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reiserfs: use little-endian bitops 

As a preparation for removing ext2 non-atomic bit operations from
asm/bitops.h.  This converts ext2 non-atomic bit operations to
little-endian bit operations.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
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 2011-03-23 16:42:10 -07:00 committed by Linus Torvalds
parent a49ebbabb0
commit b9b9144a53
1 changed files with 13 additions and 14 deletions
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27
include/linux/reiserfs_fs.h
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@ -1124,15 +1124,18 @@ struct reiserfs_de_head {
# define aligned_address(addr) ((void *)((long)(addr) & ~((1UL << ADDR_UNALIGNED_BITS) - 1)))
# define unaligned_offset(addr) (((int)((long)(addr) & ((1 << ADDR_UNALIGNED_BITS) - 1))) << 3)
# define set_bit_unaligned(nr, addr) ext2_set_bit((nr) + unaligned_offset(addr), aligned_address(addr))
# define clear_bit_unaligned(nr, addr) ext2_clear_bit((nr) + unaligned_offset(addr), aligned_address(addr))
# define test_bit_unaligned(nr, addr) ext2_test_bit((nr) + unaligned_offset(addr), aligned_address(addr))
# define set_bit_unaligned(nr, addr) \
__test_and_set_bit_le((nr) + unaligned_offset(addr), aligned_address(addr))
# define clear_bit_unaligned(nr, addr) \
__test_and_clear_bit_le((nr) + unaligned_offset(addr), aligned_address(addr))
# define test_bit_unaligned(nr, addr) \
test_bit_le((nr) + unaligned_offset(addr), aligned_address(addr))
#else
# define set_bit_unaligned(nr, addr) ext2_set_bit(nr, addr)
# define clear_bit_unaligned(nr, addr) ext2_clear_bit(nr, addr)
# define test_bit_unaligned(nr, addr) ext2_test_bit(nr, addr)
# define set_bit_unaligned(nr, addr) __test_and_set_bit_le(nr, addr)
# define clear_bit_unaligned(nr, addr) __test_and_clear_bit_le(nr, addr)
# define test_bit_unaligned(nr, addr) test_bit_le(nr, addr)
#endif
@ -2329,14 +2332,10 @@ __u32 keyed_hash(const signed char *msg, int len);
__u32 yura_hash(const signed char *msg, int len);
__u32 r5_hash(const signed char *msg, int len);
/* the ext2 bit routines adjust for big or little endian as
** appropriate for the arch, so in our laziness we use them rather
** than using the bit routines they call more directly. These
** routines must be used when changing on disk bitmaps. */
#define reiserfs_test_and_set_le_bit ext2_set_bit
#define reiserfs_test_and_clear_le_bit ext2_clear_bit
#define reiserfs_test_le_bit ext2_test_bit
#define reiserfs_find_next_zero_le_bit ext2_find_next_zero_bit
#define reiserfs_test_and_set_le_bit __test_and_set_bit_le
#define reiserfs_test_and_clear_le_bit __test_and_clear_bit_le
#define reiserfs_test_le_bit test_bit_le
#define reiserfs_find_next_zero_le_bit find_next_zero_bit_le
/* sometimes reiserfs_truncate may require to allocate few new blocks
to perform indirect2direct conversion. People probably used to