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>] [<thread-prev] [day] [month] [year] [list]
Message-ID: <20250901105128.14987-4-hans.holmberg@wdc.com>
Date: Mon, 1 Sep 2025 10:52:05 +0000
From: Hans Holmberg <Hans.Holmberg@....com>
To: "linux-xfs@...r.kernel.org" <linux-xfs@...r.kernel.org>
CC: Carlos Maiolino <cem@...nel.org>, Dave Chinner <david@...morbit.com>,
	"Darrick J . Wong" <djwong@...nel.org>, hch <hch@....de>,
	"linux-fsdevel@...r.kernel.org" <linux-fsdevel@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, Hans Holmberg
	<Hans.Holmberg@....com>
Subject: [PATCH 3/3] xfs: adjust the hint based zone allocation policy

As we really can't make any general assumptions about files that don't
have any life time hint set or are set to "NONE", adjust the allocation
policy to avoid co-locating data from those files with files with a set
life time.

Signed-off-by: Hans Holmberg <hans.holmberg@....com>
---
 fs/xfs/xfs_zone_alloc.c | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/fs/xfs/xfs_zone_alloc.c b/fs/xfs/xfs_zone_alloc.c
index ff24769b8870..23a027387933 100644
--- a/fs/xfs/xfs_zone_alloc.c
+++ b/fs/xfs/xfs_zone_alloc.c
@@ -512,17 +512,11 @@ static const unsigned int
 xfs_zoned_hint_score[WRITE_LIFE_HINT_NR][WRITE_LIFE_HINT_NR] = {
 	[WRITE_LIFE_NOT_SET]	= {
 		[WRITE_LIFE_NOT_SET]	= XFS_ZONE_ALLOC_OK,
-		[WRITE_LIFE_NONE]	= XFS_ZONE_ALLOC_OK,
-		[WRITE_LIFE_SHORT]	= XFS_ZONE_ALLOC_OK,
 	},
 	[WRITE_LIFE_NONE]	= {
-		[WRITE_LIFE_NOT_SET]	= XFS_ZONE_ALLOC_OK,
-		[WRITE_LIFE_NONE]	= XFS_ZONE_ALLOC_GOOD,
-		[WRITE_LIFE_SHORT]	= XFS_ZONE_ALLOC_GOOD,
+		[WRITE_LIFE_NONE]	= XFS_ZONE_ALLOC_OK,
 	},
 	[WRITE_LIFE_SHORT]	= {
-		[WRITE_LIFE_NOT_SET]	= XFS_ZONE_ALLOC_GOOD,
-		[WRITE_LIFE_NONE]	= XFS_ZONE_ALLOC_GOOD,
 		[WRITE_LIFE_SHORT]	= XFS_ZONE_ALLOC_GOOD,
 	},
 	[WRITE_LIFE_MEDIUM]	= {
-- 
2.34.1

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