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    Subject[PATCH 3/3] ensure unique i_ino in filesystems without permanent inode numbers (pipefs)
    pipefs is a rather busy filesystem and so is a good place to start to make
    sure we flush out any performance problems

    Signed-off-by: Jeff Layton <jlayton@redhat.com>

    diff --git a/fs/pipe.c b/fs/pipe.c
    index b1626f2..d74ae65 100644
    --- a/fs/pipe.c
    +++ b/fs/pipe.c
    @@ -845,6 +845,9 @@ static struct inode * get_pipe_inode(voi
    if (!inode)
    goto fail_inode;

    + if (iunique_register(inode, 0))
    + goto fail_iput;
    +
    pipe = alloc_pipe_info(inode);
    if (!pipe)
    goto fail_iput;
    -
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