/*
* We don't define our `inode->i_op->truncate', and call it here,
* because of:
* - there is no way to know old size
* - there is no way inform user about error, if it happens in `truncate'
*/
static int ufs_setattr(struct dentry *dentry, struct iattr *attr)
{
struct inode *inode = dentry->d_inode;
unsigned int ia_valid = attr->ia_valid;
int error;
error = inode_change_ok(inode, attr);
if (error)
return error;
if ((ia_valid & ATTR_UID && attr->ia_uid != inode->i_uid) ||
(ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid)) {
error = vfs_dq_transfer(inode, attr) ? -EDQUOT : 0;
if (error)
return error;
}
if (ia_valid & ATTR_SIZE &&
attr->ia_size != i_size_read(inode)) {
loff_t old_i_size = inode->i_size;
error = vmtruncate(inode, attr->ia_size);
if (error)
return error;
error = ufs_truncate(inode, old_i_size);
if (error)
return error;
}
return inode_setattr(inode, attr);
}
static int setattr_chown(struct inode *inode, struct iattr *attr)
{
struct gfs2_inode *ip = GFS2_I(inode);
struct gfs2_sbd *sdp = GFS2_SB(inode);
struct buffer_head *dibh;
u32 ouid, ogid, nuid, ngid;
int error;
ouid = inode->i_uid;
ogid = inode->i_gid;
nuid = attr->ia_uid;
ngid = attr->ia_gid;
if (!(attr->ia_valid & ATTR_UID) || ouid == nuid)
ouid = nuid = NO_QUOTA_CHANGE;
if (!(attr->ia_valid & ATTR_GID) || ogid == ngid)
ogid = ngid = NO_QUOTA_CHANGE;
if (!gfs2_alloc_get(ip))
return -ENOMEM;
error = gfs2_quota_lock(ip, nuid, ngid);
if (error)
goto out_alloc;
if (ouid != NO_QUOTA_CHANGE || ogid != NO_QUOTA_CHANGE) {
error = gfs2_quota_check(ip, nuid, ngid);
if (error)
goto out_gunlock_q;
}
error = gfs2_trans_begin(sdp, RES_DINODE + 2 * RES_QUOTA, 0);
if (error)
goto out_gunlock_q;
error = gfs2_meta_inode_buffer(ip, &dibh);
if (error)
goto out_end_trans;
error = inode_setattr(inode, attr);
gfs2_assert_warn(sdp, !error);
gfs2_trans_add_bh(ip->i_gl, dibh, 1);
gfs2_dinode_out(ip, dibh->b_data);
brelse(dibh);
if (ouid != NO_QUOTA_CHANGE || ogid != NO_QUOTA_CHANGE) {
u64 blocks = gfs2_get_inode_blocks(&ip->i_inode);
gfs2_quota_change(ip, -blocks, ouid, ogid);
gfs2_quota_change(ip, blocks, nuid, ngid);
}
out_end_trans:
gfs2_trans_end(sdp);
out_gunlock_q:
gfs2_quota_unlock(ip);
out_alloc:
gfs2_alloc_put(ip);
return error;
}
/** Change attributes of an object referenced by dentry.
*/
int pvfs2_setattr(struct dentry *dentry, struct iattr *iattr)
{
int ret = -EINVAL;
struct inode *inode = dentry->d_inode;
gossip_debug(GOSSIP_INODE_DEBUG, "pvfs2_setattr: called on %s\n", dentry->d_name.name);
ret = inode_change_ok(inode, iattr);
if (ret == 0)
{
ret = inode_setattr(inode, iattr);
gossip_debug(GOSSIP_INODE_DEBUG, "pvfs2_setattr: inode_setattr returned %d\n", ret);
if (ret == 0)
{
ret = pvfs2_inode_setattr(inode, iattr);
#if !defined(PVFS2_LINUX_KERNEL_2_4) && defined(HAVE_GENERIC_GETXATTR) && defined(CONFIG_FS_POSIX_ACL)
if (!ret && (iattr->ia_valid & ATTR_MODE))
{
/* change mod on a file that has ACLs */
ret = pvfs2_acl_chmod(inode);
}
#endif
}
}
