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authorAkinobu Mita <akinobu.mita@gmail.com>2009-12-15 16:48:24 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2009-12-16 07:20:18 -0800
commit868d64812ae84e8f094e0bcf95157c7d79d625ec (patch)
treed4788544d0ea0143022150eb765f52cb2801073d /fs
parentca120b20c32ffabf0e1d4319f65360e920fb4fe2 (diff)
downloadlinux-linaro-868d64812ae84e8f094e0bcf95157c7d79d625ec.tar.gz
qnx4: use hweight8
Use hweight8 instead of counting for each bit Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Acked-by: Anders Larsen <al@alarsen.net> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs')
-rw-r--r--fs/qnx4/bitmap.c17
1 files changed, 1 insertions, 16 deletions
diff --git a/fs/qnx4/bitmap.c b/fs/qnx4/bitmap.c
index a17440bce01..22e0d60e53e 100644
--- a/fs/qnx4/bitmap.c
+++ b/fs/qnx4/bitmap.c
@@ -28,22 +28,7 @@ static void count_bits(register const char *bmPart, register int size,
}
do {
b = *bmPart++;
- if ((b & 1) == 0)
- tot++;
- if ((b & 2) == 0)
- tot++;
- if ((b & 4) == 0)
- tot++;
- if ((b & 8) == 0)
- tot++;
- if ((b & 16) == 0)
- tot++;
- if ((b & 32) == 0)
- tot++;
- if ((b & 64) == 0)
- tot++;
- if ((b & 128) == 0)
- tot++;
+ tot += 8 - hweight8(b);
size--;
} while (size != 0);
*tf = tot;