diff options
Diffstat (limited to 'include/linux/backing-dev.h')
| -rw-r--r-- | include/linux/backing-dev.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/linux/backing-dev.h b/include/linux/backing-dev.h index 94c93c9c5f66..55218964e7ef 100644 --- a/include/linux/backing-dev.h +++ b/include/linux/backing-dev.h @@ -17,6 +17,8 @@ enum bdi_state { BDI_pdflush, /* A pdflush thread is working this device */ BDI_write_congested, /* The write queue is getting full */ BDI_read_congested, /* The read queue is getting full */ + BDI_write_active, /* There are one or more queued writes */ + BDI_read_active, /* There are one or more queued reads */ BDI_unused, /* Available bits start here */ }; @@ -42,4 +44,14 @@ static inline int bdi_write_congested(struct backing_dev_info *bdi) return test_bit(BDI_write_congested, &bdi->state); } +static inline int bdi_read_active(struct backing_dev_info *bdi) +{ + return test_bit(BDI_read_active, &bdi->state); +} + +static inline int bdi_write_active(struct backing_dev_info *bdi) +{ + return test_bit(BDI_write_active, &bdi->state); +} + #endif /* _LINUX_BACKING_DEV_H */ |