- patches.fixes/patch-2.6.11-rc1: 2.6.11-rc1.

[linux-flexiantxendom0-3.2.10.git] / fs / jbd / checkpoint.c

diff --git a/fs/jbd/checkpoint.c b/fs/jbd/checkpoint.c
index 85c8741..98d8304 100644 (file)
--- a/fs/jbd/checkpoint.c
+++ b/fs/jbd/checkpoint.c
@@ -333,6 +333,10 @@ int log_do_checkpoint(journal_t *journal)
                                break;
                        }
                        retry = __flush_buffer(journal, jh, bhs, &batch_count, &drop_count);
+                       if (cond_resched_lock(&journal->j_list_lock)) {
+                               retry = 1;
+                               break;
+                       }
                } while (jh != last_jh && !retry);
 
                if (batch_count)
@@ -487,6 +491,14 @@ int __journal_clean_checkpoint_list(journal_t *journal)
                                /* Use trylock because of the ranknig */
                                if (jbd_trylock_bh_state(jh2bh(jh)))
                                        ret += __try_to_free_cp_buf(jh);
+                               /*
+                                * This function only frees up some memory
+                                * if possible so we dont have an obligation
+                                * to finish processing. Bail out if preemption
+                                * requested:
+                                */
+                               if (need_resched())
+                                       goto out;
                        } while (jh != last_jh);
                }
        } while (transaction != last_transaction);