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-rw-r--r--fs/jbd/commit.c21
1 files changed, 16 insertions, 5 deletions
diff --git a/fs/jbd/commit.c b/fs/jbd/commit.c
index 002ad2bbc769..0971814c38b8 100644
--- a/fs/jbd/commit.c
+++ b/fs/jbd/commit.c
@@ -790,11 +790,22 @@ restart_loop:
jbd_unlock_bh_state(bh);
} else {
J_ASSERT_BH(bh, !buffer_dirty(bh));
- J_ASSERT_JH(jh, jh->b_next_transaction == NULL);
- __journal_unfile_buffer(jh);
- jbd_unlock_bh_state(bh);
- journal_remove_journal_head(bh); /* needs a brelse */
- release_buffer_page(bh);
+ /* The buffer on BJ_Forget list and not jbddirty means
+ * it has been freed by this transaction and hence it
+ * could not have been reallocated until this
+ * transaction has committed. *BUT* it could be
+ * reallocated once we have written all the data to
+ * disk and before we process the buffer on BJ_Forget
+ * list. */
+ JBUFFER_TRACE(jh, "refile or unfile freed buffer");
+ __journal_refile_buffer(jh);
+ if (!jh->b_transaction) {
+ jbd_unlock_bh_state(bh);
+ /* needs a brelse */
+ journal_remove_journal_head(bh);
+ release_buffer_page(bh);
+ } else
+ jbd_unlock_bh_state(bh);
}
cond_resched_lock(&journal->j_list_lock);
}