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    Subject[RFC][PATCH 08/20] sys_linkat(): elevate write count around vfs_link()
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    Signed-off-by: Dave Hansen <haveblue@us.ibm.com>
    ---

    lxc-dave/fs/namei.c | 5 +++++
    1 files changed, 5 insertions(+)

    diff -puN fs/namei.c~C-elevate-writers-vfs_link-part1 fs/namei.c
    --- lxc/fs/namei.c~C-elevate-writers-vfs_link-part1 2006-06-16 15:58:04.000000000 -0700
    +++ lxc-dave/fs/namei.c 2006-06-16 15:58:04.000000000 -0700
    @@ -2289,7 +2289,12 @@ asmlinkage long sys_linkat(int olddfd, c
    error = PTR_ERR(new_dentry);
    if (IS_ERR(new_dentry))
    goto out_unlock;
    + error = mnt_want_write(nd.mnt);
    + if (error)
    + goto out_dput;
    error = vfs_link(old_nd.dentry, nd.dentry->d_inode, new_dentry);
    + mnt_drop_write(nd.mnt);
    +out_dput:
    dput(new_dentry);
    out_unlock:
    mutex_unlock(&nd.dentry->d_inode->i_mutex);
    _
    -
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