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Diffstat (limited to 'fs/xfs/linux-2.6/xfs_vnode.h')
-rw-r--r--fs/xfs/linux-2.6/xfs_vnode.h39
1 files changed, 25 insertions, 14 deletions
diff --git a/fs/xfs/linux-2.6/xfs_vnode.h b/fs/xfs/linux-2.6/xfs_vnode.h
index a64b7db67003..569a4e7b5cc1 100644
--- a/fs/xfs/linux-2.6/xfs_vnode.h
+++ b/fs/xfs/linux-2.6/xfs_vnode.h
@@ -56,12 +56,18 @@ typedef xfs_ino_t vnumber_t;
56typedef struct dentry vname_t; 56typedef struct dentry vname_t;
57typedef bhv_head_t vn_bhv_head_t; 57typedef bhv_head_t vn_bhv_head_t;
58 58
59typedef enum vflags {
60 VMODIFIED = 0x08, /* XFS inode state possibly differs */
61 /* to the Linux inode state. */
62 VTRUNCATED = 0x40, /* truncated down so flush-on-close */
63} vflags_t;
64
59/* 65/*
60 * MP locking protocols: 66 * MP locking protocols:
61 * v_flag, v_vfsp VN_LOCK/VN_UNLOCK 67 * v_flag, v_vfsp VN_LOCK/VN_UNLOCK
62 */ 68 */
63typedef struct vnode { 69typedef struct vnode {
64 __u32 v_flag; /* vnode flags (see below) */ 70 vflags_t v_flag; /* vnode flags (see above) */
65 struct vfs *v_vfsp; /* ptr to containing VFS */ 71 struct vfs *v_vfsp; /* ptr to containing VFS */
66 vnumber_t v_number; /* in-core vnode number */ 72 vnumber_t v_number; /* in-core vnode number */
67 vn_bhv_head_t v_bh; /* behavior head */ 73 vn_bhv_head_t v_bh; /* behavior head */
@@ -126,12 +132,6 @@ static inline struct inode *vn_to_inode(struct vnode *vnode)
126} 132}
127 133
128/* 134/*
129 * Vnode flags.
130 */
131#define VMODIFIED 0x8 /* XFS inode state possibly differs */
132 /* to the Linux inode state. */
133
134/*
135 * Values for the VOP_RWLOCK and VOP_RWUNLOCK flags parameter. 135 * Values for the VOP_RWLOCK and VOP_RWUNLOCK flags parameter.
136 */ 136 */
137typedef enum vrwlock { 137typedef enum vrwlock {
@@ -162,8 +162,10 @@ typedef enum vchange {
162 VCHANGE_FLAGS_IOEXCL_COUNT = 4 162 VCHANGE_FLAGS_IOEXCL_COUNT = 4
163} vchange_t; 163} vchange_t;
164 164
165typedef enum { L_FALSE, L_TRUE } lastclose_t;
165 166
166typedef int (*vop_open_t)(bhv_desc_t *, struct cred *); 167typedef int (*vop_open_t)(bhv_desc_t *, struct cred *);
168typedef int (*vop_close_t)(bhv_desc_t *, int, lastclose_t, struct cred *);
167typedef ssize_t (*vop_read_t)(bhv_desc_t *, struct kiocb *, 169typedef ssize_t (*vop_read_t)(bhv_desc_t *, struct kiocb *,
168 const struct iovec *, unsigned int, 170 const struct iovec *, unsigned int,
169 loff_t *, int, struct cred *); 171 loff_t *, int, struct cred *);
@@ -234,6 +236,7 @@ typedef int (*vop_iflush_t)(bhv_desc_t *, int);
234typedef struct vnodeops { 236typedef struct vnodeops {
235 bhv_position_t vn_position; /* position within behavior chain */ 237 bhv_position_t vn_position; /* position within behavior chain */
236 vop_open_t vop_open; 238 vop_open_t vop_open;
239 vop_close_t vop_close;
237 vop_read_t vop_read; 240 vop_read_t vop_read;
238 vop_write_t vop_write; 241 vop_write_t vop_write;
239 vop_sendfile_t vop_sendfile; 242 vop_sendfile_t vop_sendfile;
@@ -278,6 +281,10 @@ typedef struct vnodeops {
278 */ 281 */
279#define _VOP_(op, vp) (*((vnodeops_t *)(vp)->v_fops)->op) 282#define _VOP_(op, vp) (*((vnodeops_t *)(vp)->v_fops)->op)
280 283
284#define VOP_OPEN(vp, cr, rv) \
285 rv = _VOP_(vop_open, vp)((vp)->v_fbhv, cr)
286#define VOP_CLOSE(vp, f, last, cr, rv) \
