TononixOS/ubports_kernel_google_msm
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arch: add #define for each of optimized find bitops

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The style that we normally use in asm-generic is to test the macro itself
for existence, so in asm-generic, do:

	#ifndef find_next_zero_bit_le
	extern unsigned long find_next_zero_bit_le(const void *addr,
		unsigned long size, unsigned long offset);
	#endif

and in the architectures, write

	static inline unsigned long find_next_zero_bit_le(const void *addr,
		unsigned long size, unsigned long offset)
	#define find_next_zero_bit_le find_next_zero_bit_le

This adds the #define for each of the optimized find bitops in the
architectures.

Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Acked-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Greg Ungerer <gerg@uclinux.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Akinobu Mita
2011-05-26 16:26:06 -07:00
committed by Linus Torvalds
parent e0819410db
commit a2812e1783
5 changed files with 36 additions and 0 deletions
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8
arch/m68k/include/asm/bitops_mm.h
View File

@@ -200,6 +200,7 @@ out:
res += ((long)p - (long)vaddr - 4) * 8;
return res < size ? res : size;
}
#define find_first_zero_bit find_first_zero_bit
static inline int find_next_zero_bit(const unsigned long *vaddr, int size,
int offset)
@@ -229,6 +230,7 @@ static inline int find_next_zero_bit(const unsigned long *vaddr, int size,
/* No zero yet, search remaining full bytes for a zero */
return offset + find_first_zero_bit(p, size - offset);
}
#define find_next_zero_bit find_next_zero_bit
static inline int find_first_bit(const unsigned long *vaddr, unsigned size)
{
@@ -253,6 +255,7 @@ out:
res += ((long)p - (long)vaddr - 4) * 8;
return res < size ? res : size;
}
#define find_first_bit find_first_bit
static inline int find_next_bit(const unsigned long *vaddr, int size,
int offset)
@@ -282,6 +285,7 @@ static inline int find_next_bit(const unsigned long *vaddr, int size,
/* No one yet, search remaining full bytes for a one */
return offset + find_first_bit(p, size - offset);
}
#define find_next_bit find_next_bit
/*
* ffz = Find First Zero in word. Undefined if no zero exists,
@@ -398,6 +402,7 @@ out:
res += (p - addr) * 32;
return res < size ? res : size;
}
#define find_first_zero_bit_le find_first_zero_bit_le
static inline unsigned long find_next_zero_bit_le(const void *addr,
unsigned long size, unsigned long offset)
@@ -427,6 +432,7 @@ static inline unsigned long find_next_zero_bit_le(const void *addr,
/* No zero yet, search remaining full bytes for a zero */
return offset + find_first_zero_bit_le(p, size - offset);
}
#define find_next_zero_bit_le find_next_zero_bit_le
static inline int find_first_bit_le(const void *vaddr, unsigned size)
{
@@ -451,6 +457,7 @@ out:
res += (p - addr) * 32;
return res < size ? res : size;
}
#define find_first_bit_le find_first_bit_le
static inline unsigned long find_next_bit_le(const void *addr,
unsigned long size, unsigned long offset)
@@ -480,6 +487,7 @@ static inline unsigned long find_next_bit_le(const void *addr,
/* No set bit yet, search remaining full bytes for a set bit */
return offset + find_first_bit_le(p, size - offset);
}
#define find_next_bit_le find_next_bit_le
/* Bitmap functions for the ext2 filesystem. */

2
arch/m68k/include/asm/bitops_no.h
View File

@@ -319,6 +319,7 @@ found_first:
found_middle:
return result + ffz(__swab32(tmp));
}
#define find_next_zero_bit_le find_next_zero_bit_le
static inline unsigned long find_next_bit_le(const void *addr, unsigned
long size, unsigned long offset)
@@ -363,6 +364,7 @@ found_middle:
found_middle_swap:
return result + __ffs(__swab32(tmp));
}
#define find_next_bit_le find_next_bit_le
#endif /* __KERNEL__ */