{
struct file *file = iocb->ki_filp;
ssize_t retval = 0;
- loff_t *ppos = &iocb->ki_pos;
- loff_t pos = *ppos;
size_t count = iov_iter_count(iter);
if (!count)
loff_t size;
size = i_size_read(inode);
- retval = filemap_write_and_wait_range(mapping, pos,
- pos + count - 1);
+ retval = filemap_write_and_wait_range(mapping, iocb->ki_pos,
+ iocb->ki_pos + count - 1);
if (!retval) {
struct iov_iter data = *iter;
- retval = mapping->a_ops->direct_IO(iocb, &data, pos);
+ retval = mapping->a_ops->direct_IO(iocb, &data);
}
if (retval > 0) {
- *ppos = pos + retval;
+ iocb->ki_pos += retval;
iov_iter_advance(iter, retval);
}
* the rest of the read. Buffered reads will not work for
* DAX files, so don't bother trying.
*/
- if (retval < 0 || !iov_iter_count(iter) || *ppos >= size ||
+ if (retval < 0 || !iov_iter_count(iter) || iocb->ki_pos >= size ||
IS_DAX(inode)) {
file_accessed(file);
goto out;
}
}
- retval = do_generic_file_read(file, ppos, iter, retval);
+ retval = do_generic_file_read(file, &iocb->ki_pos, iter, retval);
out:
return retval;
}
EXPORT_SYMBOL(pagecache_write_end);
ssize_t
-generic_file_direct_write(struct kiocb *iocb, struct iov_iter *from, loff_t pos)
+generic_file_direct_write(struct kiocb *iocb, struct iov_iter *from)
{
struct file *file = iocb->ki_filp;
struct address_space *mapping = file->f_mapping;
struct inode *inode = mapping->host;
+ loff_t pos = iocb->ki_pos;
ssize_t written;
size_t write_len;
pgoff_t end;
}
data = *from;
- written = mapping->a_ops->direct_IO(iocb, &data, pos);
+ written = mapping->a_ops->direct_IO(iocb, &data);
/*
* Finally, try again to invalidate clean pages which might have been
if (iocb->ki_flags & IOCB_DIRECT) {
loff_t pos, endbyte;
- written = generic_file_direct_write(iocb, from, iocb->ki_pos);
+ written = generic_file_direct_write(iocb, from);
/*
* If the write stopped short of completing, fall back to
* buffered writes. Some filesystems do this for writes to
ret = __generic_file_write_iter(iocb, from);
inode_unlock(inode);
- if (ret > 0) {
- ssize_t err;
-
- err = generic_write_sync(file, iocb->ki_pos - ret, ret);
- if (err < 0)
- ret = err;
- }
+ if (ret > 0)
+ ret = generic_write_sync(iocb, ret);
return ret;
}
EXPORT_SYMBOL(generic_file_write_iter);