gossip_debug(GOSSIP_INODE_DEBUG, "pvfs2_setattr: returning %d\n", ret);
return ret;
}
int sysfs_setattr(struct dentry *dentry, struct iattr *iattr)
{
struct inode *inode = dentry->d_inode;
struct sysfs_dirent *sd = dentry->d_fsdata;
int error;
if (!sd)
return -EINVAL;
error = inode_change_ok(inode, iattr);
if (error)
return error;
iattr->ia_valid &= ~ATTR_SIZE; /* ignore size changes */
error = inode_setattr(inode, iattr);
if (error)
return error;
mutex_lock(&sysfs_mutex);
error = sysfs_sd_setattr(sd, iattr);
mutex_unlock(&sysfs_mutex);
return error;
}
int
affs_notify_change(struct dentry *dentry, struct iattr *attr)
{
struct inode *inode = dentry->d_inode;
int error;
pr_debug("AFFS: notify_change(%lu,0x%x)\n",inode->i_ino,attr->ia_valid);
error = inode_change_ok(inode,attr);
if (error)
goto out;
if (((attr->ia_valid & ATTR_UID) && (inode->i_sb->u.affs_sb.s_flags & SF_SETUID)) ||
((attr->ia_valid & ATTR_GID) && (inode->i_sb->u.affs_sb.s_flags & SF_SETGID)) ||
((attr->ia_valid & ATTR_MODE) &&
(inode->i_sb->u.affs_sb.s_flags & (SF_SETMODE | SF_IMMUTABLE)))) {
if (!(inode->i_sb->u.affs_sb.s_flags & SF_QUIET))
error = -EPERM;
goto out;
}
if (attr->ia_valid & ATTR_MODE)
inode->u.affs_i.i_protect = mode_to_prot(attr->ia_mode);
inode_setattr(inode, attr);
mark_inode_dirty(inode);
error = 0;
out:
return error;
}
int hpfs_setattr(struct dentry *dentry, struct iattr *attr)
{
struct inode *inode = dentry->d_inode;
int error = -EINVAL;
lock_kernel();
if (inode->i_ino == hpfs_sb(inode->i_sb)->sb_root)
goto out_unlock;
if ((attr->ia_valid & ATTR_SIZE) && attr->ia_size > inode->i_size)
goto out_unlock;
error = inode_change_ok(inode, attr);
if (error)
goto out_unlock;
error = inode_setattr(inode, attr);
if (error)
goto out_unlock;
hpfs_write_inode(inode);
out_unlock:
unlock_kernel();
return error;
}
int
affs_notify_change(struct dentry *dentry, struct iattr *attr)
{
struct inode *inode = dentry->d_inode;
int error;
pr_debug("AFFS: notify_change(%lu,0x%x)\n",inode->i_ino,attr->ia_valid);
error = inode_change_ok(inode,attr);
if (error)
goto out;
if (((attr->ia_valid & ATTR_UID) && (AFFS_SB(inode->i_sb)->s_flags & SF_SETUID)) ||
((attr->ia_valid & ATTR_GID) && (AFFS_SB(inode->i_sb)->s_flags & SF_SETGID)) ||
((attr->ia_valid & ATTR_MODE) &&
(AFFS_SB(inode->i_sb)->s_flags & (SF_SETMODE | SF_IMMUTABLE)))) {
if (!(AFFS_SB(inode->i_sb)->s_flags & SF_QUIET))
error = -EPERM;
goto out;
}
error = inode_setattr(inode, attr);
if (!error && (attr->ia_valid & ATTR_MODE))
mode_to_prot(inode);
out:
return error;
}
static int
ospfs_notify_change(struct dentry *dentry, struct iattr *attr)
{
struct inode *inode = dentry->d_inode;
ospfs_inode_t *oi = ospfs_inode(inode->i_ino);
int retval = 0;
if (attr->ia_valid & ATTR_SIZE) {
// We should not be able to change directory size
if (oi->oi_ftype == OSPFS_FTYPE_DIR)
return -EPERM;
if ((retval = change_size(oi, attr->ia_size)) < 0)
goto out;
}
if (attr->ia_valid & ATTR_MODE)
// Set this inode's mode to the value 'attr->ia_mode'.
