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 <[email protected]>
Signed-off-by: Andreas Dilger <[email protected]>
Signed-off-by: Mingming Cao <[email protected]>
Signed-off-by: Laurent Vivier <[email protected]>
---
fs/ext4/super.c | 7 7 + 0 - 0 !
1 file changed, 7 insertions(+)
Index: linux-2.6/fs/ext4/super.c
===================================================================
--- linux-2.6.orig/fs/ext4/super.c 2007-07-11 09:36:00.000000000 -0500
+++ linux-2.6/fs/ext4/super.c 2007-07-11 09:36:20.000000000 -0500
@@ -1804,6 +1804,13 @@ static int ext4_fill_super (struct super
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)) {
-
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