From: Zhang Yi yi.zhang@huawei.com
maillist inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I70WHL CVE: NA
Reference: https://lore.kernel.org/linux-ext4/20230606135928.434610-1-yi.zhang@huaweicl...
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Since t_checkpoint_io_list was stop using in jbd2_log_do_checkpoint() now, it's time to remove the whole t_checkpoint_io_list logic.
Signed-off-by: Zhang Yi yi.zhang@huawei.com Reviewed-by: Jan Kara jack@suse.cz Conflits: include/linux/jbd2.h [ Don't remove t_checkpoint_io_list for KABI broken. ] Signed-off-by: Zhihao Cheng chengzhihao1@huawei.com --- fs/jbd2/checkpoint.c | 42 ++---------------------------------------- fs/jbd2/commit.c | 3 +-- 2 files changed, 3 insertions(+), 42 deletions(-)
diff --git a/fs/jbd2/checkpoint.c b/fs/jbd2/checkpoint.c index 3b1342219f1d..6d27ba64e372 100644 --- a/fs/jbd2/checkpoint.c +++ b/fs/jbd2/checkpoint.c @@ -27,7 +27,7 @@ * * Called with j_list_lock held. */ -static inline void __buffer_unlink_first(struct journal_head *jh) +static inline void __buffer_unlink(struct journal_head *jh) { transaction_t *transaction = jh->b_cp_transaction;
@@ -40,23 +40,6 @@ static inline void __buffer_unlink_first(struct journal_head *jh) } }
-/* - * Unlink a buffer from a transaction checkpoint(io) list. - * - * Called with j_list_lock held. - */ -static inline void __buffer_unlink(struct journal_head *jh) -{ - transaction_t *transaction = jh->b_cp_transaction; - - __buffer_unlink_first(jh); - if (transaction->t_checkpoint_io_list == jh) { - transaction->t_checkpoint_io_list = jh->b_cpnext; - if (transaction->t_checkpoint_io_list == jh) - transaction->t_checkpoint_io_list = NULL; - } -} - /* * Check a checkpoint buffer could be release or not. * @@ -503,15 +486,6 @@ unsigned long jbd2_journal_shrink_checkpoint_list(journal_t *journal, break; if (need_resched() || spin_needbreak(&journal->j_list_lock)) break; - if (released) - continue; - - nr_freed += journal_shrink_one_cp_list(transaction->t_checkpoint_io_list, - nr_to_scan, &released); - if (*nr_to_scan == 0) - break; - if (need_resched() || spin_needbreak(&journal->j_list_lock)) - break; } while (transaction != last_transaction);
if (transaction != last_transaction) { @@ -566,17 +540,6 @@ void __jbd2_journal_clean_checkpoint_list(journal_t *journal, bool destroy) */ if (need_resched()) return; - if (ret) - continue; - /* - * It is essential that we are as careful as in the case of - * t_checkpoint_list with removing the buffer from the list as - * we can possibly see not yet submitted buffers on io_list - */ - ret = journal_clean_one_cp_list(transaction-> - t_checkpoint_io_list, destroy); - if (need_resched()) - return; /* * Stop scanning if we couldn't free the transaction. This * avoids pointless scanning of transactions which still @@ -661,7 +624,7 @@ int __jbd2_journal_remove_checkpoint(struct journal_head *jh) jbd2_journal_put_journal_head(jh);
/* Is this transaction empty? */ - if (transaction->t_checkpoint_list || transaction->t_checkpoint_io_list) + if (transaction->t_checkpoint_list) return 0;
/* @@ -753,7 +716,6 @@ void __jbd2_journal_drop_transaction(journal_t *journal, transaction_t *transact J_ASSERT(transaction->t_forget == NULL); J_ASSERT(transaction->t_shadow_list == NULL); J_ASSERT(transaction->t_checkpoint_list == NULL); - J_ASSERT(transaction->t_checkpoint_io_list == NULL); J_ASSERT(atomic_read(&transaction->t_updates) == 0); J_ASSERT(journal->j_committing_transaction != transaction); J_ASSERT(journal->j_running_transaction != transaction); diff --git a/fs/jbd2/commit.c b/fs/jbd2/commit.c index fa24b407a9dc..f082836e6d40 100644 --- a/fs/jbd2/commit.c +++ b/fs/jbd2/commit.c @@ -1184,8 +1184,7 @@ void jbd2_journal_commit_transaction(journal_t *journal) spin_lock(&journal->j_list_lock); commit_transaction->t_state = T_FINISHED; /* Check if the transaction can be dropped now that we are finished */ - if (commit_transaction->t_checkpoint_list == NULL && - commit_transaction->t_checkpoint_io_list == NULL) { + if (commit_transaction->t_checkpoint_list == NULL) { __jbd2_journal_drop_transaction(journal, commit_transaction); jbd2_journal_free_transaction(commit_transaction); }