linux-kernel - [tip:x86/urgent] x86/mm: Fix documentation of module mapping range with 4-level paging

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Date:   Tue, 3 Apr 2018 04:10:59 -0700
From:   "tip-bot for Kirill A. Shutemov" <tipbot@...or.com>
To:     linux-tip-commits@...r.kernel.org
Cc:     hpa@...or.com, kirill.shutemov@...ux.intel.com, mingo@...nel.org,
        tglx@...utronix.de, peterz@...radead.org,
        torvalds@...ux-foundation.org, aryabinin@...tuozzo.com,
        linux-kernel@...r.kernel.org
Subject: [tip:x86/urgent] x86/mm: Fix documentation of module mapping range
 with 4-level paging

Commit-ID:  9a3b7e5e65c4b4d332df5f607c0838c3fb918673
Gitweb:     https://git.kernel.org/tip/9a3b7e5e65c4b4d332df5f607c0838c3fb918673
Author:     Kirill A. Shutemov <kirill.shutemov@...ux.intel.com>
AuthorDate: Mon, 2 Apr 2018 15:10:25 +0300
Committer:  Ingo Molnar <mingo@...nel.org>
CommitDate: Tue, 3 Apr 2018 12:59:02 +0200

x86/mm: Fix documentation of module mapping range with 4-level paging

Commit:

  f5a40711fa58 ("x86/mm: Set MODULES_END to 0xffffffffff000000")

changed MODULES_END back to a fixed value, but didn't update the documentation
of memory layout for 4-level paging.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@...ux.intel.com>
Acked-by: Andrey Ryabinin <aryabinin@...tuozzo.com>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Thomas Gleixner <tglx@...utronix.de>
Fixes: f5a40711fa58 ("x86/mm: Set MODULES_END to 0xffffffffff000000")
Link: http://lkml.kernel.org/r/20180402121025.10244-1-kirill.shutemov@linux.intel.com
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
 Documentation/x86/x86_64/mm.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/x86/x86_64/mm.txt b/Documentation/x86/x86_64/mm.txt
index ea91cb61a602..5432a96d31ff 100644
--- a/Documentation/x86/x86_64/mm.txt
+++ b/Documentation/x86/x86_64/mm.txt
@@ -20,7 +20,7 @@ ffffff0000000000 - ffffff7fffffffff (=39 bits) %esp fixup stacks
 ffffffef00000000 - fffffffeffffffff (=64 GB) EFI region mapping space
 ... unused hole ...
 ffffffff80000000 - ffffffff9fffffff (=512 MB)  kernel text mapping, from phys 0
-ffffffffa0000000 - [fixmap start]   (~1526 MB) module mapping space (variable)
+ffffffffa0000000 - fffffffffeffffff (1520 MB) module mapping space
 [fixmap start]   - ffffffffff5fffff kernel-internal fixmap range
 ffffffffff600000 - ffffffffff600fff (=4 kB) legacy vsyscall ABI
 ffffffffffe00000 - ffffffffffffffff (=2 MB) unused hole