vserver 1.9.3

[linux-2.6.git] / fs / xfs / linux-2.6 / xfs_vfs.h

diff --git a/fs/xfs/linux-2.6/xfs_vfs.h b/fs/xfs/linux-2.6/xfs_vfs.h
index 3c7ca84..aab7013 100644 (file)
--- a/fs/xfs/linux-2.6/xfs_vfs.h
+++ b/fs/xfs/linux-2.6/xfs_vfs.h
@@ -36,6 +36,7 @@
 #include "xfs_fs.h"
 
 struct fid;
+struct vfs;
 struct cred;
 struct vnode;
 struct kstatfs;
@@ -45,14 +46,24 @@ struct xfs_mount_args;
 
 typedef struct kstatfs xfs_statfs_t;
 
+typedef struct vfs_sync_work {
+       struct list_head        w_list;
+       struct vfs              *w_vfs;
+       void                    *w_data;        /* syncer routine argument */
+       void                    (*w_syncer)(struct vfs *, void *);
+} vfs_sync_work_t;
+
 typedef struct vfs {
        u_int                   vfs_flag;       /* flags */
        xfs_fsid_t              vfs_fsid;       /* file system ID */
        xfs_fsid_t              *vfs_altfsid;   /* An ID fixed for life of FS */
        bhv_head_t              vfs_bh;         /* head of vfs behavior chain */
-       struct super_block      *vfs_super;     /* Linux superblock structure */
-       struct task_struct      *vfs_sync_task; /* xfssyncd process */
-       int                     vfs_sync_seq;   /* xfssyncd generation number */
+       struct super_block      *vfs_super;     /* generic superblock pointer */
+       struct task_struct      *vfs_sync_task; /* generalised sync thread */
+       vfs_sync_work_t         vfs_sync_work;  /* work item for VFS_SYNC */
+       struct list_head        vfs_sync_list;  /* sync thread work item list */
+       spinlock_t              vfs_sync_lock;  /* work item list lock */
+       int                     vfs_sync_seq;   /* sync thread generation no. */
        wait_queue_head_t       vfs_wait_single_sync_task;
        wait_queue_head_t       vfs_wait_sync_task;
 } vfs_t;
@@ -205,4 +216,8 @@ extern void bhv_insert_all_vfsops(struct vfs *);
 extern void bhv_remove_all_vfsops(struct vfs *, int);
 extern void bhv_remove_vfsops(struct vfs *, int);
 
+#define fs_frozen(vfsp)                ((vfsp)->vfs_super->s_frozen)
+#define fs_check_frozen(vfsp, level) \
+       vfs_check_frozen(vfsp->vfs_super, level);
+
 #endif /* __XFS_VFS_H__ */