jbd: change the field "b_cow_tid" of struct journal_head from type unsigned to tid_t

In the definition of struct journal_head, the comment for
the field "unsigned b_cow_tid" says the field tracks the
last transaction id in which this buffer has been cowed.

In the header part of file journal-head.h, it defines
   typedef unsigned int  tid_t;
We should use type tid_t to define transaction id fields.

Change the field "b_cow_tid" of struct journal_head from
type unsigned to tid_t.

Signed-off-by: Wang Sheng-Hui <[email protected]>
Acked-by: Amir Goldstein <[email protected]>
Signed-off-by: Jan Kara <[email protected]>

diff --git a/include/linux/journal-head.h b/include/linux/journal-head.h
index 44e95d0a721f1eb50db7e41df52a15403ddf814d..423cb6d78ee0bc9958d63a592f53c7d5a17fa874 100644 (file)
--- a/include/linux/journal-head.h
+++ b/include/linux/journal-head.h
@@ -45,7 +45,7 @@ struct journal_head {
         * has been cowed
         * [jbd_lock_bh_state()]
         */
-       unsigned b_cow_tid;
+       tid_t b_cow_tid;
 
        /*
         * Copy of the buffer data frozen for writing to the log.