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-rw-r--r--fs/hugetlbfs/inode.c21
1 files changed, 9 insertions, 12 deletions
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index 678fc72..e6410d8 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -59,7 +59,6 @@ static void huge_pagevec_release(struct pagevec *pvec)
static int hugetlbfs_file_mmap(struct file *file, struct vm_area_struct *vma)
{
struct inode *inode = file->f_dentry->d_inode;
- struct hugetlbfs_inode_info *info = HUGETLBFS_I(inode);
loff_t len, vma_len;
int ret;
@@ -87,9 +86,10 @@ static int hugetlbfs_file_mmap(struct file *file, struct vm_area_struct *vma)
if (!(vma->vm_flags & VM_WRITE) && len > inode->i_size)
goto out;
- if (vma->vm_flags & VM_MAYSHARE)
- if (hugetlb_extend_reservation(info, len >> HPAGE_SHIFT) != 0)
- goto out;
+ if (vma->vm_flags & VM_MAYSHARE &&
+ hugetlb_reserve_pages(inode, vma->vm_pgoff >> (HPAGE_SHIFT-PAGE_SHIFT),
+ len >> HPAGE_SHIFT))
+ goto out;
ret = 0;
hugetlb_prefault_arch_hook(vma->vm_mm);
@@ -195,12 +195,8 @@ static void truncate_hugepages(struct inode *inode, loff_t lstart)
const pgoff_t start = lstart >> HPAGE_SHIFT;
struct pagevec pvec;
pgoff_t next;
- int i;
+ int i, freed = 0;
- hugetlb_truncate_reservation(HUGETLBFS_I(inode),
- lstart >> HPAGE_SHIFT);
- if (!mapping->nrpages)
- return;
pagevec_init(&pvec, 0);
next = start;
while (1) {
@@ -221,10 +217,12 @@ static void truncate_hugepages(struct inode *inode, loff_t lstart)
truncate_huge_page(page);
unlock_page(page);
hugetlb_put_quota(mapping);
+ freed++;
}
huge_pagevec_release(&pvec);
}
BUG_ON(!lstart && mapping->nrpages);
+ hugetlb_unreserve_pages(inode, start, freed);
}
static void hugetlbfs_delete_inode(struct inode *inode)
@@ -366,6 +364,7 @@ static struct inode *hugetlbfs_get_inode(struct super_block *sb, uid_t uid,
inode->i_mapping->a_ops = &hugetlbfs_aops;
inode->i_mapping->backing_dev_info =&hugetlbfs_backing_dev_info;
inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
+ INIT_LIST_HEAD(&inode->i_mapping->private_list);
info = HUGETLBFS_I(inode);
mpol_shared_policy_init(&info->policy, MPOL_DEFAULT, NULL);
switch (mode & S_IFMT) {
@@ -538,7 +537,6 @@ static struct inode *hugetlbfs_alloc_inode(struct super_block *sb)
hugetlbfs_inc_free_inodes(sbinfo);
return NULL;
}
- p->prereserved_hpages = 0;
return &p->vfs_inode;
}
@@ -781,8 +779,7 @@ struct file *hugetlb_zero_setup(size_t size)
goto out_file;
error = -ENOMEM;
- if (hugetlb_extend_reservation(HUGETLBFS_I(inode),
- size >> HPAGE_SHIFT) != 0)
+ if (hugetlb_reserve_pages(inode, 0, size >> HPAGE_SHIFT))
goto out_inode;
d_instantiate(dentry, inode);
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