diff options
Diffstat (limited to 'fs/9p/vfs_addr.c')
| -rw-r--r-- | fs/9p/vfs_addr.c | 21 |
1 files changed, 10 insertions, 11 deletions
diff --git a/fs/9p/vfs_addr.c b/fs/9p/vfs_addr.c index afe3225aaf36..2e38f9a5b472 100644 --- a/fs/9p/vfs_addr.c +++ b/fs/9p/vfs_addr.c @@ -251,21 +251,20 @@ static ssize_t v9fs_direct_IO(int rw, struct kiocb *iocb, struct iov_iter *iter, loff_t pos) { struct file *file = iocb->ki_filp; - if (rw == WRITE) { - ssize_t written; - int err = 0; - - written = p9_client_write(file->private_data, pos, iter, &err); - if (written) { + ssize_t n; + int err = 0; + if (rw & WRITE) { + n = p9_client_write(file->private_data, pos, iter, &err); + if (n) { struct inode *inode = file_inode(file); loff_t i_size = i_size_read(inode); - if (pos + written > i_size) - inode_add_bytes(inode, pos + written - i_size); - return written; + if (pos + n > i_size) + inode_add_bytes(inode, pos + n - i_size); } - return err; + } else { + n = p9_client_read(file->private_data, pos, iter, &err); } - return -EINVAL; + return n ? n : err; } static int v9fs_write_begin(struct file *filp, struct address_space *mapping, |