On Wed, 11 Aug 2010 01:52:16 +0100
Al Viro <viro@xxxxxxxxxxxxxxxxxx> wrote:
> Whiskey Tango Fotrot, Over
>
> In Linus' tree we have
> commit 1025774ce411f2bd4b059ad7b53f0003569b74fa
> Author: Christoph Hellwig <hch@xxxxxx>
> Date: Fri Jun 4 11:30:02 2010 +0200
> ...
> diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
> index 4331b3b..4b3ad6a 100644
> --- a/fs/9p/vfs_inode.c
> +++ b/fs/9p/vfs_inode.c
> @@ -896,10 +896,19 @@ static int v9fs_vfs_setattr(struct dentry *dentry, struct
> }
>
> retval = p9_client_wstat(fid, &wstat);
> - if (retval >= 0)
> - retval = inode_setattr(dentry->d_inode, iattr);
> + if (retval < 0)
> + return retval;
> +
> + if ((iattr->ia_valid & ATTR_SIZE) &&
> + iattr->ia_size != i_size_read(dentry->d_inode)) {
> + retval = vmtruncate(dentry->d_inode, iattr->ia_size);
> + if (retval)
> + return retval;
> + }
>
> So what the hell is going on?
That's v9fs_vfs_setattr(). The problem is in the new
v9fs_vfs_setattr_dotl().
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