/*
- * Copyright (c) 2000-2003 Silicon Graphics, Inc. All Rights Reserved.
+ * Copyright (c) 2000-2005 Silicon Graphics, Inc.
+ * All Rights Reserved.
*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation.
*
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
*
- * Further, this software is distributed without any warranty that it is
- * free of the rightful claim of any third person regarding infringement
- * or the like. Any license provided herein, whether implied or
- * otherwise, applies only to this software file. Patent licenses, if
- * any, provided herein do not apply to combinations of this program with
- * other software, or any other product whatsoever.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
- * Mountain View, CA 94043, or:
- *
- * http://www.sgi.com
- *
- * For further information regarding this notice, see:
- *
- * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Portions Copyright (c) 1989, 1993
* The Regents of the University of California. All rights reserved.
struct xfs_iomap;
struct attrlist_cursor_kern;
-/*
- * Vnode types. VNON means no type.
- */
-enum vtype { VNON, VREG, VDIR, VBLK, VCHR, VLNK, VFIFO, VBAD, VSOCK };
typedef xfs_ino_t vnumber_t;
typedef struct dentry vname_t;
/*
* MP locking protocols:
* v_flag, v_vfsp VN_LOCK/VN_UNLOCK
- * v_type read-only or fs-dependent
*/
typedef struct vnode {
__u32 v_flag; /* vnode flags (see below) */
- enum vtype v_type; /* vnode type */
struct 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 */
+ atomic_t v_iocount; /* outstanding I/O count */
#ifdef XFS_VNODE_TRACE
struct ktrace *v_trace; /* trace header structure */
#endif
/* inode MUST be last */
} vnode_t;
+#define VN_ISLNK(vp) S_ISLNK((vp)->v_inode.i_mode)
+#define VN_ISREG(vp) S_ISREG((vp)->v_inode.i_mode)
+#define VN_ISDIR(vp) S_ISDIR((vp)->v_inode.i_mode)
+#define VN_ISCHR(vp) S_ISCHR((vp)->v_inode.i_mode)
+#define VN_ISBLK(vp) S_ISBLK((vp)->v_inode.i_mode)
+
#define v_fbhv v_bh.bh_first /* first behavior */
#define v_fops v_bh.bh_first->bd_ops /* first behavior ops */
/*
* 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)
-
-/*
- * Convert between vnode types and inode formats (since POSIX.1
- * defines mode word of stat structure in terms of inode formats).
- */
-extern enum vtype iftovt_tab[];
-extern u_short vttoif_tab[];
-#define IFTOVT(mode) (iftovt_tab[((mode) & S_IFMT) >> 12])
-#define VTTOIF(indx) (vttoif_tab[(int)(indx)])
-#define MAKEIMODE(indx, mode) (int)(VTTOIF(indx) | (mode))
-
+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;
+}
/*
* Vnode flags.
*/
-#define VINACT 0x1 /* vnode is being inactivated */
-#define VRECLM 0x2 /* vnode is being reclaimed */
-#define VWAIT 0x4 /* waiting for VINACT/VRECLM to end */
#define VMODIFIED 0x8 /* XFS inode state possibly differs */
/* to the Linux inode state. */
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 int (*vop_bmap_t)(bhv_desc_t *, xfs_off_t, ssize_t, int,
struct xfs_iomap *, int *);
typedef int (*vop_reclaim_t)(bhv_desc_t *);
-typedef int (*vop_attr_get_t)(bhv_desc_t *, char *, char *, int *, int,
- struct cred *);
-typedef int (*vop_attr_set_t)(bhv_desc_t *, char *, char *, int, int,
- struct cred *);
-typedef int (*vop_attr_remove_t)(bhv_desc_t *, char *, int, struct cred *);
+typedef int (*vop_attr_get_t)(bhv_desc_t *, const char *, char *, int *,
+ int, struct cred *);
+typedef int (*vop_attr_set_t)(bhv_desc_t *, const char *, char *, int,
+ int, struct cred *);
+typedef int (*vop_attr_remove_t)(bhv_desc_t *, const char *,
+ int, struct cred *);
typedef int (*vop_attr_list_t)(bhv_desc_t *, char *, int, int,
struct attrlist_cursor_kern *, struct cred *);
typedef void (*vop_link_removed_t)(bhv_desc_t *, vnode_t *, int);
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;
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) \
*/
typedef struct vattr {
int va_mask; /* bit-mask of attributes present */
- enum vtype va_type; /* vnode type (for create) */
mode_t va_mode; /* file access mode and type */
xfs_nlink_t va_nlink; /* number of references to file */
uid_t va_uid; /* owner user id */
u_long va_extsize; /* file extent size */
u_long va_nextents; /* number of extents in file */
u_long va_anextents; /* number of attr extents in file */
- int va_projid; /* project id */
+ prid_t va_projid; /* project id */
} vattr_t;
/*
* Check whether mandatory file locking is enabled.
*/
#define MANDLOCK(vp, mode) \
- ((vp)->v_type == VREG && ((mode) & (VSGID|(VEXEC>>3))) == VSGID)
+ (VN_ISREG(vp) && ((mode) & (VSGID|(VEXEC>>3))) == VSGID)
extern void vn_init(void);
-extern int vn_wait(struct vnode *);
extern vnode_t *vn_initialize(struct inode *);
-/*
- * Acquiring and invalidating vnodes:
- *
- * if (vn_get(vp, version, 0))
- * ...;
- * vn_purge(vp, version);
- *
- * vn_get and vn_purge must be called with vmap_t arguments, sampled
- * while a lock that the vnode's VOP_RECLAIM function acquires is
- * held, to ensure that the vnode sampled with the lock held isn't
- * recycled (VOP_RECLAIMed) or deallocated between the release of the lock
- * and the subsequent vn_get or vn_purge.
- */
-
/*
* vnode_map structures _must_ match vn_epoch and vnode structure sizes.
*/
(vmap).v_number = (vp)->v_number, \
(vmap).v_ino = (vp)->v_inode.i_ino; }
-extern void vn_purge(struct vnode *, vmap_t *);
-extern vnode_t *vn_get(struct vnode *, vmap_t *);
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_remove(struct vnode *);
+
+extern void vn_iowait(struct vnode *vp);
+extern void vn_iowake(struct vnode *vp);
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);
}
/*
* Vnode reference counting functions (and macros for compatibility).
*/
extern vnode_t *vn_hold(struct vnode *);
-extern void vn_rele(struct vnode *);
#if defined(XFS_VNODE_TRACE)
#define VN_HOLD(vp) \
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(vn_to_inode(vp));
+ return inode ? vn_from_inode(inode) : NULL;
+}
+
/*
* Vname handling macros.
*/
#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.
spin_unlock(&vp->v_lock);
}
-/*
- * Update modify/access/change times on the vnode
- */
-#define VN_MTIMESET(vp, tvp) (LINVFS_GET_IP(vp)->i_mtime = *(tvp))
-#define VN_ATIMESET(vp, tvp) (LINVFS_GET_IP(vp)->i_atime = *(tvp))
-#define VN_CTIMESET(vp, tvp) (LINVFS_GET_IP(vp)->i_ctime = *(tvp))
-
/*
* 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));
+}
+
+/*
+ * Extracting atime values in various formats
+ */
+static inline void vn_atime_to_bstime(struct vnode *vp, xfs_bstime_t *bs_atime)
+{
+ bs_atime->tv_sec = vp->v_inode.i_atime.tv_sec;
+ bs_atime->tv_nsec = vp->v_inode.i_atime.tv_nsec;
+}
+
+static inline void vn_atime_to_timespec(struct vnode *vp, struct timespec *ts)
+{
+ *ts = vp->v_inode.i_atime;
+}
+
+static inline void vn_atime_to_time_t(struct vnode *vp, time_t *tt)
+{
+ *tt = vp->v_inode.i_atime.tv_sec;
}
/*
* 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 ATTR_LAZY 0x80 /* set/get attributes lazily */
#define ATTR_NONBLOCK 0x100 /* return EAGAIN if operation would block */
#define ATTR_NOLOCK 0x200 /* Don't grab any conflicting locks */
+#define ATTR_NOSIZETOK 0x400 /* Don't get the SIZE token */
/*
* Flags to VOP_FSYNC and VOP_RECLAIM.
git://git.onelab.eu / linux-2.6.git / blobdiff