linux-ext4 - [PATCH v1 10/10] Add "hash

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Message-ID: <20140923103106.18356.qmail@ns.horizon.com>
Date:	23 Sep 2014 06:31:06 -0400
From:	"George Spelvin" <linux@...izon.com>
To:	linux-ext4@...r.kernel.org
Cc:	linux@...izon.com, tytso@....edu
Subject: [PATCH v1 10/10] Add "hash_alg=siphash" support

The #define name refers specifically to SipHash-2-4, but keep the
parameter name short.

Signed-off-by: George Spelvin <linux@...izon.com>
---
The other half of the implementation.

 lib/e2p/hashstr.c     | 1 +
 misc/mke2fs.conf.5.in | 3 ++-
 misc/tune2fs.8.in     | 3 ++-
 3 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/lib/e2p/hashstr.c b/lib/e2p/hashstr.c
index a73758c..bd4a8da 100644
--- a/lib/e2p/hashstr.c
+++ b/lib/e2p/hashstr.c
@@ -27,6 +27,7 @@ static struct hash hash_list[] = {
 	{	EXT2_HASH_LEGACY, 	"legacy" },
 	{	EXT2_HASH_HALF_MD4, 	"half_md4" },
 	{	EXT2_HASH_TEA, 		"tea" },
+	{	EXT2_HASH_SIPHASH24,	"siphash" },
 	{	0, 0 },
 };
 
diff --git a/misc/mke2fs.conf.5.in b/misc/mke2fs.conf.5.in
index ad6c11b..257bddd 100644
--- a/misc/mke2fs.conf.5.in
+++ b/misc/mke2fs.conf.5.in
@@ -173,8 +173,9 @@ new filesystems with hashed b-tree directories.  Valid algorithms
 accepted are:
 .IR legacy ,
 .IR half_md4 ,
+.IR tea ,
 and
-.IR tea .
+.IR siphash .
 .TP
 .I inode_ratio
 This relation specifies the default inode ratio if the user does not
diff --git a/misc/tune2fs.8.in b/misc/tune2fs.8.in
index c50d475..f25f177 100644
--- a/misc/tune2fs.8.in
+++ b/misc/tune2fs.8.in
@@ -209,8 +209,9 @@ Set the default hash algorithm used for filesystems with hashed b-tree
 directories.  Valid algorithms accepted are:
 .IR legacy ,
 .IR half_md4 ,
+.IR tea ,
 and
-.IR tea .
+.IR siphash .
 .TP
 .BI mount_opts= mount_option_string
 Set a set of default mount options which will be used when the file
-- 
2.1.0

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