xfs: Refactor xfs_ticket_alloc() to extract a new helper
Refactor xlog_ticket_alloc() to extract a new helper, i.e.
xfs_log_calc_unit_res().
This helper would be used to calculate the total log reservation
size by adding extra log operation/transation headers for a new
log ticket.
Signed-off-by: Jie Liu <jeff.liu@oracle.com>
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Mark Tinguely <tinguely@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
diff --git a/fs/xfs/xfs_log_format.h b/fs/xfs/xfs_log_format.h
index 198381e..cc08f59 100644
--- a/fs/xfs/xfs_log_format.h
+++ b/fs/xfs/xfs_log_format.h
@@ -18,6 +18,8 @@
#ifndef __XFS_LOG_FORMAT_H__
#define __XFS_LOG_FORMAT_H__
+struct xfs_mount;
+
/*
* On-disk Log Format definitions.
*
@@ -834,4 +836,6 @@
__be32 icl_gen; /* inode generation number to use */
};
+int xfs_log_calc_unit_res(struct xfs_mount *mp, int unit_bytes);
+
#endif /* __XFS_LOG_FORMAT_H__ */