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    SubjectRe: [PATCH] AFS: Stop readlink() on AFS crashing because file not passed to afs_readpage()
    Andrew Morton <> wrote:

    > That seems like a rather large bug.


    I've not seen this happen because when a symlink inode is filled in,
    afs_mntpt_check_symlink() is called to see whether it's actually a mountpoint,
    and *that* calls read_mapping_page() correctly to read the contents of the

    The contents of the symlink then hang around in the pagecache, preventing
    further calls to afs_readpage() by page_getlink().

    However, if you wait long enough, as presumably Anton has, the contents of the
    symlink get ejected from the pagecache, but the inode is retained, and thus
    the next readlink will oops.

    > To which kernel version(s) should we apply this?

    kAFS isn't that widely used yet, so only the latest, I think.


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