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-rw-r--r--include/linux/jbd2.h41
1 files changed, 40 insertions, 1 deletions
diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h
index eb1cebed3..df07e7848 100644
--- a/include/linux/jbd2.h
+++ b/include/linux/jbd2.h
@@ -29,6 +29,7 @@
#include <linux/mutex.h>
#include <linux/timer.h>
#include <linux/slab.h>
+#include <linux/bit_spinlock.h>
#include <crypto/hash.h>
#endif
@@ -336,7 +337,45 @@ BUFFER_FNS(Freed, freed)
BUFFER_FNS(Shadow, shadow)
BUFFER_FNS(Verified, verified)
-#include <linux/jbd_common.h>
+static inline struct buffer_head *jh2bh(struct journal_head *jh)
+{
+ return jh->b_bh;
+}
+
+static inline struct journal_head *bh2jh(struct buffer_head *bh)
+{
+ return bh->b_private;
+}
+
+static inline void jbd_lock_bh_state(struct buffer_head *bh)
+{
+ bit_spin_lock(BH_State, &bh->b_state);
+}
+
+static inline int jbd_trylock_bh_state(struct buffer_head *bh)
+{
+ return bit_spin_trylock(BH_State, &bh->b_state);
+}
+
+static inline int jbd_is_locked_bh_state(struct buffer_head *bh)
+{
+ return bit_spin_is_locked(BH_State, &bh->b_state);
+}
+
+static inline void jbd_unlock_bh_state(struct buffer_head *bh)
+{
+ bit_spin_unlock(BH_State, &bh->b_state);
+}
+
+static inline void jbd_lock_bh_journal_head(struct buffer_head *bh)
+{
+ bit_spin_lock(BH_JournalHead, &bh->b_state);
+}
+
+static inline void jbd_unlock_bh_journal_head(struct buffer_head *bh)
+{
+ bit_spin_unlock(BH_JournalHead, &bh->b_state);
+}
#define J_ASSERT(assert) BUG_ON(!(assert))