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fs: remove inode_add_to_list/__inode_add_to_list

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Split up inode_add_to_list/__inode_add_to_list.  Locking for the two
lists will be split soon so these helpers really don't buy us much
anymore.

The __ prefixes for the sb list helpers will go away soon, but until
inode_lock is gone we'll need them to distinguish between the locked
and unlocked variants.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Christoph Hellwig 2010-10-23 07:15:32 -04:00 committed by Al Viro
parent f7899bd547
commit 646ec4615c
3 changed files with 38 additions and 41 deletions
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70
fs/inode.c
View file

@ -336,6 +336,28 @@ static void inode_lru_list_del(struct inode *inode)
}
}
static inline void __inode_sb_list_add(struct inode *inode)
{
list_add(&inode->i_sb_list, &inode->i_sb->s_inodes);
}
/**
* inode_sb_list_add - add inode to the superblock list of inodes
* @inode: inode to add
*/
void inode_sb_list_add(struct inode *inode)
{
spin_lock(&inode_lock);
__inode_sb_list_add(inode);
spin_unlock(&inode_lock);
}
EXPORT_SYMBOL_GPL(inode_sb_list_add);
static inline void __inode_sb_list_del(struct inode *inode)
{
list_del_init(&inode->i_sb_list);
}
static unsigned long hash(struct super_block *sb, unsigned long hashval)
{
unsigned long tmp;
@ -356,9 +378,10 @@ static unsigned long hash(struct super_block *sb, unsigned long hashval)
*/
void __insert_inode_hash(struct inode *inode, unsigned long hashval)
{
struct hlist_head *head = inode_hashtable + hash(inode->i_sb, hashval);
struct hlist_head *b = inode_hashtable + hash(inode->i_sb, hashval);
spin_lock(&inode_lock);
hlist_add_head(&inode->i_hash, head);
hlist_add_head(&inode->i_hash, b);
spin_unlock(&inode_lock);
}
EXPORT_SYMBOL(__insert_inode_hash);
@ -436,7 +459,7 @@ static void dispose_list(struct list_head *head)
spin_lock(&inode_lock);
__remove_inode_hash(inode);
list_del_init(&inode->i_sb_list);
__inode_sb_list_del(inode);
spin_unlock(&inode_lock);
wake_up_inode(inode);
@ -685,37 +708,6 @@ repeat:
return NULL;
}
static inline void
__inode_add_to_lists(struct super_block *sb, struct hlist_head *head,
struct inode *inode)
{
list_add(&inode->i_sb_list, &sb->s_inodes);
if (head)
hlist_add_head(&inode->i_hash, head);
}
/**
* inode_add_to_lists - add a new inode to relevant lists
* @sb: superblock inode belongs to
* @inode: inode to mark in use
*
* When an inode is allocated it needs to be accounted for, added to the in use
* list, the owning superblock and the inode hash. This needs to be done under
* the inode_lock, so export a function to do this rather than the inode lock
* itself. We calculate the hash list to add to here so it is all internal
* which requires the caller to have already set up the inode number in the
* inode to add.
*/
void inode_add_to_lists(struct super_block *sb, struct inode *inode)
{
struct hlist_head *head = inode_hashtable + hash(sb, inode->i_ino);
spin_lock(&inode_lock);
__inode_add_to_lists(sb, head, inode);
spin_unlock(&inode_lock);
}
EXPORT_SYMBOL_GPL(inode_add_to_lists);
/**
* new_inode - obtain an inode
* @sb: superblock
@ -743,7 +735,7 @@ struct inode *new_inode(struct super_block *sb)
inode = alloc_inode(sb);
if (inode) {
spin_lock(&inode_lock);
__inode_add_to_lists(sb, NULL, inode);
__inode_sb_list_add(inode);
inode->i_ino = ++last_ino;
inode->i_state = 0;
spin_unlock(&inode_lock);
@ -812,7 +804,8 @@ static struct inode *get_new_inode(struct super_block *sb,
if (set(inode, data))
goto set_failed;
__inode_add_to_lists(sb, head, inode);
hlist_add_head(&inode->i_hash, head);
__inode_sb_list_add(inode);
inode->i_state = I_NEW;
spin_unlock(&inode_lock);
@ -858,7 +851,8 @@ static struct inode *get_new_inode_fast(struct super_block *sb,
old = find_inode_fast(sb, head, ino);
if (!old) {
inode->i_ino = ino;
__inode_add_to_lists(sb, head, inode);
hlist_add_head(&inode->i_hash, head);
__inode_sb_list_add(inode);
inode->i_state = I_NEW;
spin_unlock(&inode_lock);
@ -1318,7 +1312,7 @@ static void iput_final(struct inode *inode)
*/
inode_lru_list_del(inode);
list_del_init(&inode->i_sb_list);
__inode_sb_list_del(inode);
spin_unlock(&inode_lock);
evict(inode);
remove_inode_hash(inode);

4
fs/xfs/linux-2.6/xfs_iops.c
View file

@ -760,7 +760,9 @@ xfs_setup_inode(
inode->i_ino = ip->i_ino;
inode->i_state = I_NEW;
inode_add_to_lists(ip->i_mount->m_super, inode);
inode_sb_list_add(inode);
insert_inode_hash(inode);
inode->i_mode = ip->i_d.di_mode;
inode->i_nlink = ip->i_d.di_nlink;

5
include/linux/fs.h
View file

@ -2171,7 +2171,6 @@ extern loff_t vfs_llseek(struct file *file, loff_t offset, int origin);
extern int inode_init_always(struct super_block *, struct inode *);
extern void inode_init_once(struct inode *);
extern void inode_add_to_lists(struct super_block *, struct inode *);
extern void iput(struct inode *);
extern struct inode * igrab(struct inode *);
extern ino_t iunique(struct super_block *, ino_t);
@ -2202,9 +2201,11 @@ extern int file_remove_suid(struct file *);
extern void __insert_inode_hash(struct inode *, unsigned long hashval);
extern void remove_inode_hash(struct inode *);
static inline void insert_inode_hash(struct inode *inode) {
static inline void insert_inode_hash(struct inode *inode)
{
__insert_inode_hash(inode, inode->i_ino);
}
extern void inode_sb_list_add(struct inode *inode);
#ifdef CONFIG_BLOCK
extern void submit_bio(int, struct bio *);