Use Linux standard pattern for walking through the page table hierarchy.
As we know that the warning I once saw with this applied was related to
another, already fixed bug, my feeling is far better about this variant
now. :)
Jan
--
Siemens AG, Corporate Technology, CT SE 2
Corporate Competence Center Embedded Linux
---
mm/memory.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
Index: linux-2.6.24-rc8-xeno_64/mm/memory.c
===================================================================
--- linux-2.6.24-rc8-xeno_64.orig/mm/memory.c
+++ linux-2.6.24-rc8-xeno_64/mm/memory.c
@@ -2827,7 +2827,7 @@ static inline int ipipe_pin_pmd_range(st
pmd = pmd_offset(pud, addr);
do {
next = pmd_addr_end(addr, end);
- if (pmd_none(*pmd) || unlikely(pmd_bad(*pmd)))
+ if (pmd_none_or_clear_bad(pmd))
continue;
if (ipipe_pin_pte_range(mm, pmd, vma, addr, next))
return -ENOMEM;
@@ -2845,7 +2845,7 @@ static inline int ipipe_pin_pud_range(st
pud = pud_offset(pgd, addr);
do {
next = pud_addr_end(addr, end);
- if (pud_none(*pud) || unlikely(pud_bad(*pud)))
+ if (pud_none_or_clear_bad(pud))
continue;
if (ipipe_pin_pmd_range(mm, pud, vma, addr, next))
return -ENOMEM;
@@ -2879,7 +2879,7 @@ int ipipe_disable_ondemand_mappings(stru
pgd = pgd_offset(mm, addr);
do {
next = pgd_addr_end(addr, end);
- if (pgd_none(*pgd) || unlikely(pgd_bad(*pgd)))
+ if (pgd_none_or_clear_bad(pgd))
continue;
if (ipipe_pin_pud_range(mm, pgd, vma, addr, next)) {
result = -ENOMEM;
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