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>

diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c
index 0de69c9..e3efdd9 100644 (file)
--- 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 c48e93f..7606f66 100644 (file)
--- 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 af2b8fe..b04d696 100644 (file)
--- 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);