linux-ext4 - [PATCH-e2fsprogs] Allow clearing flex

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-next>] [day] [month] [year] [list]

Message-Id: <1235982524-7673-1-git-send-email-bergwolf@gmail.com>
Date:	Mon,  2 Mar 2009 16:28:44 +0800
From:	Peng Tao <bergwolf@...il.com>
To:	linux-ext4@...r.kernel.org
Cc:	Peng Tao <bergwolf@...il.com>
Subject: [PATCH-e2fsprogs] Allow clearing flex_bg if only one group per flex

This can be caused by tune2fs -O flex_bg. And clearing flex_bg on such
partitions is harmless.

Signed-off-by: Peng Tao <bergwolf@...il.com>
---
 misc/tune2fs.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/misc/tune2fs.c b/misc/tune2fs.c
index 887a702..f7373af 100644
--- a/misc/tune2fs.c
+++ b/misc/tune2fs.c
@@ -407,7 +407,8 @@ static void update_feature_set(ext2_filsys fs, char *features)
 			uuid_generate((unsigned char *) sb->s_hash_seed);
 	}
 
-	if (FEATURE_OFF(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_FLEX_BG)) {
+	if (FEATURE_OFF(E2P_FEATURE_INCOMPAT, EXT4_FEATURE_INCOMPAT_FLEX_BG) &&
+			    sb->s_log_groups_per_flex) {
 		if (ext2fs_check_desc(fs)) {
 			fputs(_("Clearing the flex_bg flag would "
 				"cause the the filesystem to be\n"
-- 
1.6.1.3

--
To unsubscribe from this list: send the line "unsubscribe linux-ext4" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html