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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>
This commit is contained in:
Tao Ma 2010-08-12 10:36:38 +08:00
parent b890823635
commit 155027121f
4 changed files with 10 additions and 7 deletions
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2
fs/ocfs2/aops.c
View File

@ -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);

8
fs/ocfs2/file.c
View File

@ -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:

4
fs/ocfs2/refcounttree.c
View File

@ -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);

3
fs/ocfs2/refcounttree.h
View File

@ -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,