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authorZhang Yi <yi.zhang@huawei.com>2023-08-11 14:36:00 +0800
committerTheodore Ts'o <tytso@mit.edu>2023-08-15 09:00:33 -0400
commitc30713084ba5b6fa343129613ec349ea91f0c458 (patch)
tree04e3f69105b0ebda0e25c77ac9866ee38a49ed56 /fs/jbd2
parent29a511e49f33426c8d24700db4842234a84678b2 (diff)
downloadlinux-c30713084ba5b6fa343129613ec349ea91f0c458.tar.gz
jbd2: move load_superblock() into journal_init_common()
Move the call to load_superblock() from jbd2_journal_load() and jbd2_journal_wipe() early into journal_init_common(), the journal superblock gets read and the in-memory journal_t structure gets initialised after calling jbd2_journal_init_{dev,inode}, it's safe to do following initialization according to it. Signed-off-by: Zhang Yi <yi.zhang@huawei.com> Reviewed-by: Jan Kara <jack@suse.cz> Link: https://lore.kernel.org/r/20230811063610.2980059-3-yi.zhang@huaweicloud.com Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'fs/jbd2')
-rw-r--r--fs/jbd2/journal.c16
1 files changed, 5 insertions, 11 deletions
diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
index c3f9689096184..98b43a9dcabe1 100644
--- a/fs/jbd2/journal.c
+++ b/fs/jbd2/journal.c
@@ -1582,6 +1582,10 @@ static journal_t *journal_init_common(struct block_device *bdev,
journal->j_sb_buffer = bh;
journal->j_superblock = (journal_superblock_t *)bh->b_data;
+ err = load_superblock(journal);
+ if (err)
+ goto err_cleanup;
+
journal->j_shrink_transaction = NULL;
journal->j_shrinker.scan_objects = jbd2_journal_shrink_scan;
journal->j_shrinker.count_objects = jbd2_journal_shrink_count;
@@ -2056,13 +2060,7 @@ EXPORT_SYMBOL(jbd2_journal_update_sb_errno);
int jbd2_journal_load(journal_t *journal)
{
int err;
- journal_superblock_t *sb;
-
- err = load_superblock(journal);
- if (err)
- return err;
-
- sb = journal->j_superblock;
+ journal_superblock_t *sb = journal->j_superblock;
/*
* If this is a V2 superblock, then we have to check the
@@ -2523,10 +2521,6 @@ int jbd2_journal_wipe(journal_t *journal, int write)
J_ASSERT (!(journal->j_flags & JBD2_LOADED));
- err = load_superblock(journal);
- if (err)
- return err;
-
if (!journal->j_tail)
goto no_recovery;