From: Zhang Yi yi.zhang@huawei.com
mainline inclusion from mainline-5.14-rc1 commit 16aa4c9a1fbe763c147a964cdc1f5be8ed98ed13 category: bugfix bugzilla: 50788 CVE: NA ---------------------------
Export jbd2_journal_[un]register_shrinker() to fix this error when ext4 is built as a module:
ERROR: modpost: "jbd2_journal_unregister_shrinker" undefined! ERROR: modpost: "jbd2_journal_register_shrinker" undefined!
Fixes: 4ba3fcdde7e3 ("jbd2,ext4: add a shrinker to release checkpointed buffers") Signed-off-by: Zhang Yi yi.zhang@huawei.com Reviewed-by: Jan Kara jack@suse.cz Link: https://lore.kernel.org/r/20210630083638.140218-1-yi.zhang@huawei.com Signed-off-by: Theodore Ts'o tytso@mit.edu Reviewed-by: Yang Erkun yangerkun@huawei.com Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- fs/jbd2/journal.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c index 9dce0e9af5ac4..e96c379f54162 100644 --- a/fs/jbd2/journal.c +++ b/fs/jbd2/journal.c @@ -1815,6 +1815,7 @@ int jbd2_journal_register_shrinker(journal_t *journal)
return 0; } +EXPORT_SYMBOL(jbd2_journal_register_shrinker);
/** * jbd2_journal_unregister_shrinker() @@ -1827,6 +1828,7 @@ void jbd2_journal_unregister_shrinker(journal_t *journal) percpu_counter_destroy(&journal->j_jh_shrink_count); unregister_shrinker(&journal->j_shrinker); } +EXPORT_SYMBOL(jbd2_journal_unregister_shrinker);
/** * void jbd2_journal_destroy() - Release a journal_t structure.