ocfs2: pass struct file* to ocfs2_write_begin_nolock.

struct file * has file_ra_state to store the readahead state
and data. So pass this to ocfs2_write_begin_nolock so that
it can be used in ocfs2_refcount_cow.

Signed-off-by: Tao Ma <tao.ma@oracle.com>

3 files changed, 9 insertions, 6 deletions

diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c
index 0de69c9a08be..e3efdd93773f 100644
--- a/fs/ocfs2/aops.c
+++ b/fs/ocfs2/aops.c
@@ -1642,7 +1642,8 @@ static int ocfs2_zero_tail(struct inode *inode, struct buffer_head *di_bh,
         return ret;
 }
 
-int ocfs2_write_begin_nolock(struct address_space *mapping,
+int ocfs2_write_begin_nolock(struct file *filp,
+                             struct address_space *mapping,
                              loff_t pos, unsigned len, unsigned flags,
                              struct page **pagep, void **fsdata,
                              struct buffer_head *di_bh, struct page *mmap_page)
@@ -1854,7 +1855,7 @@ static int ocfs2_write_begin(struct file *file, struct address_space *mapping,
          */
         down_write(&OCFS2_I(inode)->ip_alloc_sem);
 
-        ret = ocfs2_write_begin_nolock(mapping, pos, len, flags, pagep,
+        ret = ocfs2_write_begin_nolock(file, mapping, pos, len, flags, pagep,
                                        fsdata, di_bh, NULL);
         if (ret) {
                 mlog_errno(ret);
diff --git a/fs/ocfs2/aops.h b/fs/ocfs2/aops.h
index c48e93ffc513..7606f663da6d 100644
--- a/fs/ocfs2/aops.h
+++ b/fs/ocfs2/aops.h
@@ -48,7 +48,8 @@ int ocfs2_write_end_nolock(struct address_space *mapping,
                            loff_t pos, unsigned len, unsigned copied,
                            struct page *page, void *fsdata);
 
-int ocfs2_write_begin_nolock(struct address_space *mapping,
+int ocfs2_write_begin_nolock(struct file *filp,
+                             struct address_space *mapping,
                              loff_t pos, unsigned len, unsigned flags,
                              struct page **pagep, void **fsdata,
                              struct buffer_head *di_bh, struct page *mmap_page);
diff --git a/fs/ocfs2/mmap.c b/fs/ocfs2/mmap.c
index af2b8fe1f139..b04d6961c0d4 100644
--- a/fs/ocfs2/mmap.c
+++ b/fs/ocfs2/mmap.c
@@ -59,10 +59,11 @@ static int ocfs2_fault(struct vm_area_struct *area, struct vm_fault *vmf)
         return ret;
 }
 
-static int __ocfs2_page_mkwrite(struct inode *inode, struct buffer_head *di_bh,
+static int __ocfs2_page_mkwrite(struct file *file, struct buffer_head *di_bh,
                                 struct page *page)
 {
         int ret;
+        struct inode *inode = file->f_path.dentry->d_inode;
         struct address_space *mapping = inode->i_mapping;
         loff_t pos = page_offset(page);
         unsigned int len = PAGE_CACHE_SIZE;
@@ -109,7 +110,7 @@ static int __ocfs2_page_mkwrite(struct inode *inode, struct buffer_head *di_bh,
         if (page->index == last_index)
                 len = size & ~PAGE_CACHE_MASK;
 
-        ret = ocfs2_write_begin_nolock(mapping, pos, len, 0, &locked_page,
+        ret = ocfs2_write_begin_nolock(file, mapping, pos, len, 0, &locked_page,
                                        &fsdata, di_bh, page);
         if (ret) {
                 if (ret != -ENOSPC)
@@ -157,7 +158,7 @@ static int ocfs2_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
          */
         down_write(&OCFS2_I(inode)->ip_alloc_sem);
 
-        ret = __ocfs2_page_mkwrite(inode, di_bh, page);
+        ret = __ocfs2_page_mkwrite(vma->vm_file, di_bh, page);
 
         up_write(&OCFS2_I(inode)->ip_alloc_sem);