From: "Matthew Wilcox (Oracle)" <willy@xxxxxxxxxxxxx>
This is the generic implementation. I can't figure out an optimised
implementation for mips.
Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Cc: Thomas Bogendoerfer <tsbogend@xxxxxxxxxxxxxxxx>
Cc: linux-mips@xxxxxxxxxxxxxxx
---
arch/mips/include/asm/bitops.h | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/arch/mips/include/asm/bitops.h b/arch/mips/include/asm/bitops.h
index a74769940fbd..23e9d36c2ffc 100644
--- a/arch/mips/include/asm/bitops.h
+++ b/arch/mips/include/asm/bitops.h
@@ -147,6 +147,13 @@ static inline void clear_bit_unlock(unsigned long nr, volatile unsigned long *ad
clear_bit(nr, addr);
}
+static inline bool clear_bit_unlock_is_negative_byte(unsigned int nr,
+ volatile unsigned long *p)
+{
+ clear_bit_unlock(nr, p);
+ return test_bit(7, p);
+}
+
/*
* change_bit - Toggle a bit in memory
* @nr: Bit to change
--
2.25.1
