typedef struct dentry vname_t;
typedef bhv_head_t vn_bhv_head_t;
+typedef enum vflags {
+ VMODIFIED = 0x08, /* XFS inode state possibly differs */
+ /* to the Linux inode state. */
+ VTRUNCATED = 0x40, /* truncated down so flush-on-close */
+} vflags_t;
+
/*
* MP locking protocols:
* v_flag, v_vfsp VN_LOCK/VN_UNLOCK
*/
typedef struct vnode {
- __u32 v_flag; /* vnode flags (see below) */
- struct vfs *v_vfsp; /* ptr to containing VFS */
+ vflags_t v_flag; /* vnode flags (see above) */
+ struct bhv_vfs *v_vfsp; /* ptr to containing VFS */
vnumber_t v_number; /* in-core vnode number */
vn_bhv_head_t v_bh; /* behavior head */
spinlock_t v_lock; /* VN_LOCK/VN_UNLOCK */
/*
* Vnode to Linux inode mapping.
*/
-#define LINVFS_GET_VP(inode) ((vnode_t *)list_entry(inode, vnode_t, v_inode))
-#define LINVFS_GET_IP(vp) (&(vp)->v_inode)
-
-/*
- * Vnode flags.
- */
-#define VMODIFIED 0x8 /* XFS inode state possibly differs */
- /* to the Linux inode state. */
+static inline struct vnode *vn_from_inode(struct inode *inode)
+{
+ return (vnode_t *)list_entry(inode, vnode_t, v_inode);
+}
+static inline struct inode *vn_to_inode(struct vnode *vnode)
+{
+ return &vnode->v_inode;
+}
/*
* Values for the VOP_RWLOCK and VOP_RWUNLOCK flags parameter.
VCHANGE_FLAGS_IOEXCL_COUNT = 4
} vchange_t;
+typedef enum { L_FALSE, L_TRUE } lastclose_t;
typedef int (*vop_open_t)(bhv_desc_t *, struct cred *);
+typedef int (*vop_close_t)(bhv_desc_t *, int, lastclose_t, struct cred *);
typedef ssize_t (*vop_read_t)(bhv_desc_t *, struct kiocb *,
const struct iovec *, unsigned int,
loff_t *, int, struct cred *);
typedef ssize_t (*vop_sendfile_t)(bhv_desc_t *, struct file *,
loff_t *, int, size_t, read_actor_t,
void *, struct cred *);
+typedef ssize_t (*vop_splice_read_t)(bhv_desc_t *, struct file *, loff_t *,
+ struct pipe_inode_info *, size_t, int, int,
+ struct cred *);
+typedef ssize_t (*vop_splice_write_t)(bhv_desc_t *, struct pipe_inode_info *,
+ struct file *, loff_t *, size_t, int, int,
+ struct cred *);
typedef int (*vop_ioctl_t)(bhv_desc_t *, struct inode *, struct file *,
int, unsigned int, void __user *);
typedef int (*vop_getattr_t)(bhv_desc_t *, struct vattr *, int,
typedef struct vnodeops {
bhv_position_t vn_position; /* position within behavior chain */
vop_open_t vop_open;
+ vop_close_t vop_close;
vop_read_t vop_read;
vop_write_t vop_write;
vop_sendfile_t vop_sendfile;
+ vop_splice_read_t vop_splice_read;
+ vop_splice_write_t vop_splice_write;
vop_ioctl_t vop_ioctl;
vop_getattr_t vop_getattr;
vop_setattr_t vop_setattr;
*/
#define _VOP_(op, vp) (*((vnodeops_t *)(vp)->v_fops)->op)
+#define VOP_OPEN(vp, cr, rv) \
+ rv = _VOP_(vop_open, vp)((vp)->v_fbhv, cr)
+#define VOP_CLOSE(vp, f, last, cr, rv) \
+ rv = _VOP_(vop_close, vp)((vp)->v_fbhv, f, last, cr)
#define VOP_READ(vp,file,iov,segs,offset,ioflags,cr,rv) \
rv = _VOP_(vop_read, vp)((vp)->v_fbhv,file,iov,segs,offset,ioflags,cr)
#define VOP_WRITE(vp,file,iov,segs,offset,ioflags,cr,rv) \
rv = _VOP_(vop_write, vp)((vp)->v_fbhv,file,iov,segs,offset,ioflags,cr)
#define VOP_SENDFILE(vp,f,off,ioflags,cnt,act,targ,cr,rv) \
rv = _VOP_(vop_sendfile, vp)((vp)->v_fbhv,f,off,ioflags,cnt,act,targ,cr)
+#define VOP_SPLICE_READ(vp,f,o,pipe,cnt,fl,iofl,cr,rv) \
+ rv = _VOP_(vop_splice_read, vp)((vp)->v_fbhv,f,o,pipe,cnt,fl,iofl,cr)
+#define VOP_SPLICE_WRITE(vp,f,o,pipe,cnt,fl,iofl,cr,rv) \
+ rv = _VOP_(vop_splice_write, vp)((vp)->v_fbhv,f,o,pipe,cnt,fl,iofl,cr)
#define VOP_BMAP(vp,of,sz,rw,b,n,rv) \
rv = _VOP_(vop_bmap, vp)((vp)->v_fbhv,of,sz,rw,b,n)
-#define VOP_OPEN(vp, cr, rv) \
- rv = _VOP_(vop_open, vp)((vp)->v_fbhv, cr)
#define VOP_GETATTR(vp, vap, f, cr, rv) \
rv = _VOP_(vop_getattr, vp)((vp)->v_fbhv, vap, f, cr)
#define VOP_SETATTR(vp, vap, f, cr, rv) \
* vnode_map structures _must_ match vn_epoch and vnode structure sizes.