oi->oi_mode = attr->ia_mode;
if ((retval = inode_change_ok(inode, attr)) < 0
|| (retval = inode_setattr(inode, attr)) < 0)
goto out;
out:
return retval;
}
static int replayfs_setattr(struct dentry *dentry, struct iattr *ia) {
int error;
struct inode *inode;
replayfs_log_t log;
replayfs_log_inode_t log_inode;
inode = dentry->d_inode;
error = replayfs_begin_log_operation(&log);
if (error) {
goto out;
}
replayfs_log_add_inode(&log, &log_inode, inode);
error = inode_change_ok(inode, ia);
if (!error) {
error = inode_setattr(inode, ia);
}
replayfs_inode_modified_metadata(inode, &log, &log_inode);
replayfs_log_inode_done(&log, &log_inode, inode->i_size);
replayfs_end_log_operation(&log);
out:
return error;
}
int sysfs_setattr(struct dentry * dentry, struct iattr * iattr)
{
struct inode * inode = dentry->d_inode;
struct sysfs_dirent * sd = dentry->d_fsdata;
struct iattr * sd_iattr;
unsigned int ia_valid = iattr->ia_valid;
int error;
if (!sd)
return -EINVAL;
sd_iattr = sd->s_iattr;
error = inode_change_ok(inode, iattr);
if (error)
return error;
error = inode_setattr(inode, iattr);
if (error)
return error;
if (!sd_iattr) {
/* setting attributes for the first time, allocate now */
sd_iattr = kzalloc(sizeof(struct iattr), GFP_KERNEL);
if (!sd_iattr)
return -ENOMEM;
/* assign default attributes */
sd_iattr->ia_mode = sd->s_mode;
sd_iattr->ia_uid = 0;
sd_iattr->ia_gid = 0;
sd_iattr->ia_atime = sd_iattr->ia_mtime = sd_iattr->ia_ctime = CURRENT_TIME;
sd->s_iattr = sd_iattr;
}
/* attributes were changed atleast once in past */
if (ia_valid & ATTR_UID)
sd_iattr->ia_uid = iattr->ia_uid;
if (ia_valid & ATTR_GID)
sd_iattr->ia_gid = iattr->ia_gid;
if (ia_valid & ATTR_ATIME)
sd_iattr->ia_atime = timespec_trunc(iattr->ia_atime,
inode->i_sb->s_time_gran);
if (ia_valid & ATTR_MTIME)
sd_iattr->ia_mtime = timespec_trunc(iattr->ia_mtime,
inode->i_sb->s_time_gran);
if (ia_valid & ATTR_CTIME)
sd_iattr->ia_ctime = timespec_trunc(iattr->ia_ctime,
inode->i_sb->s_time_gran);
if (ia_valid & ATTR_MODE) {
umode_t mode = iattr->ia_mode;
if (!in_group_p(inode->i_gid) && !capable(CAP_FSETID))
mode &= ~S_ISGID;
sd_iattr->ia_mode = sd->s_mode = mode;
}
return error;
}
/**
* @brief Changes ownership of the dev
*
* @param name pointer to character
* @param user uid_t type data
* @param group gid_t type data
* @return 0--success otherwise failure
*/
int
mbtchar_chown(char *name, uid_t user, gid_t group)
{
struct path path;
struct inode *inode = NULL;
struct iattr newattrs;
int ret = 0;
int retrycount = 0;
ENTER();
do {
os_sched_timeout(30);
ret = kern_path(name, LOOKUP_FOLLOW, &path);
if (++retrycount >= 10) {
PRINTM(ERROR,
"mbtchar_chown(): fail to get kern_path\n");
LEAVE();
return -EFAULT;
}
} while (ret);
inode = path.dentry->d_inode;
mutex_lock(&inode->i_mutex);
ret = mnt_want_write(path.mnt);
if (ret)
goto out_unlock;
newattrs.ia_valid = ATTR_CTIME;
if (user != (uid_t) (-1)) {
newattrs.ia_valid |= ATTR_UID;
newattrs.ia_uid = user;
}
if (group != (gid_t) (-1)) {
newattrs.ia_valid |= ATTR_GID;
newattrs.ia_gid = group;
}
if (!S_ISDIR(inode->i_mode))
newattrs.ia_valid |=
ATTR_KILL_SUID | ATTR_KILL_SGID | ATTR_KILL_PRIV;
