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| author | Joel Becker <joel.becker@oracle.com> | 2010-04-30 22:37:29 +0200 |
|---|---|---|
| committer | Joel Becker <joel.becker@oracle.com> | 2010-04-30 22:37:29 +0200 |
| commit | f9221fd80343285514568da6c5dbda0f87109de8 (patch) | |
| tree | 3a2f0077ebea9d094bdeedb319c97cb591d51c51 /arch/arm/mm/mmu.c | |
| parent | ocfs2_dlmfs: Fix math error when reading LVB. (diff) | |
| parent | ocfs2: Add directory entry later in ocfs2_symlink() and ocfs2_mknod() (diff) | |
| download | linux-f9221fd80343285514568da6c5dbda0f87109de8.tar.xz linux-f9221fd80343285514568da6c5dbda0f87109de8.zip | |
Merge branch 'skip_delete_inode' of git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2-mark into ocfs2-fixes
Diffstat (limited to 'arch/arm/mm/mmu.c')
| -rw-r--r-- | arch/arm/mm/mmu.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c index 9d4da6ac28eb..241c24a1c18f 100644 --- a/arch/arm/mm/mmu.c +++ b/arch/arm/mm/mmu.c @@ -420,6 +420,10 @@ static void __init build_mem_type_table(void) user_pgprot |= L_PTE_SHARED; kern_pgprot |= L_PTE_SHARED; vecs_pgprot |= L_PTE_SHARED; + mem_types[MT_DEVICE_WC].prot_sect |= PMD_SECT_S; + mem_types[MT_DEVICE_WC].prot_pte |= L_PTE_SHARED; + mem_types[MT_DEVICE_CACHED].prot_sect |= PMD_SECT_S; + mem_types[MT_DEVICE_CACHED].prot_pte |= L_PTE_SHARED; mem_types[MT_MEMORY].prot_sect |= PMD_SECT_S; mem_types[MT_MEMORY_NONCACHED].prot_sect |= PMD_SECT_S; #endif @@ -1050,10 +1054,12 @@ void setup_mm_for_reboot(char mode) pgd_t *pgd; int i; - if (current->mm && current->mm->pgd) - pgd = current->mm->pgd; - else - pgd = init_mm.pgd; + /* + * We need to access to user-mode page tables here. For kernel threads + * we don't have any user-mode mappings so we use the context that we + * "borrowed". + */ + pgd = current->active_mm->pgd; base_pmdval = PMD_SECT_AP_WRITE | PMD_SECT_AP_READ | PMD_TYPE_SECT; if (cpu_architecture() <= CPU_ARCH_ARMv5TEJ && !cpu_is_xscale()) |