diff options
| author | David Woodhouse <dwmw2@infradead.org> | 2007-10-13 14:43:54 +0100 |
|---|---|---|
| committer | David Woodhouse <dwmw2@infradead.org> | 2007-10-13 14:43:54 +0100 |
| commit | b160292cc216a50fd0cd386b0bda2cd48352c73b (patch) | |
| tree | ef07cf98f91353ee4c9ec1e1ca7a2a5d9d4b538a /arch/i386/xen | |
| parent | b37bde147890c8fea8369a5a4e230dabdea4ebfb (diff) | |
| parent | bbf25010f1a6b761914430f5fca081ec8c7accd1 (diff) | |
Merge Linux 2.6.23
Diffstat (limited to 'arch/i386/xen')
| -rw-r--r-- | arch/i386/xen/enlighten.c | 4 | ||||
| -rw-r--r-- | arch/i386/xen/mmu.c | 5 |
2 files changed, 6 insertions, 3 deletions
diff --git a/arch/i386/xen/enlighten.c b/arch/i386/xen/enlighten.c index f0c37511d8d..f01bfcd4bde 100644 --- a/arch/i386/xen/enlighten.c +++ b/arch/i386/xen/enlighten.c @@ -623,8 +623,8 @@ static unsigned long xen_read_cr2_direct(void) static void xen_write_cr4(unsigned long cr4) { - /* never allow TSC to be disabled */ - native_write_cr4(cr4 & ~X86_CR4_TSD); + /* Just ignore cr4 changes; Xen doesn't allow us to do + anything anyway. */ } static unsigned long xen_read_cr3(void) diff --git a/arch/i386/xen/mmu.c b/arch/i386/xen/mmu.c index 4ae038aa6c2..874db0cd1d2 100644 --- a/arch/i386/xen/mmu.c +++ b/arch/i386/xen/mmu.c @@ -559,6 +559,9 @@ void xen_exit_mmap(struct mm_struct *mm) put_cpu(); spin_lock(&mm->page_table_lock); - xen_pgd_unpin(mm->pgd); + + /* pgd may not be pinned in the error exit path of execve */ + if (PagePinned(virt_to_page(mm->pgd))) + xen_pgd_unpin(mm->pgd); spin_unlock(&mm->page_table_lock); } |