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From: Maxwell Bland <mbland@motorola.com>
To: linux-mm@kvack.org
Cc: Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will@kernel.org>, Jonathan Corbet <corbet@lwn.net>,
	Andrew Morton <akpm@linux-foundation.org>,
	Ard Biesheuvel <ardb@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Christophe Leroy <christophe.leroy@csgroup.eu>,
	Maxwell Bland <mbland@motorola.com>,
	Alexandre Ghiti <alexghiti@rivosinc.com>,
	linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH v4 4/5] arm64: exclusive upper bound for ptdump entries
Date: Tue, 18 Jun 2024 09:42:55 -0500	[thread overview]
Message-ID: <hb7v5p6y4aqydsecsnla2ystu3kocevngekyhdbn4kuwboetjq@s3uaiuwd73wl> (raw)
In-Reply-To: <aw675dhrbplkitj3szjut2vyidsxokogkjj3vi76wl2x4wybtg@5rhk5ca5zpmv>

Update the upper bound of all ptdump entries to not include the byte
which is actually governed by the next entry. As the lowest byte is
included and governed, this makes the size specifications exact.

Signed-off-by: Maxwell Bland <mbland@motorola.com>
---
 arch/arm64/mm/ptdump.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/mm/ptdump.c b/arch/arm64/mm/ptdump.c
index 2ec16b523043..63f17c08c406 100644
--- a/arch/arm64/mm/ptdump.c
+++ b/arch/arm64/mm/ptdump.c
@@ -359,11 +359,11 @@ static void note_page(struct ptdump_state *pt_st, unsigned long addr, int level,
 			else
 				delta = pg_level[st->level].size;
 			pt_dump_seq_printf(st->seq, "0x%016lx-0x%016lx   ",
-					   addr, addr + delta);
+					   addr, addr + delta - 1);
 		} else {
 			delta = (addr - st->start_address);
 			pt_dump_seq_printf(st->seq, "0x%016lx-0x%016lx   ",
-					   st->start_address, addr);
+					   st->start_address, addr - 1);
 		}
 
 		/* Align region information regardlesss of level */
-- 
2.39.2




  parent reply	other threads:[~2024-06-18 15:07 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-06-18 14:37 [PATCH v4 0/5] ptdump: add intermediate directory support Maxwell Bland
2024-06-18 14:40 ` [PATCH v4 1/5] mm: add ARCH_SUPPORTS_NON_LEAF_PTDUMP Maxwell Bland
2024-06-18 18:38   ` LEROY Christophe
2024-06-18 14:40 ` [PATCH v4 2/5] arm64: non leaf ptdump support Maxwell Bland
2024-06-18 14:59   ` Ard Biesheuvel
2024-06-18 16:55     ` Maxwell Bland
2024-06-18 14:42 ` [PATCH v4 3/5] arm64: indent ptdump by level, aligning attributes Maxwell Bland
2024-06-18 14:42 ` Maxwell Bland [this message]
2024-06-18 14:43 ` [PATCH v4 5/5] arm64: add attrs and format to ptdump document Maxwell Bland
2024-06-18 23:06   ` Randy Dunlap

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