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authorJose R. Santos <jrs@us.ibm.com>2007-07-18 08:37:25 -0400
committerTheodore Ts'o <tytso@mit.edu>2007-07-18 08:37:25 -0400
commiteb40a09c679d7f9709f7087add57f2e1c7122bb3 (patch)
tree63037cd1cba5a7abd6d6ce0d74c0137ddae51dfb /fs/ext4
parentc29c0ae7f282828da3695167ed870131798348d9 (diff)
downloadop-kernel-dev-eb40a09c679d7f9709f7087add57f2e1c7122bb3.zip
op-kernel-dev-eb40a09c679d7f9709f7087add57f2e1c7122bb3.tar.gz
ext4: Set the journal JBD2_FEATURE_INCOMPAT_64BIT on large devices
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@us.ibm.com> Signed-off-by: Andreas Dilger <adilger@clusterfs.com> Signed-off-by: Mingming Cao <cmm@us.ibm.com> Signed-off-by: Laurent Vivier <Laurent.Vivier@bull.net> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'fs/ext4')
-rw-r--r--fs/ext4/super.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 9c8baf4..af08351 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -1813,6 +1813,13 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent)
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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