From: Huajun Li <huajun...@intel.com>
Add the function f2fs_reserve_block() to easily reserve new blocks.
Signed-off-by: Huajun Li <huajun...@intel.com>
Signed-off-by: Haicheng Li <haicheng...@linux.intel.com>
Signed-off-by: Weihong Xu <weihong...@intel.com>
---
fs/f2fs/data.c | 29 ++++++++++++++++++-----------
fs/f2fs/f2fs.h | 1 +
2 files changed, 19 insertions(+), 11 deletions(-)
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index c8887d8..7b31911 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -64,6 +64,23 @@ int reserve_new_block(struct dnode_of_data *dn)
return 0;
}
+int f2fs_reserve_block(struct inode *inode,
+ struct dnode_of_data *dn, pgoff_t index)
+{
+ int err;
+
+ set_new_dnode(dn, inode, NULL, NULL, 0);
+ err = get_dnode_of_data(dn, index, ALLOC_NODE);
+ if (err)
+ return err;
+ if (dn->data_blkaddr == NULL_ADDR)
+ err = reserve_new_block(dn);
+
+ f2fs_put_dnode(dn);
+
+ return err;
+}
+
static int check_extent_cache(struct inode *inode, pgoff_t pgofs,
struct buffer_head *bh_result)
{
@@ -644,19 +661,9 @@ repeat:
*pagep = page;
f2fs_lock_op(sbi);
-
- set_new_dnode(&dn, inode, NULL, NULL, 0);
- err = get_dnode_of_data(&dn, index, ALLOC_NODE);
- if (err)
- goto err;
-
- if (dn.data_blkaddr == NULL_ADDR)
- err = reserve_new_block(&dn);
-
- f2fs_put_dnode(&dn);
+ err = f2fs_reserve_block(inode, &dn, index);
if (err)
goto err;
-
f2fs_unlock_op(sbi);
if ((len == PAGE_CACHE_SIZE) || PageUptodate(page))
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index e50a8b0..4f34330 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -1112,6 +1112,7 @@ void destroy_checkpoint_caches(void);
* data.c
*/
int reserve_new_block(struct dnode_of_data *);
+int f2fs_reserve_block(struct inode *, struct dnode_of_data *, pgoff_t);
void update_extent_cache(block_t, struct dnode_of_data *);
struct page *find_data_page(struct inode *, pgoff_t, bool);
struct page *get_lock_data_page(struct inode *, pgoff_t);
--
1.7.9.5
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