*/
typedef struct vnode_map {
- vfs_t *v_vfsp;
+ bhv_vfs_t *v_vfsp;
vnumber_t v_number; /* in-core vnode number */
xfs_ino_t v_ino; /* inode # */
} vmap_t;
(vmap).v_ino = (vp)->v_inode.i_ino; }
extern int vn_revalidate(struct vnode *);
+extern int __vn_revalidate(struct vnode *, vattr_t *);
extern void vn_revalidate_core(struct vnode *, vattr_t *);
extern void vn_iowait(struct vnode *vp);
extern void vn_iowake(struct vnode *vp);
+extern void vn_ioerror(struct vnode *vp, int error, char *f, int l);
+
static inline int vn_count(struct vnode *vp)
{
- return atomic_read(&LINVFS_GET_IP(vp)->i_count);
+ return atomic_read(&vn_to_inode(vp)->i_count);
}
/*
vn_trace_hold(vp, __FILE__, __LINE__, (inst_t *)__return_address))
#define VN_RELE(vp) \
(vn_trace_rele(vp, __FILE__, __LINE__, (inst_t *)__return_address), \
- iput(LINVFS_GET_IP(vp)))
+ iput(vn_to_inode(vp)))
#else
#define VN_HOLD(vp) ((void)vn_hold(vp))
-#define VN_RELE(vp) (iput(LINVFS_GET_IP(vp)))
+#define VN_RELE(vp) (iput(vn_to_inode(vp)))
#endif
static inline struct vnode *vn_grab(struct vnode *vp)
{
- struct inode *inode = igrab(LINVFS_GET_IP(vp));
- return inode ? LINVFS_GET_VP(inode) : NULL;
+ struct inode *inode = igrab(vn_to_inode(vp));
+ return inode ? vn_from_inode(inode) : NULL;
}
/*
*/
#define VNAME(dentry) ((char *) (dentry)->d_name.name)
#define VNAMELEN(dentry) ((dentry)->d_name.len)
-#define VNAME_TO_VNODE(dentry) (LINVFS_GET_VP((dentry)->d_inode))
+#define VNAME_TO_VNODE(dentry) (vn_from_inode((dentry)->d_inode))
/*
* Vnode spinlock manipulation.
*/
#define VN_LOCK(vp) mutex_spinlock(&(vp)->v_lock)
#define VN_UNLOCK(vp, s) mutex_spinunlock(&(vp)->v_lock, s)
-#define VN_FLAGSET(vp,b) vn_flagset(vp,b)
-#define VN_FLAGCLR(vp,b) vn_flagclr(vp,b)
static __inline__ void vn_flagset(struct vnode *vp, uint flag)
{
spin_unlock(&vp->v_lock);
}
-static __inline__ void vn_flagclr(struct vnode *vp, uint flag)
+static __inline__ uint vn_flagclr(struct vnode *vp, uint flag)
{
+ uint cleared;
+
spin_lock(&vp->v_lock);
+ cleared = (vp->v_flag & flag);
vp->v_flag &= ~flag;
spin_unlock(&vp->v_lock);
+ return cleared;
}
+#define VMODIFY(vp) vn_flagset(vp, VMODIFIED)
+#define VUNMODIFY(vp) vn_flagclr(vp, VMODIFIED)
+#define VTRUNCATE(vp) vn_flagset(vp, VTRUNCATED)
+#define VUNTRUNCATE(vp) vn_flagclr(vp, VTRUNCATED)
+
/*
* Dealing with bad inodes
*/
static inline void vn_mark_bad(struct vnode *vp)
{
- make_bad_inode(LINVFS_GET_IP(vp));
+ make_bad_inode(vn_to_inode(vp));
}
static inline int VN_BAD(struct vnode *vp)
{
- return is_bad_inode(LINVFS_GET_IP(vp));
+ return is_bad_inode(vn_to_inode(vp));
}
/*
/*
* Some useful predicates.
*/
-#define VN_MAPPED(vp) mapping_mapped(LINVFS_GET_IP(vp)->i_mapping)
-#define VN_CACHED(vp) (LINVFS_GET_IP(vp)->i_mapping->nrpages)
-#define VN_DIRTY(vp) mapping_tagged(LINVFS_GET_IP(vp)->i_mapping, \
+#define VN_MAPPED(vp) mapping_mapped(vn_to_inode(vp)->i_mapping)
+#define VN_CACHED(vp) (vn_to_inode(vp)->i_mapping->nrpages)
+#define VN_DIRTY(vp) mapping_tagged(vn_to_inode(vp)->i_mapping, \
PAGECACHE_TAG_DIRTY)
-#define VMODIFY(vp) VN_FLAGSET(vp, VMODIFIED)
-#define VUNMODIFY(vp) VN_FLAGCLR(vp, VMODIFIED)
+#define VN_TRUNC(vp) ((vp)->v_flag & VTRUNCATED)
/*
* Flags to VOP_SETATTR/VOP_GETATTR.
projects / linux-2.6 / blobdiff