ocfs2: Add struct file to ocfs2_refcount_cow.

Add a new parameter 'struct file *' to ocfs2_refcount_cow
so that we can add readahead support later.

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

diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c
index e3efdd9..7155c5a 100644 (file)
--- a/fs/ocfs2/aops.c
+++ b/fs/ocfs2/aops.c
@@ -1693,7 +1693,7 @@ int ocfs2_write_begin_nolock(struct file *filp,
                mlog_errno(ret);
                goto out;
        } else if (ret == 1) {
-               ret = ocfs2_refcount_cow(inode, di_bh,
+               ret = ocfs2_refcount_cow(inode, filp, di_bh,
                                         wc->w_cpos, wc->w_clen, UINT_MAX);
                if (ret) {
                        mlog_errno(ret);

diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index 5920159..4331f57 100644 (file)
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -361,7 +361,7 @@ static int ocfs2_cow_file_pos(struct inode *inode,
        if (!(ext_flags & OCFS2_EXT_REFCOUNTED))
                goto out;
 
-       return ocfs2_refcount_cow(inode, fe_bh, cpos, 1, cpos+1);
+       return ocfs2_refcount_cow(inode, NULL, fe_bh, cpos, 1, cpos+1);
 
 out:
        return status;
@@ -904,8 +904,8 @@ static int ocfs2_zero_extend_get_range(struct inode *inode,
                zero_clusters = last_cpos - zero_cpos;
 
        if (needs_cow) {
-               rc = ocfs2_refcount_cow(inode, di_bh, zero_cpos, zero_clusters,
-                                       UINT_MAX);
+               rc = ocfs2_refcount_cow(inode, NULL, di_bh, zero_cpos,
+                                       zero_clusters, UINT_MAX);
                if (rc) {
                        mlog_errno(rc);
                        goto out;
@@ -2071,7 +2071,7 @@ static int ocfs2_prepare_inode_for_refcount(struct inode *inode,
 
        *meta_level = 1;
 
-       ret = ocfs2_refcount_cow(inode, di_bh, cpos, clusters, UINT_MAX);
+       ret = ocfs2_refcount_cow(inode, file, di_bh, cpos, clusters, UINT_MAX);
        if (ret)
                mlog_errno(ret);
 out:

diff --git a/fs/ocfs2/refcounttree.c b/fs/ocfs2/refcounttree.c
index 3ac5aa7..66dab3c 100644 (file)
--- a/fs/ocfs2/refcounttree.c
+++ b/fs/ocfs2/refcounttree.c
@@ -3404,6 +3404,7 @@ static int ocfs2_replace_cow(struct ocfs2_cow_context *context)
  * unrefcounted extent.
  */
 static int ocfs2_refcount_cow_hunk(struct inode *inode,
+                                  struct file *file,
                                   struct buffer_head *di_bh,
                                   u32 cpos, u32 write_len, u32 max_cpos)
 {
@@ -3481,6 +3482,7 @@ out:
  * clusters between cpos and cpos+write_len are safe to modify.
  */
 int ocfs2_refcount_cow(struct inode *inode,
+                      struct file *file,
                       struct buffer_head *di_bh,
                       u32 cpos, u32 write_len, u32 max_cpos)
 {
@@ -3500,7 +3502,7 @@ int ocfs2_refcount_cow(struct inode *inode,
                        num_clusters = write_len;
 
                if (ext_flags & OCFS2_EXT_REFCOUNTED) {
-                       ret = ocfs2_refcount_cow_hunk(inode, di_bh, cpos,
+                       ret = ocfs2_refcount_cow_hunk(inode, file, di_bh, cpos,
                                                      num_clusters, max_cpos);
                        if (ret) {
                                mlog_errno(ret);

diff --git a/fs/ocfs2/refcounttree.h b/fs/ocfs2/refcounttree.h
index 9983ba1..29cba0e 100644 (file)
--- a/fs/ocfs2/refcounttree.h
+++ b/fs/ocfs2/refcounttree.h
@@ -52,7 +52,8 @@ int ocfs2_prepare_refcount_change_for_del(struct inode *inode,
                                          u32 clusters,
                                          int *credits,
                                          int *ref_blocks);
-int ocfs2_refcount_cow(struct inode *inode, struct buffer_head *di_bh,
+int ocfs2_refcount_cow(struct inode *inode,
+                      struct file *filep, struct buffer_head *di_bh,
                       u32 cpos, u32 write_len, u32 max_cpos);
 
 typedef int (ocfs2_post_refcount_func)(struct inode *inode,