lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

x86: update populate_extra_pte() and add populate_extra_pmd()

Browse Source 
Impact: minor change to populate_extra_pte() and addition of pmd flavor

Update populate_extra_pte() to return pointer to the pte_t for the
specified address and add populate_extra_pmd() which only populates
till the pmd and returns pointer to the pmd entry for the address.

For 64bit, pud/pmd/pte fill functions are separated out from
set_pte_vaddr[_pud]() and used for set_pte_vaddr[_pud]() and
populate_extra_{pte|pmd}().

Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Tejun Heo
2009-02-24 11:57:21 +09:00
parent c0c0a29379
commit 458a3e644c
4 changed files with 67 additions and 39 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
arch/x86/include/asm/pgtable.h
View File

@@ -402,7 +402,8 @@ int phys_mem_access_prot_allowed(struct file *file, unsigned long pfn,
/* Install a pte for a particular vaddr in kernel space. */
void set_pte_vaddr(unsigned long vaddr, pte_t pte);
void populate_extra_pte(unsigned long vaddr);
pmd_t *populate_extra_pmd(unsigned long vaddr);
pte_t *populate_extra_pte(unsigned long vaddr);
#ifdef CONFIG_X86_32
extern void native_pagetable_setup_start(pgd_t *base);