diff options
Diffstat (limited to 'include/linux/srcutiny.h')
| -rw-r--r-- | include/linux/srcutiny.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/srcutiny.h b/include/linux/srcutiny.h index 5a5a1941ca15..fed4a2d9d0b6 100644 --- a/include/linux/srcutiny.h +++ b/include/linux/srcutiny.h @@ -15,7 +15,7 @@ struct srcu_struct { short srcu_lock_nesting[2]; /* srcu_read_lock() nesting depth. */ - short srcu_idx; /* Current reader array element. */ + unsigned short srcu_idx; /* Current reader array element in bit 0x2. */ u8 srcu_gp_running; /* GP workqueue running? */ u8 srcu_gp_waiting; /* GP waiting for readers? */ struct swait_queue_head srcu_wq; @@ -59,7 +59,7 @@ static inline int __srcu_read_lock(struct srcu_struct *ssp) { int idx; - idx = READ_ONCE(ssp->srcu_idx); + idx = (READ_ONCE(ssp->srcu_idx) & 0x2) / 2; WRITE_ONCE(ssp->srcu_lock_nesting[idx], ssp->srcu_lock_nesting[idx] + 1); return idx; } |