[Ocfs2-devel] [PATCH 1/4] ocfs2: Add struct file to ocfs2_refcount_cow.
Tao Ma
tao.ma at oracle.com
Tue Jun 29 01:35:38 PDT 2010
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 at oracle.com>
---
fs/ocfs2/aops.c | 2 +-
fs/ocfs2/file.c | 13 ++++++++-----
fs/ocfs2/refcounttree.c | 4 +++-
fs/ocfs2/refcounttree.h | 3 ++-
4 files changed, 14 insertions(+), 8 deletions(-)
diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c
index 4dfaa6e..5f94923 100644
--- a/fs/ocfs2/aops.c
+++ b/fs/ocfs2/aops.c
@@ -1691,7 +1691,7 @@ int ocfs2_write_begin_nolock(struct address_space *mapping,
mlog_errno(ret);
goto out;
} else if (ret == 1) {
- ret = ocfs2_refcount_cow(inode, di_bh,
+ ret = ocfs2_refcount_cow(inode, NULL, 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 ca527ca..06780f0 100644
--- 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;
@@ -1864,6 +1864,7 @@ out:
}
static int ocfs2_prepare_inode_for_refcount(struct inode *inode,
+ struct file *file,
loff_t pos, size_t count,
int *meta_level)
{
@@ -1881,7 +1882,7 @@ 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:
@@ -1889,7 +1890,7 @@ out:
return ret;
}
-static int ocfs2_prepare_inode_for_write(struct dentry *dentry,
+static int ocfs2_prepare_inode_for_write(struct file *file,
loff_t *ppos,
size_t count,
int appending,
@@ -1897,6 +1898,7 @@ static int ocfs2_prepare_inode_for_write(struct dentry *dentry,
int *has_refcount)
{
int ret = 0, meta_level = 0;
+ struct dentry *dentry = file->f_path.dentry;
struct inode *inode = dentry->d_inode;
loff_t saved_pos, end;
@@ -1952,6 +1954,7 @@ static int ocfs2_prepare_inode_for_write(struct dentry *dentry,
meta_level = -1;
ret = ocfs2_prepare_inode_for_refcount(inode,
+ file,
saved_pos,
count,
&meta_level);
@@ -2066,7 +2069,7 @@ relock:
}
can_do_direct = direct_io;
- ret = ocfs2_prepare_inode_for_write(file->f_path.dentry, ppos,
+ ret = ocfs2_prepare_inode_for_write(file, ppos,
iocb->ki_left, appending,
&can_do_direct, &has_refcount);
if (ret < 0) {
@@ -2193,7 +2196,7 @@ static int ocfs2_splice_to_file(struct pipe_inode_info *pipe,
{
int ret;
- ret = ocfs2_prepare_inode_for_write(out->f_path.dentry, &sd->pos,
+ ret = ocfs2_prepare_inode_for_write(out, &sd->pos,
sd->total_len, 0, NULL, NULL);
if (ret < 0) {
mlog_errno(ret);
diff --git a/fs/ocfs2/refcounttree.c b/fs/ocfs2/refcounttree.c
index 4793f36..7636174 100644
--- a/fs/ocfs2/refcounttree.c
+++ b/fs/ocfs2/refcounttree.c
@@ -3398,6 +3398,7 @@ 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)
{
@@ -3475,6 +3476,7 @@ 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)
{
@@ -3494,7 +3496,7 @@ 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
--- 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,
--
1.7.1.GIT
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