blob: 6133679bc4c01ace20a0114fd50ff7c3481c7eb9 [file] [log] [blame]
enum jbd_state_bits {
BH_JBD /* Has an attached ext3 journal_head */
= BH_PrivateStart,
BH_JWrite, /* Being written to log (@@@ DEBUGGING) */
BH_Freed, /* Has been freed (truncated) */
BH_Revoked, /* Has been revoked from the log */
BH_RevokeValid, /* Revoked flag is valid */
BH_JBDDirty, /* Is dirty but journaled */
BH_State, /* Pins most journal_head state */
BH_JournalHead, /* Pins bh->b_private and jh->b_bh */
BH_Unshadow, /* Dummy bit, for BJ_Shadow wakeup filtering */
BH_Verified, /* Metadata block has been verified ok */
BH_JBDPrivateStart, /* First bit available for private use by FS */
BUFFER_FNS(JWrite, jwrite)
BUFFER_FNS(JBDDirty, jbddirty)
TAS_BUFFER_FNS(JBDDirty, jbddirty)
BUFFER_FNS(Revoked, revoked)
TAS_BUFFER_FNS(Revoked, revoked)
BUFFER_FNS(RevokeValid, revokevalid)
TAS_BUFFER_FNS(RevokeValid, revokevalid)
BUFFER_FNS(Freed, freed)
BUFFER_FNS(Verified, verified)
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);