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@xxxxxxxxxx>
---
fs/ext4/super.c | 11 +++++++++++
1 file changed, 11 insertions(+)
Index: linux-2.6.22-rc3/fs/ext4/super.c
===================================================================
--- linux-2.6.22-rc3.orig/fs/ext4/super.c 2007-06-04 11:01:20.028360650 -0500
+++ linux-2.6.22-rc3/fs/ext4/super.c 2007-06-04 11:05:11.389126418 -0500
@@ -1824,6 +1824,17 @@ static int ext4_fill_super (struct super
goto failed_mount3;
}
+ /*
+ * Make sure to set JBD2_FEATURE_INCOMPAT_64BIT on filesystems
+ * with more that 32-bit block counts
+ */
+ if(es->s_blocks_count_hi &&
+ !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)) {
Thanks
-JRS
-
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