287 rv = _VOP_(vop_close, vp)((vp)->v_fbhv, f, last, cr)
281#define VOP_READ(vp,file,iov,segs,offset,ioflags,cr,rv) \ 288#define VOP_READ(vp,file,iov,segs,offset,ioflags,cr,rv) \
282 rv = _VOP_(vop_read, vp)((vp)->v_fbhv,file,iov,segs,offset,ioflags,cr) 289 rv = _VOP_(vop_read, vp)((vp)->v_fbhv,file,iov,segs,offset,ioflags,cr)
283#define VOP_WRITE(vp,file,iov,segs,offset,ioflags,cr,rv) \ 290#define VOP_WRITE(vp,file,iov,segs,offset,ioflags,cr,rv) \
@@ -290,8 +297,6 @@ typedef struct vnodeops {
290 rv = _VOP_(vop_splice_write, vp)((vp)->v_fbhv,f,o,pipe,cnt,fl,iofl,cr) 297 rv = _VOP_(vop_splice_write, vp)((vp)->v_fbhv,f,o,pipe,cnt,fl,iofl,cr)
291#define VOP_BMAP(vp,of,sz,rw,b,n,rv) \ 298#define VOP_BMAP(vp,of,sz,rw,b,n,rv) \
292 rv = _VOP_(vop_bmap, vp)((vp)->v_fbhv,of,sz,rw,b,n) 299 rv = _VOP_(vop_bmap, vp)((vp)->v_fbhv,of,sz,rw,b,n)
293#define VOP_OPEN(vp, cr, rv) \
294 rv = _VOP_(vop_open, vp)((vp)->v_fbhv, cr)
295#define VOP_GETATTR(vp, vap, f, cr, rv) \ 300#define VOP_GETATTR(vp, vap, f, cr, rv) \
296 rv = _VOP_(vop_getattr, vp)((vp)->v_fbhv, vap, f, cr) 301 rv = _VOP_(vop_getattr, vp)((vp)->v_fbhv, vap, f, cr)
297#define VOP_SETATTR(vp, vap, f, cr, rv) \ 302#define VOP_SETATTR(vp, vap, f, cr, rv) \
@@ -556,8 +561,6 @@ static inline struct vnode *vn_grab(struct vnode *vp)
556 */ 561 */
557#define VN_LOCK(vp) mutex_spinlock(&(vp)->v_lock) 562#define VN_LOCK(vp) mutex_spinlock(&(vp)->v_lock)
558#define VN_UNLOCK(vp, s) mutex_spinunlock(&(vp)->v_lock, s) 563#define VN_UNLOCK(vp, s) mutex_spinunlock(&(vp)->v_lock, s)
559#define VN_FLAGSET(vp,b) vn_flagset(vp,b)
560#define VN_FLAGCLR(vp,b) vn_flagclr(vp,b)
561 564
562static __inline__ void vn_flagset(struct vnode *vp, uint flag) 565static __inline__ void vn_flagset(struct vnode *vp, uint flag)
563{ 566{
@@ -566,13 +569,22 @@ static __inline__ void vn_flagset(struct vnode *vp, uint flag)
566 spin_unlock(&vp->v_lock); 569 spin_unlock(&vp->v_lock);
567} 570}
568 571
569static __inline__ void vn_flagclr(struct vnode *vp, uint flag) 572static __inline__ uint vn_flagclr(struct vnode *vp, uint flag)
570{ 573{
574 uint cleared;
575
571 spin_lock(&vp->v_lock); 576 spin_lock(&vp->v_lock);
577 cleared = (vp->v_flag & flag);
572 vp->v_flag &= ~flag; 578 vp->v_flag &= ~flag;
573 spin_unlock(&vp->v_lock); 579 spin_unlock(&vp->v_lock);
580 return cleared;
574} 581}
575 582
583#define VMODIFY(vp) vn_flagset(vp, VMODIFIED)
584#define VUNMODIFY(vp) vn_flagclr(vp, VMODIFIED)
585#define VTRUNCATE(vp) vn_flagset(vp, VTRUNCATED)
586#define VUNTRUNCATE(vp) vn_flagclr(vp, VTRUNCATED)
587
576/* 588/*
577 * Dealing with bad inodes 589 * Dealing with bad inodes
578 */ 590 */
@@ -612,8 +624,7 @@ static inline void vn_atime_to_time_t(struct vnode *vp, time_t *tt)
612#define VN_CACHED(vp) (vn_to_inode(vp)->i_mapping->nrpages) 624#define VN_CACHED(vp) (vn_to_inode(vp)->i_mapping->nrpages)
613#define VN_DIRTY(vp) mapping_tagged(vn_to_inode(vp)->i_mapping, \ 625#define VN_DIRTY(vp) mapping_tagged(vn_to_inode(vp)->i_mapping, \
614 PAGECACHE_TAG_DIRTY) 626 PAGECACHE_TAG_DIRTY)
615#define VMODIFY(vp) VN_FLAGSET(vp, VMODIFIED) 627#define VN_TRUNC(vp) ((vp)->v_flag & VTRUNCATED)
616#define VUNMODIFY(vp) VN_FLAGCLR(vp, VMODIFIED)
617 628
618/* 629/*
619 * Flags to VOP_SETATTR/VOP_GETATTR. 630 * Flags to VOP_SETATTR/VOP_GETATTR.