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| author | Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> | 2010-05-24 14:32:12 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-05-25 08:06:58 -0700 |
| commit | 1a5cb81465b66b74bf3d6ad36e5382238de6a132 (patch) | |
| tree | 28494edfea96752f57c88601d80819759085fade /fs/proc/task_mmu.c | |
| parent | e48293fd75b3aa67f43ad6e3d2ff397caa55d58b (diff) | |
| download | lwn-1a5cb81465b66b74bf3d6ad36e5382238de6a132.tar.gz lwn-1a5cb81465b66b74bf3d6ad36e5382238de6a132.zip | |
pagemap: add #ifdefs CONFIG_HUGETLB_PAGE on code walking hugetlb vma
If !CONFIG_HUGETLB_PAGE, pagemap_hugetlb_range() is never called. So put
it (and its calling function) into #ifdef block.
Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Acked-by: Matt Mackall <mpm@selenic.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/proc/task_mmu.c')
| -rw-r--r-- | fs/proc/task_mmu.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c index 47f5b145f56e..aea1d3f1ffb5 100644 --- a/fs/proc/task_mmu.c +++ b/fs/proc/task_mmu.c @@ -634,6 +634,7 @@ static int pagemap_pte_range(pmd_t *pmd, unsigned long addr, unsigned long end, return err; } +#ifdef CONFIG_HUGETLB_PAGE static u64 huge_pte_to_pagemap_entry(pte_t pte, int offset) { u64 pme = 0; @@ -664,6 +665,7 @@ static int pagemap_hugetlb_range(pte_t *pte, unsigned long hmask, return err; } +#endif /* HUGETLB_PAGE */ /* * /proc/pid/pagemap - an array mapping virtual pages to pfns @@ -733,7 +735,9 @@ static ssize_t pagemap_read(struct file *file, char __user *buf, pagemap_walk.pmd_entry = pagemap_pte_range; pagemap_walk.pte_hole = pagemap_pte_hole; +#ifdef CONFIG_HUGETLB_PAGE pagemap_walk.hugetlb_entry = pagemap_hugetlb_range; +#endif pagemap_walk.mm = mm; pagemap_walk.private = ± |