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authorLinus Torvalds <torvalds@linux-foundation.org>2008-10-16 15:08:45 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-10-16 15:08:45 -0700
commit0999d978dcdcf59350dafa25afd70def9f924eee (patch)
treee04a30f51fec1b74d3d21b59a403390e4980ad33 /include/asm-x86
parent70a3075d40154053ad90d342b3dcb1b795c73dbb (diff)
parentf61f1b5717dec9968efd6c8d61bd73b7a61b72a0 (diff)
Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: fix compat-vdso x86/mm: unify init task OOM handling x86/mm: do not trigger a kernel warning if user-space disables interrupts and generates a page fault
Diffstat (limited to 'include/asm-x86')
-rw-r--r--include/asm-x86/pgtable.h7
1 files changed, 6 insertions, 1 deletions
diff --git a/include/asm-x86/pgtable.h b/include/asm-x86/pgtable.h
index 182f9d4c570..88a53b1a17f 100644
--- a/include/asm-x86/pgtable.h
+++ b/include/asm-x86/pgtable.h
@@ -148,8 +148,13 @@
#ifdef CONFIG_X86_64
#define __PAGE_KERNEL_IDENT_LARGE_EXEC __PAGE_KERNEL_LARGE_EXEC
#else
+/*
+ * For PDE_IDENT_ATTR include USER bit. As the PDE and PTE protection
+ * bits are combined, this will alow user to access the high address mapped
+ * VDSO in the presence of CONFIG_COMPAT_VDSO
+ */
#define PTE_IDENT_ATTR 0x003 /* PRESENT+RW */
-#define PDE_IDENT_ATTR 0x063 /* PRESENT+RW+DIRTY+ACCESSED */
+#define PDE_IDENT_ATTR 0x067 /* PRESENT+RW+USER+DIRTY+ACCESSED */
#define PGD_IDENT_ATTR 0x001 /* PRESENT (no other attributes) */
#endif