diff options
| author | Darrick J. Wong <darrick.wong@oracle.com> | 2014-09-11 11:38:21 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2014-09-11 11:38:21 -0400 |
| commit | feb8c6d3dd0f2cc0e1c3376d099cf298c5f2c2c8 (patch) | |
| tree | 1f91bf01066b1a35414e4f6291fd4ff4ab47a45f /fs | |
| parent | c7f725435adcf2ade4b9152ee33339d28f4cc330 (diff) | |
| download | op-kernel-dev-feb8c6d3dd0f2cc0e1c3376d099cf298c5f2c2c8.zip op-kernel-dev-feb8c6d3dd0f2cc0e1c3376d099cf298c5f2c2c8.tar.gz | |
jbd2: fix journal checksum feature flag handling
Clear all three journal checksum feature flags before turning on
whichever journal checksum options we want. Rearrange the error
checking so that newer flags get complained about first.
Reported-by: TR Reardon <thomas_reardon@hotmail.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/ext4/super.c | 11 | ||||
| -rw-r--r-- | fs/jbd2/journal.c | 16 |
2 files changed, 14 insertions, 13 deletions
diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 2766b8e..fb219b9 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -3237,6 +3237,10 @@ static int set_journal_csum_feature_set(struct super_block *sb) incompat = 0; } + jbd2_journal_clear_features(sbi->s_journal, + JBD2_FEATURE_COMPAT_CHECKSUM, 0, + JBD2_FEATURE_INCOMPAT_CSUM_V3 | + JBD2_FEATURE_INCOMPAT_CSUM_V2); if (test_opt(sb, JOURNAL_ASYNC_COMMIT)) { ret = jbd2_journal_set_features(sbi->s_journal, compat, 0, @@ -3249,11 +3253,8 @@ static int set_journal_csum_feature_set(struct super_block *sb) jbd2_journal_clear_features(sbi->s_journal, 0, 0, JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT); } else { - jbd2_journal_clear_features(sbi->s_journal, - JBD2_FEATURE_COMPAT_CHECKSUM, 0, - JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT | - JBD2_FEATURE_INCOMPAT_CSUM_V3 | - JBD2_FEATURE_INCOMPAT_CSUM_V2); + jbd2_journal_clear_features(sbi->s_journal, 0, 0, + JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT); } return ret; diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c index 415041c..e4dc747 100644 --- a/fs/jbd2/journal.c +++ b/fs/jbd2/journal.c @@ -1522,14 +1522,6 @@ static int journal_get_superblock(journal_t *journal) goto out; } - if (jbd2_journal_has_csum_v2or3(journal) && - JBD2_HAS_COMPAT_FEATURE(journal, JBD2_FEATURE_COMPAT_CHECKSUM)) { - /* Can't have checksum v1 and v2 on at the same time! */ - printk(KERN_ERR "JBD2: Can't enable checksumming v1 and v2 " - "at the same time!\n"); - goto out; - } - if (JBD2_HAS_INCOMPAT_FEATURE(journal, JBD2_FEATURE_INCOMPAT_CSUM_V2) && JBD2_HAS_INCOMPAT_FEATURE(journal, JBD2_FEATURE_INCOMPAT_CSUM_V3)) { /* Can't have checksum v2 and v3 at the same time! */ @@ -1538,6 +1530,14 @@ static int journal_get_superblock(journal_t *journal) goto out; } + if (jbd2_journal_has_csum_v2or3(journal) && + JBD2_HAS_COMPAT_FEATURE(journal, JBD2_FEATURE_COMPAT_CHECKSUM)) { + /* Can't have checksum v1 and v2 on at the same time! */ + printk(KERN_ERR "JBD2: Can't enable checksumming v1 and v2/3 " + "at the same time!\n"); + goto out; + } + if (!jbd2_verify_csum_type(journal, sb)) { printk(KERN_ERR "JBD2: Unknown checksum type\n"); goto out; |
