diff options
Diffstat (limited to 'fs/xfs/linux-2.6/xfs_vnode.h')
| -rw-r--r-- | fs/xfs/linux-2.6/xfs_vnode.h | 39 |
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; 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) */ + vflags_t v_flag; /* vnode flags (see above) */ struct vfs *v_vfsp; /* ptr to containing VFS */ vnumber_t v_number; /* in-core vnode number */ vn_bhv_head_t v_bh; /* behavior head */ @@ -126,12 +132,6 @@ static inline struct inode *vn_to_inode(struct vnode *vnode) } /* - * Vnode flags. - */ -#define VMODIFIED 0x8 /* XFS inode state possibly differs */ - /* to the Linux inode state. */ - -/* * Values for the VOP_RWLOCK and VOP_RWUNLOCK flags parameter. */ typedef enum vrwlock { @@ -162,8 +162,10 @@ typedef enum vchange { 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 *); @@ -234,6 +236,7 @@ typedef int (*vop_iflush_t)(bhv_desc_t *, 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; @@ -278,6 +281,10 @@ typedef struct vnodeops { */ #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) \ @@ -290,8 +297,6 @@ typedef struct vnodeops { 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) \ @@ -556,8 +561,6 @@ static inline struct vnode *vn_grab(struct vnode *vp) */ #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) { @@ -566,13 +569,22 @@ 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 */ @@ -612,8 +624,7 @@ static inline void vn_atime_to_time_t(struct vnode *vp, time_t *tt) #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. |