[PATCH 2/9] Unionfs: use i_size wrappers

[Erez Zadok <ezk@cs.sunysb.edu>]

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
---
 fs/unionfs/commonfops.c |   10 +++++-----
 fs/unionfs/inode.c      |    4 ++--
 fs/unionfs/rdstate.c    |    4 ++--
 fs/unionfs/rename.c     |    4 ++--
 fs/unionfs/super.c      |    2 +-
 5 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/fs/unionfs/commonfops.c b/fs/unionfs/commonfops.c
index ba84529..624f920 100644
--- a/fs/unionfs/commonfops.c
+++ b/fs/unionfs/commonfops.c
@@ -72,7 +72,8 @@ retry:
 	dput(tmp_dentry);
 
 	err = copyup_named_file(dentry->d_parent->d_inode, file, name, bstart,
-				bindex, file->f_path.dentry->d_inode->i_size);
+				bindex,
+				i_size_read(file->f_path.dentry->d_inode));
 	if (err) {
 		if (unlikely(err == -EEXIST))
 			goto retry;
@@ -199,7 +200,6 @@ static int open_highest_file(struct file *file, bool willwrite)
 	struct dentry *dentry = file->f_path.dentry;
 	struct inode *parent_inode = dentry->d_parent->d_inode;
 	struct super_block *sb = dentry->d_sb;
-	size_t inode_size = dentry->d_inode->i_size;
 
 	bstart = dbstart(dentry);
 	bend = dbend(dentry);
@@ -208,7 +208,7 @@ static int open_highest_file(struct file *file, bool willwrite)
 	if (willwrite && IS_WRITE_FLAG(file->f_flags) && is_robranch(dentry)) {
 		for (bindex = bstart - 1; bindex >= 0; bindex--) {
 			err = copyup_file(parent_inode, file, bstart, bindex,
-					  inode_size);
+					  i_size_read(dentry->d_inode));
 			if (!err)
 				break;
 		}
@@ -243,7 +243,6 @@ static int do_delayed_copyup(struct file *file)
 	int bindex, bstart, bend, err = 0;
 	struct dentry *dentry = file->f_path.dentry;
 	struct inode *parent_inode = dentry->d_parent->d_inode;
-	loff_t inode_size = dentry->d_inode->i_size;
 
 	bstart = fbstart(file);
 	bend = fbend(file);
@@ -255,7 +254,8 @@ static int do_delayed_copyup(struct file *file)
 	for (bindex = bstart - 1; bindex >= 0; bindex--) {
 		if (!d_deleted(dentry))
 			err = copyup_file(parent_inode, file, bstart,
-					  bindex, inode_size);
+					  bindex,
+					  i_size_read(dentry->d_inode));
 		else
 			err = copyup_deleted_file(file, dentry, bstart,
 						  bindex);
diff --git a/fs/unionfs/inode.c b/fs/unionfs/inode.c
index bcefe45..223a64a 100644
--- a/fs/unionfs/inode.c
+++ b/fs/unionfs/inode.c
@@ -312,7 +312,7 @@ docopyup:
 					    old_dentry, old_bstart,
 					    bindex, old_dentry->d_name.name,
 					    old_dentry->d_name.len, NULL,
-					    old_dentry->d_inode->i_size);
+					    i_size_read(old_dentry->d_inode));
 			if (!err) {
 				lower_new_dentry =
 					create_parents(dir, new_dentry,
@@ -1043,7 +1043,7 @@ static int unionfs_setattr(struct dentry *dentry, struct iattr *ia)
 				continue;
 			/* Only if its the leftmost file, copyup the file */
 			for (i = bstart - 1; i >= 0; i--) {
-				loff_t size = dentry->d_inode->i_size;
+				loff_t size = i_size_read(dentry->d_inode);
 				if (ia->ia_valid & ATTR_SIZE)
 					size = ia->ia_size;
 				err = copyup_dentry(dentry->d_parent->d_inode,
diff --git a/fs/unionfs/rdstate.c b/fs/unionfs/rdstate.c
index 0df5f52..bdf335d 100644
--- a/fs/unionfs/rdstate.c
+++ b/fs/unionfs/rdstate.c
@@ -76,10 +76,10 @@ static int guesstimate_hash_size(struct inode *inode)
 		if (!lower_inode)
 			continue;
 
-		if (lower_inode->i_size == DENTPAGE)
+		if (i_size_read(lower_inode) == DENTPAGE)
 			hashsize += DENTPERONEPAGE;
 		else
-			hashsize += (lower_inode->i_size / DENTPAGE) *
+			hashsize += (i_size_read(lower_inode) / DENTPAGE) *
 				DENTPERPAGE;
 	}
 
diff --git a/fs/unionfs/rename.c b/fs/unionfs/rename.c
index 4a35b5e..452d1e7 100644
--- a/fs/unionfs/rename.c
+++ b/fs/unionfs/rename.c
@@ -234,8 +234,8 @@ static int do_unionfs_rename(struct inode *old_dir,
 			err = copyup_dentry(old_dentry->d_parent->d_inode,
 					    old_dentry, old_bstart, bindex,
 					    old_dentry->d_name.name,
-					    old_dentry->d_name.len,
-					    NULL, old_dentry->d_inode->i_size);
+					    old_dentry->d_name.len, NULL,
+					    i_size_read(old_dentry->d_inode));
 			/* if copyup failed, try next branch to the left */
 			if (err)
 				continue;
diff --git a/fs/unionfs/super.c b/fs/unionfs/super.c
index 7d28045..70487bf 100644
--- a/fs/unionfs/super.c
+++ b/fs/unionfs/super.c
@@ -69,7 +69,7 @@ static void unionfs_read_inode(struct inode *inode)
  */
 static void unionfs_delete_inode(struct inode *inode)
 {
-	inode->i_size = 0;	/* every f/s seems to do that */
+	i_size_write(inode, 0);	/* every f/s seems to do that */
 
 	if (inode->i_data.nrpages)
 		truncate_inode_pages(&inode->i_data, 0);
-- 
1.5.2.2

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