svn commit: r186740 - head/sys/gnu/fs/ext2fs
Kris Kennaway
kris at FreeBSD.org
Sun Jan 4 14:11:25 PST 2009
Konstantin Belousov wrote:
> Author: kib
> Date: Sun Jan 4 15:56:49 2009
> New Revision: 186740
> URL: http://svn.freebsd.org/changeset/base/186740
>
> Log:
> Do not incorrectly add the low 5 bits of the offset to the resulting
> position of the found zero bit.
>
> Submitted by: Jaakko Heinonen <jh saunalahti fi>
> MFC after: 2 weeks
>
> Modified:
> head/sys/gnu/fs/ext2fs/ext2_bitops.h
Does this fix ext2fs on amd64?
Kris
> Modified: head/sys/gnu/fs/ext2fs/ext2_bitops.h
> ==============================================================================
> --- head/sys/gnu/fs/ext2fs/ext2_bitops.h Sun Jan 4 15:49:30 2009 (r186739)
> +++ head/sys/gnu/fs/ext2fs/ext2_bitops.h Sun Jan 4 15:56:49 2009 (r186740)
> @@ -84,7 +84,7 @@ find_next_zero_bit(void *data, size_t sz
> mask = ~0U << (ofs & 31);
> bit = *p | ~mask;
> if (bit != ~0U)
> - return (ffs(~bit) + ofs - 1);
> + return (ffs(~bit) + (ofs & ~31U) - 1);
> p++;
> ofs = (ofs + 31U) & ~31U;
> }
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