#include <linux/radix-tree.h>
#include <linux/prio_tree.h>
#include <linux/init.h>
+#include <linux/sched.h>
#include <asm/atomic.h>
#include <asm/semaphore.h>
#define vfs_check_frozen(sb, level) \
wait_event((sb)->s_wait_unfrozen, ((sb)->s_frozen < (level)))
+static inline void get_fs_excl(void)
+{
+ atomic_inc(¤t->fs_excl);
+}
+
+static inline void put_fs_excl(void)
+{
+ atomic_dec(¤t->fs_excl);
+}
+
+static inline int has_fs_excl(void)
+{
+ return atomic_read(¤t->fs_excl);
+}
+
+
/*
* Superblock locking.
*/
static inline void lock_super(struct super_block * sb)
{
+ get_fs_excl();
down(&sb->s_lock);
}
static inline void unlock_super(struct super_block * sb)
{
+ put_fs_excl();
up(&sb->s_lock);
}
extern ino_t iunique(struct super_block *, ino_t);
extern int inode_needs_sync(struct inode *inode);
extern void generic_delete_inode(struct inode *inode);
+extern void generic_drop_inode(struct inode *inode);
extern struct inode *ilookup5(struct super_block *sb, unsigned long hashval,
int (*test)(struct inode *, void *), void *data);