Commit | Line | Data |
---|---|---|
44606672 TG |
1 | #ifndef _LINUX_JBD_STATE_H |
2 | #define _LINUX_JBD_STATE_H | |
3 | ||
c9b3a8cc PG |
4 | #include <linux/bit_spinlock.h> |
5 | ||
44606672 TG |
6 | static inline struct buffer_head *jh2bh(struct journal_head *jh) |
7 | { | |
8 | return jh->b_bh; | |
9 | } | |
10 | ||
11 | static inline struct journal_head *bh2jh(struct buffer_head *bh) | |
12 | { | |
13 | return bh->b_private; | |
14 | } | |
15 | ||
16 | static inline void jbd_lock_bh_state(struct buffer_head *bh) | |
17 | { | |
18 | bit_spin_lock(BH_State, &bh->b_state); | |
19 | } | |
20 | ||
21 | static inline int jbd_trylock_bh_state(struct buffer_head *bh) | |
22 | { | |
23 | return bit_spin_trylock(BH_State, &bh->b_state); | |
24 | } | |
25 | ||
26 | static inline int jbd_is_locked_bh_state(struct buffer_head *bh) | |
27 | { | |
28 | return bit_spin_is_locked(BH_State, &bh->b_state); | |
29 | } | |
30 | ||
31 | static inline void jbd_unlock_bh_state(struct buffer_head *bh) | |
32 | { | |
33 | bit_spin_unlock(BH_State, &bh->b_state); | |
34 | } | |
35 | ||
36 | static inline void jbd_lock_bh_journal_head(struct buffer_head *bh) | |
37 | { | |
38 | bit_spin_lock(BH_JournalHead, &bh->b_state); | |
39 | } | |
40 | ||
41 | static inline void jbd_unlock_bh_journal_head(struct buffer_head *bh) | |
42 | { | |
43 | bit_spin_unlock(BH_JournalHead, &bh->b_state); | |
44 | } | |
45 | ||
46 | #endif |