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authorJoel Becker <joel.becker@oracle.com>2008-09-11 15:53:07 -0700
committerMark Fasheh <mfasheh@suse.com>2009-01-05 08:40:31 -0800
commit50655ae9e91d272d48997bada59efe166aa5e343 (patch)
treeca821943897781fe4852c6ac447ccb4760ec8c65 /fs/ocfs2/journal.h
parentd6b32bbb3eae3fb787f1c33bf9f767ca1ddeb208 (diff)
downloadop-kernel-dev-50655ae9e91d272d48997bada59efe166aa5e343.zip
op-kernel-dev-50655ae9e91d272d48997bada59efe166aa5e343.tar.gz
ocfs2: Add journal_access functions with jbd2 triggers.
We create wrappers for ocfs2_journal_access() that are specific to the type of metadata block. This allows us to associate jbd2 commit triggers with the block. The triggers will compute metadata ecc in a future commit. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
Diffstat (limited to 'fs/ocfs2/journal.h')
-rw-r--r--fs/ocfs2/journal.h31
1 files changed, 26 insertions, 5 deletions
diff --git a/fs/ocfs2/journal.h b/fs/ocfs2/journal.h
index 37013bf9..bca370d 100644
--- a/fs/ocfs2/journal.h
+++ b/fs/ocfs2/journal.h
@@ -212,9 +212,12 @@ static inline void ocfs2_checkpoint_inode(struct inode *inode)
* ocfs2_extend_trans - Extend a handle by nblocks credits. This may
* commit the handle to disk in the process, but will
* not release any locks taken during the transaction.
- * ocfs2_journal_access - Notify the handle that we want to journal this
+ * ocfs2_journal_access* - Notify the handle that we want to journal this
* buffer. Will have to call ocfs2_journal_dirty once
* we've actually dirtied it. Type is one of . or .
+ * Always call the specific flavor of
+ * ocfs2_journal_access_*() unless you intend to
+ * manage the checksum by hand.
* ocfs2_journal_dirty - Mark a journalled buffer as having dirty data.
* ocfs2_jbd2_file_inode - Mark an inode so that its data goes out before
* the current handle commits.
@@ -244,10 +247,28 @@ int ocfs2_extend_trans(handle_t *handle, int nblocks);
#define OCFS2_JOURNAL_ACCESS_WRITE 1
#define OCFS2_JOURNAL_ACCESS_UNDO 2
-int ocfs2_journal_access(handle_t *handle,
- struct inode *inode,
- struct buffer_head *bh,
- int type);
+/* ocfs2_inode */
+int ocfs2_journal_access_di(handle_t *handle, struct inode *inode,
+ struct buffer_head *bh, int type);
+/* ocfs2_extent_block */
+int ocfs2_journal_access_eb(handle_t *handle, struct inode *inode,
+ struct buffer_head *bh, int type);
+/* ocfs2_group_desc */
+int ocfs2_journal_access_gd(handle_t *handle, struct inode *inode,
+ struct buffer_head *bh, int type);
+/* ocfs2_xattr_block */
+int ocfs2_journal_access_xb(handle_t *handle, struct inode *inode,
+ struct buffer_head *bh, int type);
+/* quota blocks */
+int ocfs2_journal_access_dq(handle_t *handle, struct inode *inode,
+ struct buffer_head *bh, int type);
+/* dirblock */
+int ocfs2_journal_access_db(handle_t *handle, struct inode *inode,
+ struct buffer_head *bh, int type);
+/* Anything that has no ecc */
+int ocfs2_journal_access(handle_t *handle, struct inode *inode,
+ struct buffer_head *bh, int type);
+
/*
* A word about the journal_access/journal_dirty "dance". It is
* entirely legal to journal_access a buffer more than once (as long
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