xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Revert "powerpc/mm: Fix bug in pagetable cache cleanup with CONFIG_PPC_SUBPAGE_PROT"

Browse Source 
This reverts commit c045256d14.

It breaks build when CONFIG_PPC_SUBPAGE_PROT is not set. I will
commit a fixed version separately

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Benjamin Herrenschmidt
2009-12-02 09:28:35 +11:00
parent 86f9e097f3
commit 5a7b4193e5
6 changed files with 49 additions and 51 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
arch/powerpc/mm/subpage-prot.c
View File

@@ -24,9 +24,9 @@
* Also makes sure that the subpage_prot_table structure is
* reinitialized for the next user.
*/
void subpage_prot_free(struct mm_struct *mm)
void subpage_prot_free(pgd_t *pgd)
{
struct subpage_prot_table *spt = &mm->context.spt;
struct subpage_prot_table *spt = pgd_subpage_prot(pgd);
unsigned long i, j, addr;
u32 **p;
@@ -51,13 +51,6 @@ void subpage_prot_free(struct mm_struct *mm)
spt->maxaddr = 0;
}
void subpage_prot_init_new_context(struct mm_struct *mm)
{
struct subpage_prot_table *spt = &mm->context.spt;
memset(spt, 0, sizeof(*spt));
}
static void hpte_flush_range(struct mm_struct *mm, unsigned long addr,
int npages)
{
@@ -94,7 +87,7 @@ static void hpte_flush_range(struct mm_struct *mm, unsigned long addr,
static void subpage_prot_clear(unsigned long addr, unsigned long len)
{
struct mm_struct *mm = current->mm;
struct subpage_prot_table *spt = &mm->context.spt;
struct subpage_prot_table *spt = pgd_subpage_prot(mm->pgd);
u32 **spm, *spp;
int i, nw;
unsigned long next, limit;
@@ -143,7 +136,7 @@ static void subpage_prot_clear(unsigned long addr, unsigned long len)
long sys_subpage_prot(unsigned long addr, unsigned long len, u32 __user *map)
{
struct mm_struct *mm = current->mm;
struct subpage_prot_table *spt = &mm->context.spt;
struct subpage_prot_table *spt = pgd_subpage_prot(mm->pgd);
u32 **spm, *spp;
int i, nw;
unsigned long next, limit;