Re: [microblaze-uclinux] kernel compilation error: 'vmlist_lock undeclared'

[John Williams <jwilliams@xxxxxxxxxxxxxx>]

Hi David,

David Banas wrote:
> Hi All,
> 
> Has anyone bumped into this error when compiling the kernel? It's occurring
> while make is operating in the './fs/proc' directory.
> 
> kcore.c: In function `read_kcore':
> kcore.c:362: `vmlist_lock' undeclared (first use in this function)

You need to freshen your copy of linux-2.4.x/include/linux/vmalloc.h 
from CVS, or apply the following trivial patch:

Regards,

John

Index: vmalloc.h
===================================================================
RCS file: /var/cvs/uClinux-2.4.x/include/linux/vmalloc.h,v
retrieving revision 1.4
retrieving revision 1.5
diff -u -b -B -w -p -r1.4 -r1.5
--- vmalloc.h   27 Aug 2003 03:13:47 -0000      1.4
+++ vmalloc.h   14 Feb 2005 06:32:51 -0000      1.5
@@ -69,6 +69,12 @@ extern struct vm_struct * vmlist;

  #else /* NO_MM */

+/*
+ * vmlist_lock is a read-write spinlock that protects vmlist
+ * Used in mm/vmalloc.c (get_vm_area() and vfree()) and fs/proc/kcore.c.
+ */
+extern rwlock_t vmlist_lock;
+
  extern void vfree(void * addr);
  extern void *__vmalloc(unsigned long size, int gfp_mask, pgprot_t prot);
  extern long vread(char *buf, char *addr, unsigned long count);


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