71 lines
1.4 KiB
C
71 lines
1.4 KiB
C
#ifndef _LINUX_JBD_STATE_H
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#define _LINUX_JBD_STATE_H
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#include <linux/bit_spinlock.h>
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static inline struct buffer_head *jh2bh(struct journal_head *jh)
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{
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return jh->b_bh;
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}
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static inline struct journal_head *bh2jh(struct buffer_head *bh)
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{
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return bh->b_private;
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}
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static inline void jbd_lock_bh_state(struct buffer_head *bh)
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{
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#ifndef CONFIG_PREEMPT_RT_BASE
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bit_spin_lock(BH_State, &bh->b_state);
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#else
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spin_lock(&bh->b_state_lock);
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#endif
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}
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static inline int jbd_trylock_bh_state(struct buffer_head *bh)
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{
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#ifndef CONFIG_PREEMPT_RT_BASE
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return bit_spin_trylock(BH_State, &bh->b_state);
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#else
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return spin_trylock(&bh->b_state_lock);
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#endif
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}
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static inline int jbd_is_locked_bh_state(struct buffer_head *bh)
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{
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#ifndef CONFIG_PREEMPT_RT_BASE
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return bit_spin_is_locked(BH_State, &bh->b_state);
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#else
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return spin_is_locked(&bh->b_state_lock);
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#endif
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}
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static inline void jbd_unlock_bh_state(struct buffer_head *bh)
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{
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#ifndef CONFIG_PREEMPT_RT_BASE
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bit_spin_unlock(BH_State, &bh->b_state);
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#else
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spin_unlock(&bh->b_state_lock);
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#endif
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}
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static inline void jbd_lock_bh_journal_head(struct buffer_head *bh)
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{
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#ifndef CONFIG_PREEMPT_RT_BASE
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bit_spin_lock(BH_JournalHead, &bh->b_state);
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#else
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spin_lock(&bh->b_journal_head_lock);
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#endif
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}
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static inline void jbd_unlock_bh_journal_head(struct buffer_head *bh)
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{
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#ifndef CONFIG_PREEMPT_RT_BASE
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bit_spin_unlock(BH_JournalHead, &bh->b_state);
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#else
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spin_unlock(&bh->b_journal_head_lock);
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#endif
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}
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#endif
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