static int nfs_file_write(struct inode *inode, struct file *file, char *buf,
int count)
{
int result;
int hunk;
int i;
int n;
struct nfs_fattr fattr;
char *data;
int pos;
if (!inode) {
printk("nfs_file_write: inode = NULL\n");
return -EINVAL;
}
if (!S_ISREG(inode->i_mode)) {
printk("nfs_file_write: write to non-file, mode %07o\n",
inode->i_mode);
return -EINVAL;
}
if (count <= 0)
return 0;
pos = file->f_pos;
if (file->f_flags & O_APPEND)
pos = inode->i_size;
n = NFS_SERVER(inode)->wsize;
data = (char *) kmalloc(n, GFP_KERNEL);
for (i = 0; i < count; i += n) {
hunk = count - i;
if (hunk >= n)
hunk = n;
memcpy_fromfs(data, buf, hunk);
result = nfs_proc_write(NFS_SERVER(inode), NFS_FH(inode),
pos, hunk, data, &fattr);
if (result < 0) {
kfree_s(data, n);
return result;
}
pos += hunk;
buf += hunk;
if (hunk < n) {
i += hunk;
break;
}
}
file->f_pos = pos;
kfree_s(data, n);
nfs_refresh_inode(inode, &fattr);
return i;
}
static int nfs_file_write(struct inode *inode, struct file *file, char *buf,
int count)
{
int result, hunk, i, n, pos;
struct nfs_fattr fattr;
if (!inode) {
printk("nfs_file_write: inode = NULL\n");
return -EINVAL;
}
if (!S_ISREG(inode->i_mode)) {
printk("nfs_file_write: write to non-file, mode %07o\n",
inode->i_mode);
return -EINVAL;
}
if (count <= 0)
return 0;
pos = file->f_pos;
if (file->f_flags & O_APPEND)
pos = inode->i_size;
n = NFS_SERVER(inode)->wsize;
for (i = 0; i < count; i += n) {
hunk = count - i;
if (hunk >= n)
hunk = n;
result = nfs_proc_write(NFS_SERVER(inode), NFS_FH(inode),
pos, hunk, buf, &fattr);
if (result < 0)
return result;
pos += hunk;
buf += hunk;
if (hunk < n) {
i += hunk;
break;
}
}
file->f_pos = pos;
nfs_refresh_inode(inode, &fattr);
return i;
}