if (inode->i_op->setattr)
ret = inode->i_op->setattr(path.dentry, &newattrs);
else
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 35)
ret = simple_setattr(path.dentry, &newattrs);
#else
ret = inode_setattr(inode, &newattrs);
#endif
mutex_unlock(&inode->i_mutex);
mnt_drop_write(path.mnt);
path_put(&path);
LEAVE();
return ret;
out_unlock:
mutex_unlock(&inode->i_mutex);
mnt_drop_write(path.mnt);
path_put(&path);
return ret;
}
int sysfs_setattr(struct dentry * dentry, struct iattr * iattr)
{
struct inode * inode = dentry->d_inode;
struct sysfs_dirent * sd = dentry->d_fsdata;
struct sysfs_inode_attrs *sd_attrs;
struct iattr *iattrs;
unsigned int ia_valid = iattr->ia_valid;
int error;
if (!sd)
return -EINVAL;
sd_attrs = sd->s_iattr;
error = inode_change_ok(inode, iattr);
if (error)
return error;
iattr->ia_valid &= ~ATTR_SIZE; /* ignore size changes */
error = inode_setattr(inode, iattr);
if (error)
return error;
if (!sd_attrs) {
/* setting attributes for the first time, allocate now */
sd_attrs = sysfs_init_inode_attrs(sd);
if (!sd_attrs)
return -ENOMEM;
sd->s_iattr = sd_attrs;
}
/* attributes were changed at least once in past */
iattrs = &sd_attrs->ia_iattr;
if (ia_valid & ATTR_UID)
iattrs->ia_uid = iattr->ia_uid;
if (ia_valid & ATTR_GID)
iattrs->ia_gid = iattr->ia_gid;
if (ia_valid & ATTR_ATIME)
iattrs->ia_atime = timespec_trunc(iattr->ia_atime,
inode->i_sb->s_time_gran);
if (ia_valid & ATTR_MTIME)
iattrs->ia_mtime = timespec_trunc(iattr->ia_mtime,
inode->i_sb->s_time_gran);
if (ia_valid & ATTR_CTIME)
iattrs->ia_ctime = timespec_trunc(iattr->ia_ctime,
inode->i_sb->s_time_gran);
if (ia_valid & ATTR_MODE) {
umode_t mode = iattr->ia_mode;
if (!in_group_p(inode->i_gid) && !capable(CAP_FSETID))
mode &= ~S_ISGID;
iattrs->ia_mode = sd->s_mode = mode;
}
return error;
}
int fat_notify_change(struct dentry *dentry, struct iattr *attr)
{
struct msdos_sb_info *sbi = MSDOS_SB(dentry->d_sb);
struct inode *inode = dentry->d_inode;
int mask, error = 0;
lock_kernel();
/*
* Expand the file. Since inode_setattr() updates ->i_size
* before calling the ->truncate(), but FAT needs to fill the
* hole before it.
*/
if (attr->ia_valid & ATTR_SIZE) {
if (attr->ia_size > inode->i_size) {
error = fat_cont_expand(inode, attr->ia_size);
//error = fat_cont_expand(inode, (unsigned int)attr->ia_size);
if (error || attr->ia_valid == ATTR_SIZE)
goto out;
attr->ia_valid &= ~ATTR_SIZE;
}
}
error = inode_change_ok(inode, attr);
if (error) {
if (sbi->options.quiet)
error = 0;
goto out;
}
if (((attr->ia_valid & ATTR_UID) &&
(attr->ia_uid != sbi->options.fs_uid)) ||
((attr->ia_valid & ATTR_GID) &&
(attr->ia_gid != sbi->options.fs_gid)) ||
((attr->ia_valid & ATTR_MODE) &&
(attr->ia_mode & ~MSDOS_VALID_MODE)))
error = -EPERM;
if (error) {
if (sbi->options.quiet)
error = 0;
goto out;
}
error = inode_setattr(inode, attr);
if (error)
goto out;
if (S_ISDIR(inode->i_mode))
mask = sbi->options.fs_dmask;
else
mask = sbi->options.fs_fmask;
inode->i_mode &= S_IFMT | (S_IRWXUGO & ~mask);
out:
unlock_kernel();
return error;
}
/*
* We do ->setattr() just to override size changes. Our size is the size
* of the LVB and nothing else.
