Re: [EXT4 set 2][PATCH 3/5] cleanups: set_jbd2_64bit_feature for>16TB ext4 fs

From: Andrew Morton
Date: Tue Jul 10 2007 - 19:31:52 EST


On Sun, 01 Jul 2007 03:36:32 -0400
Mingming Cao <cmm@xxxxxxxxxx> wrote:

> 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.

This patch isn't in Ted's kernel.org directory and hasn't been in -mm.
Where did it come from? Is something amiss with ext4 patch management?

> Signed-off-by: Jose R. Santos <jrs@xxxxxxxxxx>
> Signed-off-by: Andreas Dilger <adilger@xxxxxxxxxxxxx>
> Signed-off-by: Mingming Cao <cmm@xxxxxxxxxx>
> Signed-off-by: Laurent Vivier <Laurent.Vivier@xxxxxxxx>
> ---
> 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 @@

Please prepare patches using `diff -p'

> 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;
> + }

It is not appropriate for the text "ext4" to appear in a JBD2 message.

> /* We have now updated the journal if required, so we can
> * validate the data journaling mode. */
> switch (test_opt(sb, DATA_FLAGS)) {


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