linux-kernel - [PATCH] mm/mmap: kill hook arch_rebalance

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Date:	Sun, 03 Apr 2016 08:46:15 +0300
From:	Konstantin Khlebnikov <koct9i@...il.com>
To:	linux-mm@...ck.org, Andrew Morton <akpm@...ux-foundation.org>
Cc:	linux-arch@...r.kernel.org,
	Martin Schwidefsky <schwidefsky@...ibm.com>,
	linux-kernel@...r.kernel.org
Subject: [PATCH] mm/mmap: kill hook arch_rebalance_pgtables

Nobody use it.

Signed-off-by: Konstantin Khlebnikov <koct9i@...il.com>
---
 mm/mmap.c |    5 -----
 1 file changed, 5 deletions(-)

diff --git a/mm/mmap.c b/mm/mmap.c
index bd2e1a533bc1..fba246b8f1a5 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -55,10 +55,6 @@
 #define arch_mmap_check(addr, len, flags)	(0)
 #endif
 
-#ifndef arch_rebalance_pgtables
-#define arch_rebalance_pgtables(addr, len)		(addr)
-#endif
-
 #ifdef CONFIG_HAVE_ARCH_MMAP_RND_BITS
 const int mmap_rnd_bits_min = CONFIG_ARCH_MMAP_RND_BITS_MIN;
 const int mmap_rnd_bits_max = CONFIG_ARCH_MMAP_RND_BITS_MAX;
@@ -1911,7 +1907,6 @@ get_unmapped_area(struct file *file, unsigned long addr, unsigned long len,
 	if (offset_in_page(addr))
 		return -EINVAL;
 
-	addr = arch_rebalance_pgtables(addr, len);
 	error = security_mmap_addr(addr);
 	return error ? error : addr;
 }