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cuse: switch to iov_iter

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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2015-03-21 09:01:45 -04:00
parent 39c853ebfe
commit cfa86a7412
1 changed files with 10 additions and 17 deletions
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27
fs/fuse/cuse.c
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@ -88,32 +88,23 @@ static struct list_head *cuse_conntbl_head(dev_t devt)
* FUSE file.
*/
static ssize_t cuse_read(struct file *file, char __user *buf, size_t count,
loff_t *ppos)
static ssize_t cuse_read_iter(struct kiocb *kiocb, struct iov_iter *to)
{
struct fuse_io_priv io = { .async = 0, .file = kiocb->ki_filp };
loff_t pos = 0;
struct iovec iov = { .iov_base = buf, .iov_len = count };
struct fuse_io_priv io = { .async = 0, .file = file };
struct iov_iter ii;
iov_iter_init(&ii, READ, &iov, 1, count);
return fuse_direct_io(&io, &ii, &pos, FUSE_DIO_CUSE);
return fuse_direct_io(&io, to, &pos, FUSE_DIO_CUSE);
}
static ssize_t cuse_write(struct file *file, const char __user *buf,
size_t count, loff_t *ppos)
static ssize_t cuse_write_iter(struct kiocb *kiocb, struct iov_iter *from)
{
struct fuse_io_priv io = { .async = 0, .file = kiocb->ki_filp };
loff_t pos = 0;
struct iovec iov = { .iov_base = (void __user *)buf, .iov_len = count };
struct fuse_io_priv io = { .async = 0, .file = file };
struct iov_iter ii;
iov_iter_init(&ii, WRITE, &iov, 1, count);
/*
* No locking or generic_write_checks(), the server is
* responsible for locking and sanity checks.
*/
return fuse_direct_io(&io, &ii, &pos,
return fuse_direct_io(&io, from, &pos,
FUSE_DIO_WRITE | FUSE_DIO_CUSE);
}
@ -186,8 +177,10 @@ static long cuse_file_compat_ioctl(struct file *file, unsigned int cmd,
static const struct file_operations cuse_frontend_fops = {
.owner = THIS_MODULE,
.read = cuse_read,
.write = cuse_write,
.read = new_sync_read,
.write = new_sync_write,
.read_iter = cuse_read_iter,
.write_iter = cuse_write_iter,
.open = cuse_open,
.release = cuse_release,
.unlocked_ioctl = cuse_file_ioctl,