Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6

[linux-2.6] / fs / autofs4 / autofs_i.h

diff --git a/fs/autofs4/autofs_i.h b/fs/autofs4/autofs_i.h
index d6603d02304ceed0d0a1c0e6c80e497bcaf58394..69a2f5c9231943f6adbe4497915b294fe7991a28 100644 (file)
--- a/fs/autofs4/autofs_i.h
+++ b/fs/autofs4/autofs_i.h
@@ -35,13 +35,11 @@
 /* #define DEBUG */
 
 #ifdef DEBUG
-#define DPRINTK(fmt,args...) do { printk(KERN_DEBUG "pid %d: %s: " fmt "\n" , current->pid , __FUNCTION__ , ##args); } while(0)
+#define DPRINTK(fmt,args...) do { printk(KERN_DEBUG "pid %d: %s: " fmt "\n" , current->pid , __func__ , ##args); } while(0)
 #else
 #define DPRINTK(fmt,args...) do {} while(0)
 #endif
 
-#define AUTOFS_SUPER_MAGIC 0x0187
-
 /* Unified info structure.  This is pointed to by both the dentry and
    inode structures.  Each file in the filesystem has an instance of this
    structure.  It holds a reference to the dentry, so dentries are never
@@ -54,6 +52,11 @@ struct autofs_info {
 
        int             flags;
 
+       struct completion expire_complete;
+
+       struct list_head active;
+       struct list_head expiring;
+
        struct autofs_sb_info *sbi;
        unsigned long last_used;
        atomic_t count;
@@ -68,15 +71,14 @@ struct autofs_info {
 };
 
 #define AUTOFS_INF_EXPIRING    (1<<0) /* dentry is in the process of expiring */
+#define AUTOFS_INF_MOUNTPOINT  (1<<1) /* mountpoint status for direct expire */
 
 struct autofs_wait_queue {
        wait_queue_head_t queue;
        struct autofs_wait_queue *next;
        autofs_wqt_t wait_queue_token;
        /* We use the following to see what we are waiting for */
-       unsigned int hash;
-       unsigned int len;
-       char *name;
+       struct qstr name;
        u32 dev;
        u64 ino;
        uid_t uid;
@@ -85,7 +87,7 @@ struct autofs_wait_queue {
        pid_t tgid;
        /* This is for status reporting upon return */
        int status;
-       atomic_t wait_ctr;
+       unsigned int wait_ctr;
 };
 
 #define AUTOFS_SBI_MAGIC 0x6d4a556d
@@ -96,7 +98,6 @@ struct autofs_wait_queue {
 
 struct autofs_sb_info {
        u32 magic;
-       struct dentry *root;
        int pipefd;
        struct file *pipe;
        pid_t oz_pgrp;
@@ -113,6 +114,9 @@ struct autofs_sb_info {
        struct mutex wq_mutex;
        spinlock_t fs_lock;
        struct autofs_wait_queue *queues; /* Wait queue pointer */
+       spinlock_t lookup_lock;
+       struct list_head active_list;
+       struct list_head expiring_list;
 };
 
 static inline struct autofs_sb_info *autofs4_sbi(struct super_block *sb)
@@ -130,30 +134,27 @@ static inline struct autofs_info *autofs4_dentry_ino(struct dentry *dentry)
    filesystem without "magic".) */
 
 static inline int autofs4_oz_mode(struct autofs_sb_info *sbi) {
-       return sbi->catatonic || process_group(current) == sbi->oz_pgrp;
+       return sbi->catatonic || task_pgrp_nr(current) == sbi->oz_pgrp;
 }
 
 /* Does a dentry have some pending activity? */
 static inline int autofs4_ispending(struct dentry *dentry)
 {
        struct autofs_info *inf = autofs4_dentry_ino(dentry);
-       int pending = 0;
 
        if (dentry->d_flags & DCACHE_AUTOFS_PENDING)
                return 1;
 
-       if (inf) {
-               spin_lock(&inf->sbi->fs_lock);
-               pending = inf->flags & AUTOFS_INF_EXPIRING;
-               spin_unlock(&inf->sbi->fs_lock);
-       }
+       if (inf->flags & AUTOFS_INF_EXPIRING)
+               return 1;
 
-       return pending;
+       return 0;
 }
 
 static inline void autofs4_copy_atime(struct file *src, struct file *dst)
 {
-       dst->f_dentry->d_inode->i_atime = src->f_dentry->d_inode->i_atime;
+       dst->f_path.dentry->d_inode->i_atime =
+               src->f_path.dentry->d_inode->i_atime;
        return;
 }
 
@@ -162,6 +163,7 @@ void autofs4_free_ino(struct autofs_info *);
 
 /* Expiration */
 int is_autofs4_dentry(struct dentry *);
+int autofs4_expire_wait(struct dentry *dentry);
 int autofs4_expire_run(struct super_block *, struct vfsmount *,
                        struct autofs_sb_info *,
                        struct autofs_packet_expire __user *);
@@ -170,11 +172,11 @@ int autofs4_expire_multi(struct super_block *, struct vfsmount *,
 
 /* Operations structures */
 
-extern struct inode_operations autofs4_symlink_inode_operations;
-extern struct inode_operations autofs4_dir_inode_operations;
-extern struct inode_operations autofs4_root_inode_operations;
-extern struct inode_operations autofs4_indirect_root_inode_operations;
-extern struct inode_operations autofs4_direct_root_inode_operations;
+extern const struct inode_operations autofs4_symlink_inode_operations;
+extern const struct inode_operations autofs4_dir_inode_operations;
+extern const struct inode_operations autofs4_root_inode_operations;
+extern const struct inode_operations autofs4_indirect_root_inode_operations;
+extern const struct inode_operations autofs4_direct_root_inode_operations;
 extern const struct file_operations autofs4_dir_operations;
 extern const struct file_operations autofs4_root_operations;
 
@@ -231,4 +233,4 @@ out:
 }
 
 void autofs4_dentry_release(struct dentry *);
-
+extern void autofs4_kill_sb(struct super_block *);