diff options
Diffstat (limited to 'fs/jbd/commit.c')
| -rw-r--r-- | fs/jbd/commit.c | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/fs/jbd/commit.c b/fs/jbd/commit.c index 002ad2bbc76..0971814c38b 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); } |