*/
static int dlmfs_file_setattr(struct dentry *dentry, struct iattr *attr)
{
int error;
struct inode *inode = dentry->d_inode;
attr->ia_valid &= ~ATTR_SIZE;
error = inode_change_ok(inode, attr);
if (!error)
error = inode_setattr(inode, attr);
return error;
}
static int proc_sys_setattr(struct dentry *dentry, struct iattr *attr)
{
struct inode *inode = dentry->d_inode;
int error;
if (attr->ia_valid & (ATTR_MODE | ATTR_UID | ATTR_GID))
return -EPERM;
error = inode_change_ok(inode, attr);
if (!error)
error = inode_setattr(inode, attr);
return error;
}
/**
* @brief Changes permissions of the dev
*
* @param name pointer to character
* @param mode mode_t type data
* @return 0--success otherwise failure
*/
int
mbtchar_chmod(char *name, mode_t mode)
{
struct path path;
struct inode *inode;
struct iattr newattrs;
int ret;
int retrycount = 0;
ENTER();
do {
os_sched_timeout(30);
ret = kern_path(name, LOOKUP_FOLLOW, &path);
if (++retrycount >= 10) {
PRINTM(ERROR,
"mbtchar_chmod(): fail to get kern_path\n");
LEAVE();
return -EFAULT;
}
} while (ret);
inode = path.dentry->d_inode;
mutex_lock(&inode->i_mutex);
ret = mnt_want_write(path.mnt);
if (ret)
goto out_unlock;
newattrs.ia_mode = (mode & S_IALLUGO) | (inode->i_mode & ~S_IALLUGO);
newattrs.ia_valid = ATTR_MODE | ATTR_CTIME;
if (inode->i_op->setattr)
ret = inode->i_op->setattr(path.dentry, &newattrs);
else
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 35)
ret = simple_setattr(path.dentry, &newattrs);
#else
ret = inode_setattr(inode, &newattrs);
#endif
mutex_unlock(&inode->i_mutex);
mnt_drop_write(path.mnt);
path_put(&path);
LEAVE();
return ret;
out_unlock:
mutex_unlock(&inode->i_mutex);
mnt_drop_write(path.mnt);
path_put(&path);
return ret;
}
static int
__gfs2_setattr_simple(struct gfs2_inode *ip, struct iattr *attr)
{
struct buffer_head *dibh;
int error;
error = gfs2_meta_inode_buffer(ip, &dibh);
if (!error) {
error = inode_setattr(&ip->i_inode, attr);
gfs2_assert_warn(GFS2_SB(&ip->i_inode), !error);
gfs2_trans_add_bh(ip->i_gl, dibh, 1);
gfs2_dinode_out(ip, dibh->b_data);
brelse(dibh);
}
return error;
}
//-------------------------------- iof_setattr ---------------------------------
static int
iof_setattr(struct dentry* dentry,struct iattr* attr)
{
struct inode* inode=dentry->d_inode;
struct lxafs_inode_info* li=LXAFS_I(inode);
int error=0;
li->ia_valid|=attr->ia_valid;
lock_kernel();
error=inode_change_ok(inode,attr);
if(!error)
error=inode_setattr(inode,attr);
unlock_kernel();
if(!error)
lxafs_write_inode(inode,1);
return error;
}
int hpfs_notify_change(struct dentry *dentry, struct iattr *attr)
{
struct inode *inode = dentry->d_inode;
int error=0;
lock_kernel();
if ( ((attr->ia_valid & ATTR_SIZE) && attr->ia_size > inode->i_size) ||
(hpfs_sb(inode->i_sb)->sb_root == inode->i_ino) ) {
error = -EINVAL;
} else if ((error = inode_change_ok(inode, attr))) {
} else if ((error = inode_setattr(inode, attr))) {
} else {
hpfs_write_inode(inode);
}
unlock_kernel();
return error;
}
/**
* proc_notify_change - Update inode's attributes and reflect to the dentry.
*
* @dentry: Pointer to "struct dentry".
* @iattr: Pointer to "struct iattr".
*
* Returns 0 on success, negative value otherwise.
*
* The 2.4 kernels don't allow chmod()/chown() for files in /proc ,
* while the 2.6 kernels allow.
* To permit management of /proc/ccs/ interface by non-root user,
* I modified to allow chmod()/chown() of /proc/ccs/ interface like 2.6 kernels
* by adding "struct inode_operations"->setattr hook.
