Hi,
FYI, I think you may be interested in one of our (FreeBSD) recent change
to lzjb decompression.
FreeBSD r256132:
Improve lzjb decompress performance by reorganizing the code
to tighten the copy loop.
Received: from [64.62.153.212] (helo=anubis.delphij.net)
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(envelope-from <[email protected]>); Fri, 11 Oct 2013 02:39:10 -0000
Submitted by: Denis Ahrens <denis h3q com>
Should I file a ticket for this for tracking?
Cheers,
--
Xin LI <[email protected]> https://www.delphij.net/
FreeBSD - The Power to Serve! Live free or die
Index: sys/cddl/contrib/opensolaris/uts/common/fs/zfs/lzjb.c
===================================================================
--- sys/cddl/contrib/opensolaris/uts/common/fs/zfs/lzjb.c (revision
256131)
+++ sys/cddl/contrib/opensolaris/uts/common/fs/zfs/lzjb.c (revision
256132)
@@ -117,7 +117,9 @@
src += 2;
if ((cpy = dst - offset) < (uchar_t *)d_start)
return (-1);
- while (--mlen >= 0 && dst < d_end)
+ if (mlen > (d_end - dst))
+ mlen = d_end - dst;
+ while (--mlen >= 0)
*dst++ = *cpy++;
} else {
*dst++ = *src++;
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