]> git.karo-electronics.de Git - mv-sheeva.git/blobdiff - include/linux/jbd2.h
NLM: nlm_privileged_requester() doesn't recognize mapped loopback address
[mv-sheeva.git] / include / linux / jbd2.h
index c7d106ef22e2f535f2c78f470a300b5fb7e8b930..34456476e761330686a4e6d6afa98cf570fc94de 100644 (file)
@@ -329,6 +329,7 @@ enum jbd_state_bits {
        BH_State,               /* Pins most journal_head state */
        BH_JournalHead,         /* Pins bh->b_private and jh->b_bh */
        BH_Unshadow,            /* Dummy bit, for BJ_Shadow wakeup filtering */
+       BH_JBDPrivateStart,     /* First bit available for private use by FS */
 };
 
 BUFFER_FNS(JBD, jbd)
@@ -1007,6 +1008,35 @@ int __jbd2_journal_clean_checkpoint_list(journal_t *journal);
 int __jbd2_journal_remove_checkpoint(struct journal_head *);
 void __jbd2_journal_insert_checkpoint(struct journal_head *, transaction_t *);
 
+
+/*
+ * Triggers
+ */
+
+struct jbd2_buffer_trigger_type {
+       /*
+        * Fired just before a buffer is written to the journal.
+        * mapped_data is a mapped buffer that is the frozen data for
+        * commit.
+        */
+       void (*t_commit)(struct jbd2_buffer_trigger_type *type,
+                        struct buffer_head *bh, void *mapped_data,
+                        size_t size);
+
+       /*
+        * Fired during journal abort for dirty buffers that will not be
+        * committed.
+        */
+       void (*t_abort)(struct jbd2_buffer_trigger_type *type,
+                       struct buffer_head *bh);
+};
+
+extern void jbd2_buffer_commit_trigger(struct journal_head *jh,
+                                      void *mapped_data,
+                                      struct jbd2_buffer_trigger_type *triggers);
+extern void jbd2_buffer_abort_trigger(struct journal_head *jh,
+                                     struct jbd2_buffer_trigger_type *triggers);
+
 /* Buffer IO */
 extern int
 jbd2_journal_write_metadata_buffer(transaction_t         *transaction,
@@ -1045,6 +1075,8 @@ extern int         jbd2_journal_extend (handle_t *, int nblocks);
 extern int      jbd2_journal_get_write_access(handle_t *, struct buffer_head *);
 extern int      jbd2_journal_get_create_access (handle_t *, struct buffer_head *);
 extern int      jbd2_journal_get_undo_access(handle_t *, struct buffer_head *);
+void            jbd2_journal_set_triggers(struct buffer_head *,
+                                          struct jbd2_buffer_trigger_type *type);
 extern int      jbd2_journal_dirty_metadata (handle_t *, struct buffer_head *);
 extern void     jbd2_journal_release_buffer (handle_t *, struct buffer_head *);
 extern int      jbd2_journal_forget (handle_t *, struct buffer_head *);