*/
static int proc_notify_change(struct dentry *dentry, struct iattr *iattr)
{
struct inode *inode = dentry->d_inode;
struct proc_dir_entry *de = PDE(inode);
int error;
error = inode_change_ok(inode, iattr);
if (error)
goto out;
error = inode_setattr(inode, iattr);
if (error)
goto out;
de->uid = inode->i_uid;
de->gid = inode->i_gid;
de->mode = inode->i_mode;
out:
return error;
}
static int prlfs_inode_setattr(struct inode *inode, struct iattr *attr)
{
int ret = 0;
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,36)
ret = inode_setattr(inode, attr);
#else
if ((attr->ia_valid & ATTR_SIZE &&
attr->ia_size != i_size_read(inode))) {
ret = inode_newsize_ok(inode, attr->ia_size);
if (ret)
goto out;
truncate_setsize(inode, attr->ia_size);
}
setattr_copy(inode, attr);
mark_inode_dirty(inode);
out:
#endif
return ret;
}
int jfs_setattr(struct dentry *dentry, struct iattr *iattr)
{
struct inode *inode = dentry->d_inode;
int rc;
rc = inode_change_ok(inode, iattr);
if (rc)
return rc;
if ((iattr->ia_valid & ATTR_UID && iattr->ia_uid != inode->i_uid) ||
(iattr->ia_valid & ATTR_GID && iattr->ia_gid != inode->i_gid)) {
if (DQUOT_TRANSFER(inode, iattr))
return -EDQUOT;
}
rc = inode_setattr(inode, iattr);
if (!rc && (iattr->ia_valid & ATTR_MODE))
rc = jfs_acl_chmod(inode);
return rc;
}
/*
* We don't define our `inode->i_op->truncate', and call it here,
* because of:
* - there is no way to know old size
* - there is no way inform user about error, if it happens in `truncate'
*/
static int ufs_setattr(struct dentry *dentry, struct iattr *attr)
{
struct inode *inode = dentry->d_inode;
unsigned int ia_valid = attr->ia_valid;
int error;
error = inode_change_ok(inode, attr);
if (error)
return error;
if (ia_valid & ATTR_SIZE &&
attr->ia_size != i_size_read(inode)) {
loff_t old_i_size = inode->i_size;
error = vmtruncate(inode, attr->ia_size);
if (error)
return error;
error = ufs_truncate(inode, old_i_size);
if (error)
return error;
}
return inode_setattr(inode, attr);
}
int notify_change(register struct inode *inode, register struct iattr *attr)
{
int retval;
attr->ia_ctime = CURRENT_TIME;
if (attr->ia_valid & (ATTR_ATIME | ATTR_MTIME)) {
if (!(attr->ia_valid & ATTR_ATIME_SET))
attr->ia_atime = attr->ia_ctime;
if (!(attr->ia_valid & ATTR_MTIME_SET))
attr->ia_mtime = attr->ia_ctime;
}
#ifdef BLOAT_FS
if (inode->i_sb && inode->i_sb->s_op && inode->i_sb->s_op->notify_change)
return inode->i_sb->s_op->notify_change(inode, attr);
#endif
if ((retval = inode_change_ok(inode, attr)) != 0)
return retval;
inode_setattr(inode, attr);
return 0;
}
static int reiserfs_setattr(struct dentry *dentry, struct iattr *attr) {
struct inode *inode = dentry->d_inode ;
int error ;
if (attr->ia_valid & ATTR_SIZE) {
/* version 2 items will be caught by the s_maxbytes check
** done for us in vmtruncate
*/
if (get_inode_item_key_version(inode) == KEY_FORMAT_3_5 &&
attr->ia_size > MAX_NON_LFS)
return -EFBIG ;
/* fill in hole pointers in the expanding truncate case. */
if (attr->ia_size > inode->i_size) {
error = generic_cont_expand(inode, attr->ia_size) ;
if (inode->u.reiserfs_i.i_prealloc_count > 0) {
struct reiserfs_transaction_handle th ;
/* we're changing at most 2 bitmaps, inode + super */
journal_begin(&th, inode->i_sb, 4) ;
reiserfs_discard_prealloc (&th, inode);
journal_end(&th, inode->i_sb, 4) ;
}
if (error)
return error ;
}
}
if ((((attr->ia_valid & ATTR_UID) && (attr->ia_uid & ~0xffff)) ||
((attr->ia_valid & ATTR_GID) && (attr->ia_gid & ~0xffff))) &&
(get_inode_sd_version (inode) == STAT_DATA_V1))
/* stat data of format v3.5 has 16 bit uid and gid */
return -EINVAL;
error = inode_change_ok(inode, attr) ;
if (!error)
inode_setattr(inode, attr) ;
return error ;
}
int notify_change(struct dentry * dentry, struct iattr * attr)
{
struct inode *inode = dentry->d_inode;
int error;
time_t now = CURRENT_TIME;
