From b9b9144a5336f0d85428e2870e1010641f27b3f4 Mon Sep 17 00:00:00 2001 From: Akinobu Mita Date: Wed, 23 Mar 2011 16:42:10 -0700 Subject: [PATCH] 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 Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/reiserfs_fs.h | 27 +++++++++++++-------------- 1 file changed, 13 insertions(+), 14 deletions(-) diff --git a/include/linux/reiserfs_fs.h b/include/linux/reiserfs_fs.h index c21072adbfad..0a3842aacba9 100644 --- a/include/linux/reiserfs_fs.h +++ b/include/linux/reiserfs_fs.h @@ -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