diff options
| author | Steven Price <steven.price@arm.com> | 2020-02-04 04:36:38 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-02-04 06:05:25 +0300 |
| commit | f8f0d0b6fa203bfa363d30f34f6fecce9e5cc2f7 (patch) | |
| tree | 3e731fbe428f47df48ef8170d1b92ace3a93119a /arch/arm64/mm/dump.c | |
| parent | 9c7869c7f1720855f90e5bf15539939738d18cb9 (diff) | |
| download | linux-f8f0d0b6fa203bfa363d30f34f6fecce9e5cc2f7.tar.xz | |
mm: ptdump: reduce level numbers by 1 in note_page()
Rather than having to increment the 'depth' number by 1 in ptdump_hole(),
let's change the meaning of 'level' in note_page() since that makes the
code simplier.
Note that for x86, the level numbers were previously increased by 1 in
commit 45dcd2091363 ("x86/mm/dump_pagetables: Fix printout of p4d level")
and the comment "Bit 7 has a different meaning" was not updated, so this
change also makes the code match the comment again.
Link: http://lkml.kernel.org/r/20191218162402.45610-24-steven.price@arm.com
Signed-off-by: Steven Price <steven.price@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: Alexandre Ghiti <alex@ghiti.fr>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Hogan <jhogan@kernel.org>
Cc: James Morse <james.morse@arm.com>
Cc: Jerome Glisse <jglisse@redhat.com>
Cc: "Liang, Kan" <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Paul Burton <paul.burton@mips.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Will Deacon <will@kernel.org>
Cc: Zong Li <zong.li@sifive.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/arm64/mm/dump.c')
| -rw-r--r-- | arch/arm64/mm/dump.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/arm64/mm/dump.c b/arch/arm64/mm/dump.c index e5b6691c5bfc..ef4b3ca1e058 100644 --- a/arch/arm64/mm/dump.c +++ b/arch/arm64/mm/dump.c @@ -176,8 +176,7 @@ struct pg_level { }; static struct pg_level pg_level[] = { - { - }, { /* pgd */ + { /* pgd */ .name = "PGD", .bits = pte_bits, .num = ARRAY_SIZE(pte_bits), @@ -257,7 +256,7 @@ static void note_page(struct ptdump_state *pt_st, unsigned long addr, int level, if (level >= 0) prot = val & pg_level[level].mask; - if (!st->level) { + if (st->level == -1) { st->level = level; st->current_prot = prot; st->start_address = addr; @@ -351,6 +350,7 @@ void ptdump_check_wx(void) { 0, NULL}, { -1, NULL}, }, + .level = -1, .check_wx = true, .ptdump = { .note_page = note_page, |