unsigned int ia_valid = attr->ia_valid;
attr->ia_ctime = now;
if (!(ia_valid & ATTR_ATIME_SET))
attr->ia_atime = now;
if (!(ia_valid & ATTR_MTIME_SET))
attr->ia_mtime = now;
if (inode->i_sb && inode->i_sb->s_op &&
inode->i_sb->s_op->notify_change)
error = inode->i_sb->s_op->notify_change(dentry, attr);
else {
error = inode_change_ok(inode, attr);
if (!error)
inode_setattr(inode, attr);
}
return error;
}
int notify_change(struct dentry * dentry, struct iattr * attr)
{
struct inode *inode = dentry->d_inode;
int error;
time_t now = CURRENT_TIME;
unsigned int ia_valid = attr->ia_valid;
if (!inode)
BUG();
attr->ia_ctime = now;
if (!(ia_valid & ATTR_ATIME_SET))
attr->ia_atime = now;
if (!(ia_valid & ATTR_MTIME_SET))
attr->ia_mtime = now;
lock_kernel();
if (inode->i_op && inode->i_op->setattr)
error = inode->i_op->setattr(dentry, attr);
else {
error = inode_change_ok(inode, attr);
if (!error) {
if ((ia_valid & ATTR_UID && attr->ia_uid != inode->i_uid) ||
(ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid))
error = DQUOT_TRANSFER(inode, attr) ? -EDQUOT : 0;
if (!error)
error = inode_setattr(inode, attr);
}
}
unlock_kernel();
if (!error) {
unsigned long dn_mask = setattr_mask(ia_valid);
if (dn_mask)
dnotify_parent(dentry, dn_mask);
}
return error;
}
int nilfs_setattr(struct dentry *dentry, struct iattr *iattr)
{
struct nilfs_transaction_info ti;
struct inode *inode = dentry->d_inode;
struct super_block *sb = inode->i_sb;
int err;
err = inode_change_ok(inode, iattr);
if (err)
return err;
err = nilfs_transaction_begin(sb, &ti, 0);
if (unlikely(err))
return err;
err = inode_setattr(inode, iattr);
if (!err && (iattr->ia_valid & ATTR_MODE))
err = nilfs_acl_chmod(inode);
if (likely(!err))
err = nilfs_transaction_commit(sb);
else
nilfs_transaction_abort(sb);
return err;
}
int ncp_notify_change(struct dentry *dentry, struct iattr *attr)
{
struct inode *inode = dentry->d_inode;
int result = 0;
__le32 info_mask;
struct nw_modify_dos_info info;
struct ncp_server *server;
result = -EIO;
lock_kernel();
server = NCP_SERVER(inode);
if ((!server) || !ncp_conn_valid(server))
goto out;
/* ageing the dentry to force validation */
ncp_age_dentry(server, dentry);
result = inode_change_ok(inode, attr);
if (result < 0)
goto out;
result = -EPERM;
if (((attr->ia_valid & ATTR_UID) &&
(attr->ia_uid != server->m.uid)))
goto out;
if (((attr->ia_valid & ATTR_GID) &&
(attr->ia_gid != server->m.gid)))
goto out;
if (((attr->ia_valid & ATTR_MODE) &&
(attr->ia_mode &
~(S_IFREG | S_IFDIR | S_IRWXUGO))))
goto out;
info_mask = 0;
memset(&info, 0, sizeof(info));
#if 1
if ((attr->ia_valid & ATTR_MODE) != 0)
{
umode_t newmode = attr->ia_mode;
info_mask |= DM_ATTRIBUTES;
if (S_ISDIR(inode->i_mode)) {
newmode &= server->m.dir_mode;
} else {
#ifdef CONFIG_NCPFS_EXTRAS
if (server->m.flags & NCP_MOUNT_EXTRAS) {
/* any non-default execute bit set */
if (newmode & ~server->m.file_mode & S_IXUGO)
info.attributes |= aSHARED | aSYSTEM;
/* read for group/world and not in default file_mode */
else if (newmode & ~server->m.file_mode & S_IRUGO)
info.attributes |= aSHARED;
} else
#endif
newmode &= server->m.file_mode;
}
if (newmode & S_IWUGO)
info.attributes &= ~(aRONLY|aRENAMEINHIBIT|aDELETEINHIBIT);
else
info.attributes |= (aRONLY|aRENAMEINHIBIT|aDELETEINHIBIT);
#ifdef CONFIG_NCPFS_NFS_NS
if (ncp_is_nfs_extras(server, NCP_FINFO(inode)->volNumber)) {
result = ncp_modify_nfs_info(server,
NCP_FINFO(inode)->volNumber,
NCP_FINFO(inode)->dirEntNum,
attr->ia_mode, 0);
if (result != 0)
goto out;
info.attributes &= ~(aSHARED | aSYSTEM);
{
/* mark partial success */
struct iattr tmpattr;
tmpattr.ia_valid = ATTR_MODE;
tmpattr.ia_mode = attr->ia_mode;
result = inode_setattr(inode, &tmpattr);
if (result)
goto out;
}
}
#endif
}
#endif
/* Do SIZE before attributes, otherwise mtime together with size does not work...
