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Date: Sun, 01 Jul 2007 03:36:32 -0400 From: Mingming Cao <cmm@...ibm.com> To: linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org, linux-ext4@...r.kernel.org Subject: [EXT4 set 2][PATCH 3/5] cleanups: set_jbd2_64bit_feature for >16TB ext4 fs Set the journals JBD2_FEATURE_INCOMPAT_64BIT on devices with more than 32bit block sizes during mount time. This ensure proper record lenth when writing to the journal. Signed-off-by: Jose R. Santos <jrs@...ibm.com> Signed-off-by: Andreas Dilger <adilger@...sterfs.com> Signed-off-by: Mingming Cao <cmm@...ibm.com> Signed-off-by: Laurent Vivier <Laurent.Vivier@...l.net> --- fs/ext4/super.c | 11 +++++++++++ 1 file changed, 11 insertions(+) Index: linux-2.6.22-rc4/fs/ext4/super.c =================================================================== --- linux-2.6.22-rc4.orig/fs/ext4/super.c 2007-06-11 16:15:54.000000000 -0700 +++ linux-2.6.22-rc4/fs/ext4/super.c 2007-06-11 16:16:10.000000000 -0700 @@ -1804,6 +1804,13 @@ goto failed_mount3; } + if (ext4_blocks_count(es) > 0xffffffffULL && + !jbd2_journal_set_features(EXT4_SB(sb)->s_journal, 0, 0, + JBD2_FEATURE_INCOMPAT_64BIT)) { + printk(KERN_ERR "ext4: Failed to set 64-bit journal feature\n"); + goto failed_mount4; + } + /* We have now updated the journal if required, so we can * validate the data journaling mode. */ switch (test_opt(sb, DATA_FLAGS)) { - 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
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