Commit 15502712 authored by Tao Ma's avatar Tao Ma
Browse files

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: default avatarTao Ma <tao.ma@oracle.com>
parent b8908236

fs/ocfs2/aops.c

+1 −1
Original line number Diff line number Diff line
@@ -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);

fs/ocfs2/file.c

+4 −4
Original line number Diff line number Diff line
@@ -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:

fs/ocfs2/refcounttree.c

+3 −1
Original line number Diff line number Diff line
@@ -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 @@ static int ocfs2_refcount_cow_hunk(struct inode *inode, 
 * 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);

fs/ocfs2/refcounttree.h

+2 −1
Original line number Diff line number Diff line
@@ -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,