*/
if ((attr->ia_valid & ATTR_SIZE) != 0) {
int written;
DPRINTK("ncpfs: trying to change size to %ld\n",
attr->ia_size);
if ((result = ncp_make_open(inode, O_WRONLY)) < 0) {
result = -EACCES;
goto out;
}
ncp_write_kernel(NCP_SERVER(inode), NCP_FINFO(inode)->file_handle,
attr->ia_size, 0, "", &written);
/* According to ndir, the changes only take effect after
closing the file */
ncp_inode_close(inode);
result = ncp_make_closed(inode);
if (result)
goto out;
{
struct iattr tmpattr;
tmpattr.ia_valid = ATTR_SIZE;
tmpattr.ia_size = attr->ia_size;
result = inode_setattr(inode, &tmpattr);
if (result)
goto out;
}
}
if ((attr->ia_valid & ATTR_CTIME) != 0) {
info_mask |= (DM_CREATE_TIME | DM_CREATE_DATE);
ncp_date_unix2dos(attr->ia_ctime.tv_sec,
&info.creationTime, &info.creationDate);
}
if ((attr->ia_valid & ATTR_MTIME) != 0) {
info_mask |= (DM_MODIFY_TIME | DM_MODIFY_DATE);
ncp_date_unix2dos(attr->ia_mtime.tv_sec,
&info.modifyTime, &info.modifyDate);
}
if ((attr->ia_valid & ATTR_ATIME) != 0) {
__le16 dummy;
info_mask |= (DM_LAST_ACCESS_DATE);
ncp_date_unix2dos(attr->ia_atime.tv_sec,
&dummy, &info.lastAccessDate);
}
if (info_mask != 0) {
result = ncp_modify_file_or_subdir_dos_info(NCP_SERVER(inode),
inode, info_mask, &info);
if (result != 0) {
result = -EACCES;
if (info_mask == (DM_CREATE_TIME | DM_CREATE_DATE)) {
/* NetWare seems not to allow this. I
do not know why. So, just tell the
user everything went fine. This is
a terrible hack, but I do not know
how to do this correctly. */
result = 0;
} else
goto out;
}
#ifdef CONFIG_NCPFS_STRONG
if ((!result) && (info_mask & DM_ATTRIBUTES))
NCP_FINFO(inode)->nwattr = info.attributes;
#endif
}
if (!result)
result = inode_setattr(inode, attr);
out:
unlock_kernel();
return result;
}
int notify_change(struct dentry * dentry, struct iattr * attr)
{
struct inode *inode = dentry->d_inode;
mode_t mode;
int error;
struct timespec now;
unsigned int ia_valid = attr->ia_valid;
mode = inode->i_mode;
now = current_fs_time(inode->i_sb);
attr->ia_ctime = now;
if (!(ia_valid & ATTR_ATIME_SET))
attr->ia_atime = now;
if (!(ia_valid & ATTR_MTIME_SET))
attr->ia_mtime = now;
if (ia_valid & ATTR_KILL_SUID) {
attr->ia_valid &= ~ATTR_KILL_SUID;
if (mode & S_ISUID) {
if (!(ia_valid & ATTR_MODE)) {
ia_valid = attr->ia_valid |= ATTR_MODE;
attr->ia_mode = inode->i_mode;
}
attr->ia_mode &= ~S_ISUID;
}
}
if (ia_valid & ATTR_KILL_SGID) {
attr->ia_valid &= ~ ATTR_KILL_SGID;
if ((mode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP)) {
if (!(ia_valid & ATTR_MODE)) {
ia_valid = attr->ia_valid |= ATTR_MODE;
attr->ia_mode = inode->i_mode;
}
attr->ia_mode &= ~S_ISGID;
}
}
if (!attr->ia_valid)
return 0;
if (ia_valid & ATTR_SIZE)
down_write(&dentry->d_inode->i_alloc_sem);
if (inode->i_op && inode->i_op->setattr) {
error = security_inode_setattr(dentry, attr);
if (!error)
error = inode->i_op->setattr(dentry, attr);
} else {
error = inode_change_ok(inode, attr);
if (!error)
error = security_inode_setattr(dentry, attr);
if (!error) {
if ((ia_valid & ATTR_UID && attr->ia_uid != inode->i_uid) ||
(ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid))
error = DQUOT_TRANSFER(inode, attr) ? -EDQUOT : 0;
if (!error)
error = inode_setattr(inode, attr);
}
}
if (ia_valid & ATTR_SIZE)
up_write(&dentry->d_inode->i_alloc_sem);
if (!error)
fsnotify_change(dentry, ia_valid);
return error;
}
