X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=fs%2Fxfs%2Flinux-2.6%2Fxfs_vnode.h;h=95343637ab6622d1d0dc84bc071c1c9ff3e518ea;hb=b83bd1388133e914c38bd31d69bc90143e6ab10c;hp=06f5845e9568eeeaf00be12a185c18f26a40db00;hpb=55d8ca4f8094246da6e71889a4e04bfafaa78b10;p=linux-2.6 diff --git a/fs/xfs/linux-2.6/xfs_vnode.h b/fs/xfs/linux-2.6/xfs_vnode.h index 06f5845e95..95343637ab 100644 --- a/fs/xfs/linux-2.6/xfs_vnode.h +++ b/fs/xfs/linux-2.6/xfs_vnode.h @@ -56,13 +56,19 @@ 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) */ - 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 */ @@ -125,12 +131,6 @@ static inline struct inode *vn_to_inode(struct vnode *vnode) return &vnode->v_inode; } -/* - * 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. */ @@ -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 *); @@ -173,6 +175,12 @@ typedef ssize_t (*vop_write_t)(bhv_desc_t *, struct kiocb *, 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, @@ -228,9 +236,12 @@ 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; + 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; @@ -270,16 +281,22 @@ 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) \ 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) \ @@ -486,7 +503,7 @@ extern vnode_t *vn_initialize(struct inode *); * 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; @@ -502,6 +519,8 @@ 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(&vn_to_inode(vp)->i_count); @@ -542,8 +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) { @@ -552,13 +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 */ @@ -598,8 +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.