[PATCH] ncpfs and CONFIG_DEBUG_SLAB

Petr Vandrovec (vandrove@vc.cvut.cz)
Wed, 7 Mar 2001 22:54:35 +0100


Hi Alan,
if you are going to apply patch I saw today morning on linux-kernel
to disable redzoning on SLAB_HWCACHE aligned areas, drop this one into
wastebasket.
If not, please apply this. When CONFIG_DEBUG_SLAB is enbled,
dentries do not live on 16bytes boundary, but on x*8 + 4 :-( So I
can validate only two low bits.
This patch is for 2.4.2-ac13 with applied patch I sent just few
minutes ago.
Urban's smbfs has same problem, as it uses almost same validate
code...
Thanks,
Petr Vandrovec
vandrove@vc.cvut.cz

--- linux/fs/ncpfs/dir.c Wed Mar 7 22:40:12 2001
+++ linux/fs/ncpfs/dir.c Wed Mar 7 21:09:36 2001
@@ -332,7 +332,11 @@
{
unsigned long dent_addr = (unsigned long) dentry;
const unsigned long min_addr = PAGE_OFFSET;
+#ifdef CONFIG_DEBUG_SLAB
+ const unsigned long align_mask = 0x03;
+#else
const unsigned long align_mask = 0x0F;
+#endif
unsigned int len;

if (dent_addr < min_addr)
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/