, pgd_t *pgd, unsigned long st= art) > > +static void walk_pud(struct pg_state *st, p4d_t *p4d, unsigned long st= art) > > { > > - pud_t *pud =3D pud_offset(pgd, 0); > > + pud_t *pud =3D pud_offset(p4d, 0); > > unsigned long addr; > > unsigned int i; > > @@ -293,6 +293,22 @@ static void walk_pud(struct pg_state *st, pgd_t *p= gd, unsigned long start) > > } > > } > > +static void walk_p4d(struct pg_state *st, pgd_t *pgd, unsigned long st= art) > > +{ > > + p4d_t *p4d =3D p4d_offset(pgd, 0); > > + unsigned long addr; > > + unsigned int i; > > + > > + for (i =3D 0; i < PTRS_PER_P4D; i++, p4d++) { > > + addr =3D start + i * P4D_SIZE; > > + if (!p4d_none(*p4d) && !p4d_is_leaf(*p4d)) > > + /* p4d exists */ > > + walk_pud(st, p4d, addr); > > + else > > + note_page(st, addr, 2, p4d_val(*p4d)); > = > Level 2 is already used by walk_pud(). > = > I think you have to increment the level used in walk_pud() and walk_pmd() > and walk_pte() Thanks for catching this! I'll fix the numbers in the next version. = > > + } > > +} > > + > > static void walk_pagetables(struct pg_state *st) > > { > > unsigned int i; > > @@ -306,7 +322,7 @@ static void walk_pagetables(struct pg_state *st) > > for (i =3D pgd_index(addr); i < PTRS_PER_PGD; i++, pgd++, addr +=3D = PGDIR_SIZE) { > > if (!pgd_none(*pgd) && !pgd_is_leaf(*pgd)) > > /* pgd exists */ > > - walk_pud(st, pgd, addr); > > + walk_p4d(st, pgd, addr); > > else > > note_page(st, addr, 1, pgd_val(*pgd)); > > } > = > Christophe -- = Sincerely yours, Mike. _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel