/*
- * Copyright (c) 2000-2004 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
*/
-
#include "xfs.h"
#include "xfs_fs.h"
-#include "xfs_inum.h"
+#include "xfs_bit.h"
#include "xfs_log.h"
+#include "xfs_inum.h"
#include "xfs_trans.h"
#include "xfs_sb.h"
#include "xfs_ag.h"
#include "xfs_dmapi.h"
#include "xfs_quota.h"
#include "xfs_mount.h"
-#include "xfs_alloc_btree.h"
#include "xfs_bmap_btree.h"
+#include "xfs_alloc_btree.h"
#include "xfs_ialloc_btree.h"
-#include "xfs_btree.h"
-#include "xfs_ialloc.h"
-#include "xfs_attr_sf.h"
#include "xfs_dir_sf.h"
#include "xfs_dir2_sf.h"
+#include "xfs_attr_sf.h"
#include "xfs_dinode.h"
#include "xfs_inode.h"
#include "xfs_bmap.h"
-#include "xfs_bit.h"
+#include "xfs_btree.h"
+#include "xfs_ialloc.h"
#include "xfs_rtalloc.h"
#include "xfs_error.h"
#include "xfs_itable.h"
#include "xfs_buf_item.h"
#include "xfs_utils.h"
+#include <linux/capability.h>
#include <linux/xattr.h>
#include <linux/namei.h>
+#include <linux/security.h>
+#include <linux/vserver/xid.h>
+
+/*
+ * Get a XFS inode from a given vnode.
+ */
+xfs_inode_t *
+xfs_vtoi(
+ struct vnode *vp)
+{
+ bhv_desc_t *bdp;
+
+ bdp = bhv_lookup_range(VN_BHV_HEAD(vp),
+ VNODE_POSITION_XFS, VNODE_POSITION_XFS);
+ if (unlikely(bdp == NULL))
+ return NULL;
+ return XFS_BHVTOI(bdp);
+}
+
+/*
+ * Bring the atime in the XFS inode uptodate.
+ * Used before logging the inode to disk or when the Linux inode goes away.
+ */
+void
+xfs_synchronize_atime(
+ xfs_inode_t *ip)
+{
+ vnode_t *vp;
+
+ vp = XFS_ITOV_NULL(ip);
+ if (vp) {
+ struct inode *inode = &vp->v_inode;
+ ip->i_d.di_atime.t_sec = (__int32_t)inode->i_atime.tv_sec;
+ ip->i_d.di_atime.t_nsec = (__int32_t)inode->i_atime.tv_nsec;
+ }
+}
+
+/*
+ * Change the requested timestamp in the given inode.
+ * We don't lock across timestamp updates, and we don't log them but
+ * we do record the fact that there is dirty information in core.
+ *
+ * NOTE -- callers MUST combine XFS_ICHGTIME_MOD or XFS_ICHGTIME_CHG
+ * with XFS_ICHGTIME_ACC to be sure that access time
+ * update will take. Calling first with XFS_ICHGTIME_ACC
+ * and then XFS_ICHGTIME_MOD may fail to modify the access
+ * timestamp if the filesystem is mounted noacctm.
+ */
+void
+xfs_ichgtime(
+ xfs_inode_t *ip,
+ int flags)
+{
+ struct inode *inode = vn_to_inode(XFS_ITOV(ip));
+ timespec_t tv;
+
+ nanotime(&tv);
+ if (flags & XFS_ICHGTIME_MOD) {
+ inode->i_mtime = tv;
+ ip->i_d.di_mtime.t_sec = (__int32_t)tv.tv_sec;
+ ip->i_d.di_mtime.t_nsec = (__int32_t)tv.tv_nsec;
+ }
+ if (flags & XFS_ICHGTIME_ACC) {
+ inode->i_atime = tv;
+ ip->i_d.di_atime.t_sec = (__int32_t)tv.tv_sec;
+ ip->i_d.di_atime.t_nsec = (__int32_t)tv.tv_nsec;
+ }
+ if (flags & XFS_ICHGTIME_CHG) {
+ inode->i_ctime = tv;
+ ip->i_d.di_ctime.t_sec = (__int32_t)tv.tv_sec;
+ ip->i_d.di_ctime.t_nsec = (__int32_t)tv.tv_nsec;
+ }
+
+ /*
+ * We update the i_update_core field _after_ changing
+ * the timestamps in order to coordinate properly with
+ * xfs_iflush() so that we don't lose timestamp updates.
+ * This keeps us from having to hold the inode lock
+ * while doing this. We use the SYNCHRONIZE macro to
+ * ensure that the compiler does not reorder the update
+ * of i_update_core above the timestamp updates above.
+ */
+ SYNCHRONIZE();
+ ip->i_update_core = 1;
+ if (!(inode->i_state & I_LOCK))
+ mark_inode_dirty_sync(inode);
+}
+
+/*
+ * Variant on the above which avoids querying the system clock
+ * in situations where we know the Linux inode timestamps have
+ * just been updated (and so we can update our inode cheaply).
+ */
+void
+xfs_ichgtime_fast(
+ xfs_inode_t *ip,
+ struct inode *inode,
+ int flags)
+{
+ timespec_t *tvp;
+
+ /*
+ * Atime updates for read() & friends are handled lazily now, and
+ * explicit updates must go through xfs_ichgtime()
+ */
+ ASSERT((flags & XFS_ICHGTIME_ACC) == 0);
+
+ /*
+ * We're not supposed to change timestamps in readonly-mounted
+ * filesystems. Throw it away if anyone asks us.
+ */
+ if (unlikely(IS_RDONLY(inode)))
+ return;
+
+ if (flags & XFS_ICHGTIME_MOD) {
+ tvp = &inode->i_mtime;
+ ip->i_d.di_mtime.t_sec = (__int32_t)tvp->tv_sec;
+ ip->i_d.di_mtime.t_nsec = (__int32_t)tvp->tv_nsec;
+ }
+ if (flags & XFS_ICHGTIME_CHG) {
+ tvp = &inode->i_ctime;
+ ip->i_d.di_ctime.t_sec = (__int32_t)tvp->tv_sec;
+ ip->i_d.di_ctime.t_nsec = (__int32_t)tvp->tv_nsec;
+ }
+
+ /*
+ * We update the i_update_core field _after_ changing
+ * the timestamps in order to coordinate properly with
+ * xfs_iflush() so that we don't lose timestamp updates.
+ * This keeps us from having to hold the inode lock
+ * while doing this. We use the SYNCHRONIZE macro to
+ * ensure that the compiler does not reorder the update
+ * of i_update_core above the timestamp updates above.
+ */
+ SYNCHRONIZE();
+ ip->i_update_core = 1;
+ if (!(inode->i_state & I_LOCK))
+ mark_inode_dirty_sync(inode);
+}
/*
* Pull the link count and size up from the xfs inode to the linux inode
*/
STATIC void
-validate_fields(
- struct inode *ip)
+xfs_validate_fields(
+ struct inode *ip,
+ struct vattr *vattr)
{
- vnode_t *vp = LINVFS_GET_VP(ip);
- vattr_t va;
+ vnode_t *vp = vn_from_inode(ip);
int error;
- va.va_mask = XFS_AT_NLINK|XFS_AT_SIZE|XFS_AT_NBLOCKS;
- VOP_GETATTR(vp, &va, ATTR_LAZY, NULL, error);
- if (likely(!error)) {
- ip->i_nlink = va.va_nlink;
- ip->i_blocks = va.va_nblocks;
+ vattr->va_mask = XFS_AT_NLINK|XFS_AT_SIZE|XFS_AT_NBLOCKS;
+ VOP_GETATTR(vp, vattr, ATTR_LAZY, NULL, error);
+ if (likely(!error)) {
+ ip->i_nlink = vattr->va_nlink;
+ ip->i_blocks = vattr->va_nblocks;
/* we're under i_sem so i_size can't change under us */
- if (i_size_read(ip) != va.va_size)
- i_size_write(ip, va.va_size);
+ if (i_size_read(ip) != vattr->va_size)
+ i_size_write(ip, vattr->va_size);
+ }
+}
+
+/*
+ * Hook in SELinux. This is not quite correct yet, what we really need
+ * here (as we do for default ACLs) is a mechanism by which creation of
+ * these attrs can be journalled at inode creation time (along with the
+ * inode, of course, such that log replay can't cause these to be lost).
+ */
+STATIC int
+xfs_init_security(
+ struct vnode *vp,
+ struct inode *dir)
+{
+ struct inode *ip = vn_to_inode(vp);
+ size_t length;
+ void *value;
+ char *name;
+ int error;
+
+ error = security_inode_init_security(ip, dir, &name, &value, &length);
+ if (error) {
+ if (error == -EOPNOTSUPP)
+ return 0;
+ return -error;
}
+
+ VOP_ATTR_SET(vp, name, value, length, ATTR_SECURE, NULL, error);
+ if (!error)
+ VMODIFY(vp);
+
+ kfree(name);
+ kfree(value);
+ return error;
}
/*
* XXX(hch): nfsd is broken, better fix it instead.
*/
STATIC inline int
-has_fs_struct(struct task_struct *task)
+xfs_has_fs_struct(struct task_struct *task)
{
return (task->fs != init_task.fs);
}
+STATIC inline void
+xfs_cleanup_inode(
+ vnode_t *dvp,
+ vnode_t *vp,
+ struct dentry *dentry,
+ int mode)
+{
+ struct dentry teardown = {};
+ int error;
+
+ /* Oh, the horror.
+ * If we can't add the ACL or we fail in
+ * xfs_init_security we must back out.
+ * ENOSPC can hit here, among other things.
+ */
+ teardown.d_inode = vn_to_inode(vp);
+ teardown.d_name = dentry->d_name;
+
+ if (S_ISDIR(mode))
+ VOP_RMDIR(dvp, &teardown, NULL, error);
+ else
+ VOP_REMOVE(dvp, &teardown, NULL, error);
+ VN_RELE(vp);
+}
+
STATIC int
-linvfs_mknod(
+xfs_vn_mknod(
struct inode *dir,
struct dentry *dentry,
int mode,
dev_t rdev)
{
struct inode *ip;
- vattr_t va;
- vnode_t *vp = NULL, *dvp = LINVFS_GET_VP(dir);
+ vattr_t vattr = { 0 };
+ vnode_t *vp = NULL, *dvp = vn_from_inode(dir);
xfs_acl_t *default_acl = NULL;
attrexists_t test_default_acl = _ACL_DEFAULT_EXISTS;
int error;
* Irix uses Missed'em'V split, but doesn't want to see
* the upper 5 bits of (14bit) major.
*/
- if (!sysv_valid_dev(rdev) || MAJOR(rdev) & ~0x1ff)
+ if (unlikely(!sysv_valid_dev(rdev) || MAJOR(rdev) & ~0x1ff))
return -EINVAL;
- if (test_default_acl && test_default_acl(dvp)) {
- if (!_ACL_ALLOC(default_acl))
+ if (unlikely(test_default_acl && test_default_acl(dvp))) {
+ if (!_ACL_ALLOC(default_acl)) {
return -ENOMEM;
+ }
if (!_ACL_GET_DEFAULT(dvp, default_acl)) {
_ACL_FREE(default_acl);
default_acl = NULL;
}
}
- if (IS_POSIXACL(dir) && !default_acl && has_fs_struct(current))
+ if (IS_POSIXACL(dir) && !default_acl && xfs_has_fs_struct(current))
mode &= ~current->fs->umask;
- memset(&va, 0, sizeof(va));
- va.va_mask = XFS_AT_TYPE|XFS_AT_MODE;
- va.va_type = IFTOVT(mode);
- va.va_mode = mode;
+ vattr.va_mask = XFS_AT_TYPE|XFS_AT_MODE;
+ vattr.va_mode = mode;
switch (mode & S_IFMT) {
case S_IFCHR: case S_IFBLK: case S_IFIFO: case S_IFSOCK:
- va.va_rdev = sysv_encode_dev(rdev);
- va.va_mask |= XFS_AT_RDEV;
+ vattr.va_rdev = sysv_encode_dev(rdev);
+ vattr.va_mask |= XFS_AT_RDEV;
/*FALLTHROUGH*/
case S_IFREG:
- VOP_CREATE(dvp, dentry, &va, &vp, NULL, error);
+ VOP_CREATE(dvp, dentry, &vattr, &vp, NULL, error);
break;
case S_IFDIR:
- VOP_MKDIR(dvp, dentry, &va, &vp, NULL, error);
+ VOP_MKDIR(dvp, dentry, &vattr, &vp, NULL, error);
break;
default:
error = EINVAL;
break;
}
- if (default_acl) {
+ if (unlikely(!error)) {
+ error = xfs_init_security(vp, dir);
+ if (error)
+ xfs_cleanup_inode(dvp, vp, dentry, mode);
+ }
+
+ if (unlikely(default_acl)) {
if (!error) {
- error = _ACL_INHERIT(vp, &va, default_acl);
- if (!error) {
+ error = _ACL_INHERIT(vp, &vattr, default_acl);
+ if (!error)
VMODIFY(vp);
- } else {
- struct dentry teardown = {};
- int err2;
-
- /* Oh, the horror.
- * If we can't add the ACL we must back out.
- * ENOSPC can hit here, among other things.
- */
- teardown.d_inode = ip = LINVFS_GET_IP(vp);
- teardown.d_name = dentry->d_name;
-
- vn_mark_bad(vp);
-
- if (S_ISDIR(mode))
- VOP_RMDIR(dvp, &teardown, NULL, err2);
- else
- VOP_REMOVE(dvp, &teardown, NULL, err2);
- VN_RELE(vp);
- }
+ else
+ xfs_cleanup_inode(dvp, vp, dentry, mode);
}
_ACL_FREE(default_acl);
}
- if (!error) {
+ if (likely(!error)) {
ASSERT(vp);
- ip = LINVFS_GET_IP(vp);
+ ip = vn_to_inode(vp);
if (S_ISCHR(mode) || S_ISBLK(mode))
ip->i_rdev = rdev;
else if (S_ISDIR(mode))
- validate_fields(ip);
+ xfs_validate_fields(ip, &vattr);
d_instantiate(dentry, ip);
- validate_fields(dir);
+ xfs_validate_fields(dir, &vattr);
}
return -error;
}
STATIC int
-linvfs_create(
+xfs_vn_create(
struct inode *dir,
struct dentry *dentry,
int mode,
struct nameidata *nd)
{
- return linvfs_mknod(dir, dentry, mode, 0);
+ return xfs_vn_mknod(dir, dentry, mode, 0);
}
STATIC int
-linvfs_mkdir(
+xfs_vn_mkdir(
struct inode *dir,
struct dentry *dentry,
int mode)
{
- return linvfs_mknod(dir, dentry, mode|S_IFDIR, 0);
+ return xfs_vn_mknod(dir, dentry, mode|S_IFDIR, 0);
}
STATIC struct dentry *
-linvfs_lookup(
+xfs_vn_lookup(
struct inode *dir,
struct dentry *dentry,
struct nameidata *nd)
{
- struct vnode *vp = LINVFS_GET_VP(dir), *cvp;
+ struct vnode *vp = vn_from_inode(dir), *cvp;
int error;
if (dentry->d_name.len >= MAXNAMELEN)
d_add(dentry, NULL);
return NULL;
}
+ vx_propagate_xid(nd, vn_to_inode(cvp));
- return d_splice_alias(LINVFS_GET_IP(cvp), dentry);
+ return d_splice_alias(vn_to_inode(cvp), dentry);
}
STATIC int
-linvfs_link(
+xfs_vn_link(
struct dentry *old_dentry,
struct inode *dir,
struct dentry *dentry)
struct inode *ip; /* inode of guy being linked to */
vnode_t *tdvp; /* target directory for new name/link */
vnode_t *vp; /* vp of name being linked */
+ vattr_t vattr;
int error;
ip = old_dentry->d_inode; /* inode being linked to */
if (S_ISDIR(ip->i_mode))
return -EPERM;
- tdvp = LINVFS_GET_VP(dir);
- vp = LINVFS_GET_VP(ip);
+ tdvp = vn_from_inode(dir);
+ vp = vn_from_inode(ip);
VOP_LINK(tdvp, vp, dentry, NULL, error);
- if (!error) {
+ if (likely(!error)) {
VMODIFY(tdvp);
VN_HOLD(vp);
- validate_fields(ip);
+ xfs_validate_fields(ip, &vattr);
d_instantiate(dentry, ip);
}
return -error;
}
STATIC int
-linvfs_unlink(
+xfs_vn_unlink(
struct inode *dir,
struct dentry *dentry)
{
struct inode *inode;
vnode_t *dvp; /* directory containing name to remove */
+ vattr_t vattr;
int error;
inode = dentry->d_inode;
- dvp = LINVFS_GET_VP(dir);
+ dvp = vn_from_inode(dir);
VOP_REMOVE(dvp, dentry, NULL, error);
- if (!error) {
- validate_fields(dir); /* For size only */
- validate_fields(inode);
+ if (likely(!error)) {
+ xfs_validate_fields(dir, &vattr); /* size needs update */
+ xfs_validate_fields(inode, &vattr);
}
-
return -error;
}
STATIC int
-linvfs_symlink(
+xfs_vn_symlink(
struct inode *dir,
struct dentry *dentry,
const char *symname)
{
struct inode *ip;
- vattr_t va;
+ vattr_t vattr = { 0 };
vnode_t *dvp; /* directory containing name of symlink */
vnode_t *cvp; /* used to lookup symlink to put in dentry */
int error;
- dvp = LINVFS_GET_VP(dir);
+ dvp = vn_from_inode(dir);
cvp = NULL;
- memset(&va, 0, sizeof(va));
- va.va_type = VLNK;
- va.va_mode = irix_symlink_mode ? 0777 & ~current->fs->umask : S_IRWXUGO;
- va.va_mask = XFS_AT_TYPE|XFS_AT_MODE;
+ vattr.va_mode = S_IFLNK |
+ (irix_symlink_mode ? 0777 & ~current->fs->umask : S_IRWXUGO);
+ vattr.va_mask = XFS_AT_TYPE|XFS_AT_MODE;
error = 0;
- VOP_SYMLINK(dvp, dentry, &va, (char *)symname, &cvp, NULL, error);
- if (!error && cvp) {
- ASSERT(cvp->v_type == VLNK);
- ip = LINVFS_GET_IP(cvp);
- d_instantiate(dentry, ip);
- validate_fields(dir);
- validate_fields(ip); /* size needs update */
+ VOP_SYMLINK(dvp, dentry, &vattr, (char *)symname, &cvp, NULL, error);
+ if (likely(!error && cvp)) {
+ error = xfs_init_security(cvp, dir);
+ if (likely(!error)) {
+ ip = vn_to_inode(cvp);
+ d_instantiate(dentry, ip);
+ xfs_validate_fields(dir, &vattr);
+ xfs_validate_fields(ip, &vattr);
+ } else {
+ xfs_cleanup_inode(dvp, cvp, dentry, 0);
+ }
}
return -error;
}
STATIC int
-linvfs_rmdir(
+xfs_vn_rmdir(
struct inode *dir,
struct dentry *dentry)
{
struct inode *inode = dentry->d_inode;
- vnode_t *dvp = LINVFS_GET_VP(dir);
+ vnode_t *dvp = vn_from_inode(dir);
+ vattr_t vattr;
int error;
VOP_RMDIR(dvp, dentry, NULL, error);
- if (!error) {
- validate_fields(inode);
- validate_fields(dir);
+ if (likely(!error)) {
+ xfs_validate_fields(inode, &vattr);
+ xfs_validate_fields(dir, &vattr);
}
return -error;
}
STATIC int
-linvfs_rename(
+xfs_vn_rename(
struct inode *odir,
struct dentry *odentry,
struct inode *ndir,
struct inode *new_inode = ndentry->d_inode;
vnode_t *fvp; /* from directory */
vnode_t *tvp; /* target directory */
+ vattr_t vattr;
int error;
- fvp = LINVFS_GET_VP(odir);
- tvp = LINVFS_GET_VP(ndir);
+ fvp = vn_from_inode(odir);
+ tvp = vn_from_inode(ndir);
VOP_RENAME(fvp, odentry, tvp, ndentry, NULL, error);
- if (error)
- return -error;
-
- if (new_inode)
- validate_fields(new_inode);
-
- validate_fields(odir);
- if (ndir != odir)
- validate_fields(ndir);
- return 0;
+ if (likely(!error)) {
+ if (new_inode)
+ xfs_validate_fields(new_inode, &vattr);
+ xfs_validate_fields(odir, &vattr);
+ if (ndir != odir)
+ xfs_validate_fields(ndir, &vattr);
+ }
+ return -error;
}
/*
* we need to be very careful about how much stack we use.
* uio is kmalloced for this reason...
*/
-STATIC int
-linvfs_follow_link(
+STATIC void *
+xfs_vn_follow_link(
struct dentry *dentry,
struct nameidata *nd)
{
ASSERT(dentry);
ASSERT(nd);
- link = (char *)kmalloc(MAXNAMELEN+1, GFP_KERNEL);
+ link = (char *)kmalloc(MAXPATHLEN+1, GFP_KERNEL);
if (!link) {
nd_set_link(nd, ERR_PTR(-ENOMEM));
- return 0;
+ return NULL;
}
uio = (uio_t *)kmalloc(sizeof(uio_t), GFP_KERNEL);
if (!uio) {
kfree(link);
nd_set_link(nd, ERR_PTR(-ENOMEM));
- return 0;
+ return NULL;
}
- vp = LINVFS_GET_VP(dentry->d_inode);
+ vp = vn_from_inode(dentry->d_inode);
iov.iov_base = link;
- iov.iov_len = MAXNAMELEN;
+ iov.iov_len = MAXPATHLEN;
uio->uio_iov = &iov;
uio->uio_offset = 0;
uio->uio_segflg = UIO_SYSSPACE;
- uio->uio_resid = MAXNAMELEN;
+ uio->uio_resid = MAXPATHLEN;
uio->uio_iovcnt = 1;
VOP_READLINK(vp, uio, 0, NULL, error);
kfree(link);
link = ERR_PTR(-error);
} else {
- link[MAXNAMELEN - uio->uio_resid] = '\0';
+ link[MAXPATHLEN - uio->uio_resid] = '\0';
}
kfree(uio);
nd_set_link(nd, link);
- return 0;
+ return NULL;
}
-static void linvfs_put_link(struct dentry *dentry, struct nameidata *nd)
+STATIC void
+xfs_vn_put_link(
+ struct dentry *dentry,
+ struct nameidata *nd,
+ void *p)
{
- char *s = nd_get_link(nd);
+ char *s = nd_get_link(nd);
+
if (!IS_ERR(s))
kfree(s);
}
#ifdef CONFIG_XFS_POSIX_ACL
STATIC int
-linvfs_permission(
+xfs_vn_permission(
struct inode *inode,
int mode,
struct nameidata *nd)
{
- vnode_t *vp = LINVFS_GET_VP(inode);
+ vnode_t *vp = vn_from_inode(inode);
int error;
mode <<= 6; /* convert from linux to vnode access bits */
return -error;
}
#else
-#define linvfs_permission NULL
+#define xfs_vn_permission NULL
#endif
STATIC int
-linvfs_getattr(
+xfs_vn_getattr(
struct vfsmount *mnt,
struct dentry *dentry,
struct kstat *stat)
{
struct inode *inode = dentry->d_inode;
- vnode_t *vp = LINVFS_GET_VP(inode);
+ vnode_t *vp = vn_from_inode(inode);
int error = 0;
if (unlikely(vp->v_flag & VMODIFIED))
}
STATIC int
-linvfs_setattr_flags(
- vattr_t *vap,
- unsigned int flags)
-{
- unsigned int oldflags, newflags;
-
- oldflags = vap->va_xflags;
- newflags = oldflags & ~(XFS_XFLAG_IMMUTABLE |
- XFS_XFLAG_IUNLINK | XFS_XFLAG_BARRIER);
- if (flags & ATTR_FLAG_IMMUTABLE)
- newflags |= XFS_XFLAG_IMMUTABLE;
- if (flags & ATTR_FLAG_IUNLINK)
- newflags |= XFS_XFLAG_IUNLINK;
- if (flags & ATTR_FLAG_BARRIER)
- newflags |= XFS_XFLAG_BARRIER;
-
- if (oldflags ^ newflags)
- vap->va_xflags = newflags;
- return 0;
-}
-
-STATIC int
-linvfs_setattr(
+xfs_vn_setattr(
struct dentry *dentry,
struct iattr *attr)
{
struct inode *inode = dentry->d_inode;
unsigned int ia_valid = attr->ia_valid;
- vnode_t *vp = LINVFS_GET_VP(inode);
- vattr_t vattr;
+ vnode_t *vp = vn_from_inode(inode);
+ vattr_t vattr = { 0 };
int flags = 0;
int error;
if (error)
return error;
- memset(&vattr, 0, sizeof(vattr_t));
if (ia_valid & ATTR_UID) {
vattr.va_mask |= XFS_AT_UID;
vattr.va_uid = attr->ia_uid;
vattr.va_mask |= XFS_AT_GID;
vattr.va_gid = attr->ia_gid;
}
- if (ia_valid & ATTR_XID) {
+ if ((ia_valid & ATTR_XID) && IS_TAGXID(inode)) {
vattr.va_mask |= XFS_AT_XID;
vattr.va_xid = attr->ia_xid;
}
if (ia_valid & ATTR_ATIME) {
vattr.va_mask |= XFS_AT_ATIME;
vattr.va_atime = attr->ia_atime;
+ inode->i_atime = attr->ia_atime;
}
if (ia_valid & ATTR_MTIME) {
vattr.va_mask |= XFS_AT_MTIME;
flags |= ATTR_NONBLOCK;
#endif
- if (ia_valid & ATTR_ATTR_FLAG) {
- vattr.va_mask |= XFS_AT_XFLAGS;
- linvfs_setattr_flags(&vattr, attr->ia_attr_flags);
- }
-
VOP_SETATTR(vp, &vattr, flags, NULL, error);
- if (error)
- return -error;
- vn_revalidate(vp);
- return error;
+ if (likely(!error))
+ __vn_revalidate(vp, &vattr);
+ return -error;
}
STATIC void
-linvfs_truncate(
+xfs_vn_truncate(
struct inode *inode)
{
- block_truncate_page(inode->i_mapping, inode->i_size, linvfs_get_block);
+ block_truncate_page(inode->i_mapping, inode->i_size, xfs_get_blocks);
+}
+
+STATIC int
+xfs_vn_sync_flags(struct inode *inode)
+{
+ unsigned int oldflags, newflags;
+ vattr_t vattr;
+ int flags = 0;
+ int error;
+ vnode_t *vp = vn_from_inode(inode);
+
+ memset(&vattr, 0, sizeof(vattr_t));
+
+ vattr.va_mask = XFS_AT_XFLAGS;
+ VOP_GETATTR(vp, &vattr, 0, NULL, error);
+ if (error)
+ return error;
+ oldflags = vattr.va_xflags;
+ newflags = oldflags & ~(XFS_XFLAG_IMMUTABLE |
+ XFS_XFLAG_IUNLINK | XFS_XFLAG_BARRIER);
+
+ if (IS_IMMUTABLE(inode))
+ newflags |= XFS_XFLAG_IMMUTABLE;
+ if (IS_IUNLINK(inode))
+ newflags |= XFS_XFLAG_IUNLINK;
+ if (IS_BARRIER(inode))
+ newflags |= XFS_XFLAG_BARRIER;
+
+ if (oldflags ^ newflags) {
+ vattr.va_xflags = newflags;
+ vattr.va_mask |= XFS_AT_XFLAGS;
+ VOP_SETATTR(vp, &vattr, flags, NULL, error);
+ }
+ vn_revalidate(vp);
+ return error;
}
STATIC int
-linvfs_setxattr(
+xfs_vn_setxattr(
struct dentry *dentry,
const char *name,
const void *data,
size_t size,
int flags)
{
- vnode_t *vp = LINVFS_GET_VP(dentry->d_inode);
+ vnode_t *vp = vn_from_inode(dentry->d_inode);
char *attr = (char *)name;
attrnames_t *namesp;
int xflags = 0;
}
STATIC ssize_t
-linvfs_getxattr(
+xfs_vn_getxattr(
struct dentry *dentry,
const char *name,
void *data,
size_t size)
{
- vnode_t *vp = LINVFS_GET_VP(dentry->d_inode);
+ vnode_t *vp = vn_from_inode(dentry->d_inode);
char *attr = (char *)name;
attrnames_t *namesp;
int xflags = 0;
}
STATIC ssize_t
-linvfs_listxattr(
+xfs_vn_listxattr(
struct dentry *dentry,
char *data,
size_t size)
{
- vnode_t *vp = LINVFS_GET_VP(dentry->d_inode);
+ vnode_t *vp = vn_from_inode(dentry->d_inode);
int error, xflags = ATTR_KERNAMELS;
ssize_t result;
}
STATIC int
-linvfs_removexattr(
+xfs_vn_removexattr(
struct dentry *dentry,
const char *name)
{
- vnode_t *vp = LINVFS_GET_VP(dentry->d_inode);
+ vnode_t *vp = vn_from_inode(dentry->d_inode);
char *attr = (char *)name;
attrnames_t *namesp;
int xflags = 0;
}
-struct inode_operations linvfs_file_inode_operations = {
- .permission = linvfs_permission,
- .truncate = linvfs_truncate,
- .getattr = linvfs_getattr,
- .setattr = linvfs_setattr,
- .setxattr = linvfs_setxattr,
- .getxattr = linvfs_getxattr,
- .listxattr = linvfs_listxattr,
- .removexattr = linvfs_removexattr,
+struct inode_operations xfs_inode_operations = {
+ .permission = xfs_vn_permission,
+ .truncate = xfs_vn_truncate,
+ .getattr = xfs_vn_getattr,
+ .setattr = xfs_vn_setattr,
+ .setxattr = xfs_vn_setxattr,
+ .getxattr = xfs_vn_getxattr,
+ .listxattr = xfs_vn_listxattr,
+ .removexattr = xfs_vn_removexattr,
+ .sync_flags = xfs_vn_sync_flags,
};
-struct inode_operations linvfs_dir_inode_operations = {
- .create = linvfs_create,
- .lookup = linvfs_lookup,
- .link = linvfs_link,
- .unlink = linvfs_unlink,
- .symlink = linvfs_symlink,
- .mkdir = linvfs_mkdir,
- .rmdir = linvfs_rmdir,
- .mknod = linvfs_mknod,
- .rename = linvfs_rename,
- .permission = linvfs_permission,
- .getattr = linvfs_getattr,
- .setattr = linvfs_setattr,
- .setxattr = linvfs_setxattr,
- .getxattr = linvfs_getxattr,
- .listxattr = linvfs_listxattr,
- .removexattr = linvfs_removexattr,
+struct inode_operations xfs_dir_inode_operations = {
+ .create = xfs_vn_create,
+ .lookup = xfs_vn_lookup,
+ .link = xfs_vn_link,
+ .unlink = xfs_vn_unlink,
+ .symlink = xfs_vn_symlink,
+ .mkdir = xfs_vn_mkdir,
+ .rmdir = xfs_vn_rmdir,
+ .mknod = xfs_vn_mknod,
+ .rename = xfs_vn_rename,
+ .permission = xfs_vn_permission,
+ .getattr = xfs_vn_getattr,
+ .setattr = xfs_vn_setattr,
+ .setxattr = xfs_vn_setxattr,
+ .getxattr = xfs_vn_getxattr,
+ .listxattr = xfs_vn_listxattr,
+ .removexattr = xfs_vn_removexattr,
+ .sync_flags = xfs_vn_sync_flags,
};
-struct inode_operations linvfs_symlink_inode_operations = {
+struct inode_operations xfs_symlink_inode_operations = {
.readlink = generic_readlink,
- .follow_link = linvfs_follow_link,
- .put_link = linvfs_put_link,
- .permission = linvfs_permission,
- .getattr = linvfs_getattr,
- .setattr = linvfs_setattr,
- .setxattr = linvfs_setxattr,
- .getxattr = linvfs_getxattr,
- .listxattr = linvfs_listxattr,
- .removexattr = linvfs_removexattr,
+ .follow_link = xfs_vn_follow_link,
+ .put_link = xfs_vn_put_link,
+ .permission = xfs_vn_permission,
+ .getattr = xfs_vn_getattr,
+ .setattr = xfs_vn_setattr,
+ .setxattr = xfs_vn_setxattr,
+ .getxattr = xfs_vn_getxattr,
+ .listxattr = xfs_vn_listxattr,
+ .removexattr = xfs_vn_removexattr,
+ .sync_flags = xfs_vn_sync_flags,
};
git://git.onelab.eu / linux-2.6.git / blobdiff