Date: Sun, 04 Jan 2009 22:11:23 +0000 From: Kris Kennaway <kris@FreeBSD.org> To: Konstantin Belousov <kib@FreeBSD.org> Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org Subject: Re: svn commit: r186740 - head/sys/gnu/fs/ext2fs Message-ID: <4961340B.5010306@FreeBSD.org> In-Reply-To: <200901041556.n04Funod061146@svn.freebsd.org> References: <200901041556.n04Funod061146@svn.freebsd.org>
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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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