Re: bug in get_name of export operations?

From: Andrew Morton
Date: Tue Dec 20 2005 - 05:52:10 EST


"Vladimir V. Saveliev" <vs@xxxxxxxxxxx> wrote:
>
> Hello
>
> Please point my error if I am wrong:
>
> fs/exportfs/expfs.c:get_name() opens a directory with:
> file = dentry_open(dget(dentry), NULL, O_RDONLY);
> which results in file where file->f_vfsmnt == NULL.
>
> Then fs/readdir.c:vfs_readdir() and, therefore,
> include/linux/fs.h:file_accessed(file) are called.
> file_accessed() calls fs/inode.c:touch_atime() which tryies to dereference mnt
> which is NULL.
>

I think you're looking at the -mm tree, in which Christoph changed all that
stuff.

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