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Diffstat (limited to 'fs/ocfs2/mmap.c')
-rw-r--r--fs/ocfs2/mmap.c17
1 files changed, 8 insertions, 9 deletions
diff --git a/fs/ocfs2/mmap.c b/fs/ocfs2/mmap.c
index 904f39ff534..cd75508b1c8 100644
--- a/fs/ocfs2/mmap.c
+++ b/fs/ocfs2/mmap.c
@@ -60,24 +60,23 @@ static inline int ocfs2_vm_op_unblock_sigs(sigset_t *oldset)
60 return sigprocmask(SIG_SETMASK, oldset, NULL); 60 return sigprocmask(SIG_SETMASK, oldset, NULL);
61} 61}
62 62
63static struct page *ocfs2_nopage(struct vm_area_struct * area, 63static struct page *ocfs2_fault(struct vm_area_struct *area,
64 unsigned long address, 64 struct fault_data *fdata)
65 int *type)
66{ 65{
67 struct page *page = NOPAGE_SIGBUS; 66 struct page *page = NULL;
68 sigset_t blocked, oldset; 67 sigset_t blocked, oldset;
69 int ret; 68 int ret;
70 69
71 mlog_entry("(area=%p, address=%lu, type=%p)\n", area, address, 70 mlog_entry("(area=%p, page offset=%lu)\n", area, fdata->pgoff);
72 type);
73 71
74 ret = ocfs2_vm_op_block_sigs(&blocked, &oldset); 72 ret = ocfs2_vm_op_block_sigs(&blocked, &oldset);
75 if (ret < 0) { 73 if (ret < 0) {
74 fdata->type = VM_FAULT_SIGBUS;
76 mlog_errno(ret); 75 mlog_errno(ret);
77 goto out; 76 goto out;
78 } 77 }
79 78
80 page = filemap_nopage(area, address, type); 79 page = filemap_fault(area, fdata);
81 80
82 ret = ocfs2_vm_op_unblock_sigs(&oldset); 81 ret = ocfs2_vm_op_unblock_sigs(&oldset);
83 if (ret < 0) 82 if (ret < 0)
@@ -209,7 +208,7 @@ out:
209} 208}
210 209
211static struct vm_operations_struct ocfs2_file_vm_ops = { 210static struct vm_operations_struct ocfs2_file_vm_ops = {
212 .nopage = ocfs2_nopage, 211 .fault = ocfs2_fault,
213 .page_mkwrite = ocfs2_page_mkwrite, 212 .page_mkwrite = ocfs2_page_mkwrite,
214}; 213};
215 214
@@ -226,7 +225,7 @@ int ocfs2_mmap(struct file *file, struct vm_area_struct *vma)
226 ocfs2_meta_unlock(file->f_dentry->d_inode, lock_level); 225 ocfs2_meta_unlock(file->f_dentry->d_inode, lock_level);
227out: 226out:
228 vma->vm_ops = &ocfs2_file_vm_ops; 227 vma->vm_ops = &ocfs2_file_vm_ops;
229 vma->vm_flags |= VM_CAN_INVALIDATE; 228 vma->vm_flags |= VM_CAN_INVALIDATE | VM_CAN_NONLINEAR;
230 return 0; 229 return 0;
231} 230}
232 231