[PATCH] hugetlb: Remove spurious i_blocks accounting check

[PATCH] hugetlb: Remove spurious i_blocks accounting check

[Adam Litke]

Fix up hugetlb-simple-overcommit-check.patch in -mm tree

Pft.  This bit of code that Bill Irwin pointed out snuck in here from another
accounting approach I was investigating.

Signed-off-by: Adam Litke <agl@us.ibm.com>

 inode.c |    9 ---------
 1 files changed, 9 deletions(-)
diff -upN reference/fs/hugetlbfs/inode.c current/fs/hugetlbfs/inode.c
--- reference/fs/hugetlbfs/inode.c
+++ current/fs/hugetlbfs/inode.c
@@ -75,14 +75,6 @@ huge_pages_needed(struct address_space *
 	pgoff_t endpg = next + ((end - start) >> PAGE_SHIFT);
 	struct inode *inode = vma->vm_file->f_dentry->d_inode;
 
-	/*
-	 * Shared memory segments are accounted for at shget time,
-	 * not at shmat (when the mapping is actually created) so 
-	 * check here if the memory has already been accounted for.
-	 */
-	if (inode->i_blocks != 0)
-		return 0;
-
 	pagevec_init(&pvec, 0);
 	while (next < endpg) {
 		if (!pagevec_lookup(&pvec, mapping, next, PAGEVEC_SIZE))
@@ -844,7 +836,6 @@ struct file *hugetlb_zero_setup(size_t s
 	d_instantiate(dentry, inode);
 	inode->i_size = size;
 	inode->i_nlink = 0;
-	inode->i_blocks = 1;
 	file->f_vfsmnt = mntget(hugetlbfs_vfsmount);
 	file->f_dentry = dentry;
 	file->f_mapping = inode->i_mapping;

-- 
Adam Litke - (agl at us.ibm.com)
IBM Linux Technology Center

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