[PATCH] ncpfs and CONFIG_DEBUG_SLAB

From: Petr Vandrovec (vandrove@vc.cvut.cz)
Date: Wed Mar 07 2001 - 16:54:35 EST


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)
-
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