diff options
| author | Zhang Yi <yi.zhang@huawei.com> | 2023-08-11 14:36:02 +0800 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2023-08-15 09:00:33 -0400 |
| commit | e4adf8b837087b5bb57fff6827e10ec877a50f64 (patch) | |
| tree | a7cd928365c2dbcb0625da81c7938b220f05233b /fs/jbd2 | |
| parent | 9600f3e5cfd0360b10c271149032c77917baedc5 (diff) | |
jbd2: checking valid features early in journal_get_superblock()
journal_get_superblock() is used to check validity of the jounal
supberblock, so move the features checks from jbd2_journal_load() to
journal_get_superblock().
Signed-off-by: Zhang Yi <yi.zhang@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20230811063610.2980059-5-yi.zhang@huaweicloud.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'fs/jbd2')
| -rw-r--r-- | fs/jbd2/journal.c | 30 |
1 files changed, 15 insertions, 15 deletions
diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c index 95499b3184aa..4d4494b42b39 100644 --- a/fs/jbd2/journal.c +++ b/fs/jbd2/journal.c @@ -1398,6 +1398,21 @@ static int journal_get_superblock(journal_t *journal) goto out; } + /* + * If this is a V2 superblock, then we have to check the + * features flags on it. + */ + if (!jbd2_format_support_feature(journal)) + return 0; + + if ((sb->s_feature_ro_compat & + ~cpu_to_be32(JBD2_KNOWN_ROCOMPAT_FEATURES)) || + (sb->s_feature_incompat & + ~cpu_to_be32(JBD2_KNOWN_INCOMPAT_FEATURES))) { + printk(KERN_WARNING "JBD2: Unrecognised features on journal\n"); + goto out; + } + if (jbd2_has_feature_csum2(journal) && jbd2_has_feature_csum3(journal)) { /* Can't have checksum v2 and v3 at the same time! */ @@ -2060,21 +2075,6 @@ int jbd2_journal_load(journal_t *journal) journal_superblock_t *sb = journal->j_superblock; /* - * If this is a V2 superblock, then we have to check the - * features flags on it. - */ - if (jbd2_format_support_feature(journal)) { - if ((sb->s_feature_ro_compat & - ~cpu_to_be32(JBD2_KNOWN_ROCOMPAT_FEATURES)) || - (sb->s_feature_incompat & - ~cpu_to_be32(JBD2_KNOWN_INCOMPAT_FEATURES))) { - printk(KERN_WARNING - "JBD2: Unrecognised features on journal\n"); - return -EINVAL; - } - } - - /* * Create a slab for this blocksize */ err = jbd2_journal_create_slab(be32_to_cpu(sb->s_blocksize)); |