[PATCH v2 09/20] ovl: move inode helpers to inode.c

Amir Goldstein
2017-06-07T07:51:26Z

fs/overlayfs/inode.c | 16 ++++++++++++++++
fs/overlayfs/overlayfs.h | 31 ++++++++++++++++---------------
fs/overlayfs/util.c | 16 ----------------
3 files changed, 32 insertions(+), 31 deletions(-)

diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c
index d613e2c41242..ab394510736e 100644
--- a/fs/overlayfs/inode.c
+++ b/fs/overlayfs/inode.c
@@ -451,6 +451,22 @@ struct inode *ovl_new_inode(struct super_block *sb, umode_t mode, dev_t rdev)
return inode;
}

+void ovl_inode_init(struct inode *inode, struct inode *realinode, bool is_upper)
+{
+ WRITE_ONCE(inode->i_private, (unsigned long) realinode |
+ (is_upper ? OVL_ISUPPER_MASK : 0));
+}
+
+void ovl_inode_update(struct inode *inode, struct inode *upperinode)
+{
+ WARN_ON(!upperinode);
+ WARN_ON(!inode_unhashed(inode));
+ WRITE_ONCE(inode->i_private,
+ (unsigned long) upperinode | OVL_ISUPPER_MASK);
+ if (!S_ISDIR(upperinode->i_mode))
+ __insert_inode_hash(inode, (unsigned long) upperinode);
+}
+
static int ovl_inode_test(struct inode *inode, void *data)
{
return ovl_inode_real(inode, NULL) == data;
diff --git a/fs/overlayfs/overlayfs.h b/fs/overlayfs/overlayfs.h
index 47d62c585c96..c4669b6b0e20 100644
--- a/fs/overlayfs/overlayfs.h
+++ b/fs/overlayfs/overlayfs.h
@@ -64,8 +64,6 @@ struct ovl_fh {
u8 fid[0]; /* file identifier */
} __packed;

-#define OVL_ISUPPER_MASK 1UL
-
static inline int ovl_do_rmdir(struct inode *dir, struct dentry *dentry)
{
int err = vfs_rmdir(dir, dentry);
@@ -179,16 +177,6 @@ static inline struct dentry *ovl_do_tmpfile(struct dentry *dentry, umode_t mode)
return ret;
}

-static inline struct inode *ovl_inode_real(struct inode *inode, bool *is_upper)
-{
- unsigned long x = (unsigned long) READ_ONCE(inode->i_private);
-
- if (is_upper)
- *is_upper = x & OVL_ISUPPER_MASK;
-
- return (struct inode *) (x & ~OVL_ISUPPER_MASK);
-}
-
/* util.c */
int ovl_want_write(struct dentry *dentry);
void ovl_drop_write(struct dentry *dentry);
@@ -218,9 +206,6 @@ bool ovl_redirect_dir(struct super_block *sb);
const char *ovl_dentry_get_redirect(struct dentry *dentry);
void ovl_dentry_set_redirect(struct dentry *dentry, const char *redirect);
void ovl_dentry_update(struct dentry *dentry, struct dentry *upperdentry);
-void ovl_inode_init(struct inode *inode, struct inode *realinode,
- bool is_upper);
-void ovl_inode_update(struct inode *inode, struct inode *upperinode);
void ovl_dentry_version_inc(struct dentry *dentry);
u64 ovl_dentry_version_get(struct dentry *dentry);
bool ovl_is_whiteout(struct dentry *dentry);
@@ -271,7 +256,23 @@ int ovl_update_time(struct inode *inode, struct timespec *ts, int flags);
bool ovl_is_private_xattr(const char *name);

struct inode *ovl_new_inode(struct super_block *sb, umode_t mode, dev_t rdev);
+void ovl_inode_init(struct inode *inode, struct inode *realinode,
+ bool is_upper);
+void ovl_inode_update(struct inode *inode, struct inode *upperinode);
struct inode *ovl_get_inode(struct super_block *sb, struct inode *realinode);
+
+#define OVL_ISUPPER_MASK 1UL
+
+static inline struct inode *ovl_inode_real(struct inode *inode, bool *is_upper)
+{
+ unsigned long x = (unsigned long) READ_ONCE(inode->i_private);
+
+ if (is_upper)
+ *is_upper = x & OVL_ISUPPER_MASK;
+
+ return (struct inode *) (x & ~OVL_ISUPPER_MASK);
+}
+
static inline void ovl_copyattr(struct inode *from, struct inode *to)
{
to->i_uid = from->i_uid;
diff --git a/fs/overlayfs/util.c b/fs/overlayfs/util.c
index 6048f204be07..c42eb2eb9313 100644
--- a/fs/overlayfs/util.c
+++ b/fs/overlayfs/util.c
@@ -256,22 +256,6 @@ void ovl_dentry_update(struct dentry *dentry, struct dentry *upperdentry)
oe->__upperdentry = upperdentry;
}

-void ovl_inode_init(struct inode *inode, struct inode *realinode, bool is_upper)
-{
- WRITE_ONCE(inode->i_private, (unsigned long) realinode |
- (is_upper ? OVL_ISUPPER_MASK : 0));
-}
-
-void ovl_inode_update(struct inode *inode, struct inode *upperinode)
-{
- WARN_ON(!upperinode);
- WARN_ON(!inode_unhashed(inode));
- WRITE_ONCE(inode->i_private,
- (unsigned long) upperinode | OVL_ISUPPER_MASK);
- if (!S_ISDIR(upperinode->i_mode))
- __insert_inode_hash(inode, (unsigned long) upperinode);
-}
-
void ovl_dentry_version_inc(struct dentry *dentry)
{
struct ovl_entry *oe = dentry->d_fsdata;
--
2.7.4