jbd2: remove unused 'JBD2_CHECKPOINT_IO_ERROR' and 'j_atomic_flags'

Since 'JBD2_CHECKPOINT_IO_ERROR' and j_atomic_flags' are not useful
anymore after fs dev's errseq is imported into jbd2, just remove them.

Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20231213013224.2100050-4-chengzhihao1@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>

diff --git a/fs/jbd2/checkpoint.c b/fs/jbd2/checkpoint.c
index 118699f..1c97e64 100644 (file)
--- a/fs/jbd2/checkpoint.c
+++ b/fs/jbd2/checkpoint.c
@@ -556,7 +556,6 @@ int __jbd2_journal_remove_checkpoint(struct journal_head *jh)
        struct transaction_chp_stats_s *stats;
        transaction_t *transaction;
        journal_t *journal;
-       struct buffer_head *bh = jh2bh(jh);
 
        JBUFFER_TRACE(jh, "entry");
 
@@ -569,16 +568,6 @@ int __jbd2_journal_remove_checkpoint(struct journal_head *jh)
 
        JBUFFER_TRACE(jh, "removing from transaction");
 
-       /*
-        * If we have failed to write the buffer out to disk, the filesystem
-        * may become inconsistent. We cannot abort the journal here since
-        * we hold j_list_lock and we have to be careful about races with
-        * jbd2_journal_destroy(). So mark the writeback IO error in the
-        * journal here and we abort the journal later from a better context.
-        */
-       if (buffer_write_io_error(bh))
-               set_bit(JBD2_CHECKPOINT_IO_ERROR, &journal->j_atomic_flags);
-
        __buffer_unlink(jh);
        jh->b_cp_transaction = NULL;
        percpu_counter_dec(&journal->j_checkpoint_jh_count);

diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h
index cea1aa7..971f3e8 100644 (file)
--- a/include/linux/jbd2.h
+++ b/include/linux/jbd2.h
@@ -755,11 +755,6 @@ struct journal_s
         */
        unsigned long           j_flags;
 
-       /**
-        * @j_atomic_flags: Atomic journaling state flags.
-        */
-       unsigned long           j_atomic_flags;
-
        /**
         * @j_errno:
         *
@@ -1406,12 +1401,6 @@ JBD2_FEATURE_INCOMPAT_FUNCS(fast_commit, FAST_COMMIT)
 #define JBD2_JOURNAL_FLUSH_VALID       (JBD2_JOURNAL_FLUSH_DISCARD | \
                                        JBD2_JOURNAL_FLUSH_ZEROOUT)
 
-/*
- * Journal atomic flag definitions
- */
-#define JBD2_CHECKPOINT_IO_ERROR       0x001   /* Detect io error while writing
-                                                * buffer back to disk */
-
 /*
  * Function declarations for the journaling transaction and buffer
  * management