diff options
| author | Oleg Nesterov <oleg@tv-sign.ru> | 2004-06-29 05:26:38 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2004-06-29 05:26:38 -0700 |
| commit | 425675c4610e62cd63deed66e87198e39e9d79e3 (patch) | |
| tree | 09bce10443cb7c9ccec609c61f6a6308ecb36b3e /include/linux | |
| parent | 10151fb771208dd70c2dad4be4686cc02dbce49a (diff) | |
[PATCH] kill mm_struct.used_hugetlb
mm_struct.used_hugetlb used to eliminate costly find_vma() from
follow_page(). Now it is used only in ia64 version of follow_huge_addr().
I know nothing about ia64, but this REGION_NUMBER() looks simple enough to
kill used_hugetlb.
There is debug version (commented out) of follow_huge_addr() in i386 which
looks at used_hugetlb, but it can work without this check.
Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/hugetlb.h | 8 | ||||
| -rw-r--r-- | include/linux/sched.h | 3 |
2 files changed, 0 insertions, 11 deletions
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h index 7bf578e512b7..5e578c036157 100644 --- a/include/linux/hugetlb.h +++ b/include/linux/hugetlb.h @@ -35,13 +35,6 @@ extern unsigned long max_huge_pages; extern const unsigned long hugetlb_zero, hugetlb_infinity; extern int sysctl_hugetlb_shm_group; -static inline void -mark_mm_hugetlb(struct mm_struct *mm, struct vm_area_struct *vma) -{ - if (is_vm_hugetlb_page(vma)) - mm->used_hugetlb = 1; -} - #ifndef ARCH_HAS_HUGEPAGE_ONLY_RANGE #define is_hugepage_only_range(addr, len) 0 #define hugetlb_free_pgtables(tlb, prev, start, end) do { } while (0) @@ -74,7 +67,6 @@ static inline unsigned long hugetlb_total_pages(void) #define is_hugepage_mem_enough(size) 0 #define hugetlb_report_meminfo(buf) 0 #define hugetlb_report_node_meminfo(n, buf) 0 -#define mark_mm_hugetlb(mm, vma) do { } while (0) #define follow_huge_pmd(mm, addr, pmd, write) NULL #define is_aligned_hugepage_range(addr, len) 0 #define prepare_hugepage_range(addr, len) (-EINVAL) diff --git a/include/linux/sched.h b/include/linux/sched.h index 630cc8f5dc6c..6eb3b3afa1a6 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -215,9 +215,6 @@ struct mm_struct { unsigned long saved_auxv[40]; /* for /proc/PID/auxv */ unsigned dumpable:1; -#ifdef CONFIG_HUGETLB_PAGE - int used_hugetlb; -#endif cpumask_t cpu_vm_mask; /* Architecture-specific MM context */ |