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authorKen Chen <kenchen@google.com>2007-11-14 16:59:44 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-11-14 18:45:40 -0800
commit45c682a68a87251d9a01383ce076ab21ee09812e (patch)
treed9fa6a02263c50ef97e1c525b91b29b6aedf9e40 /include
parent8cde045c7ee97573be6ce495b8f7c918182a2c7a (diff)
downloadop-kernel-dev-45c682a68a87251d9a01383ce076ab21ee09812e.zip
op-kernel-dev-45c682a68a87251d9a01383ce076ab21ee09812e.tar.gz
hugetlb: fix i_blocks accounting
For administrative purpose, we want to query actual block usage for hugetlbfs file via fstat. Currently, hugetlbfs always return 0. Fix that up since kernel already has all the information to track it properly. Signed-off-by: Ken Chen <kenchen@google.com> Acked-by: Adam Litke <agl@us.ibm.com> Cc: Badari Pulavarty <pbadari@us.ibm.com> Cc: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/hugetlb.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index 8104e5a..2496879 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -168,6 +168,8 @@ struct file *hugetlb_file_setup(const char *name, size_t);
int hugetlb_get_quota(struct address_space *mapping, long delta);
void hugetlb_put_quota(struct address_space *mapping, long delta);
+#define BLOCKS_PER_HUGEPAGE (HPAGE_SIZE / 512)
+
static inline int is_file_hugepages(struct file *file)
{
if (file->f_op == &hugetlbfs_file_operations)
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