• Matthew Wilcox's avatar
    idr: Remove idr_alloc_ext · 460488c5
    Matthew Wilcox authored
    It has no more users, so remove it.  Move idr_alloc() back into idr.c,
    move the guts of idr_alloc_cmn() into idr_alloc_u32(), remove the
    wrappers around idr_get_free_cmn() and rename it to idr_get_free().
    While there is now no interface to allocate IDs larger than a u32,
    the IDR internals remain ready to handle a larger ID should a need arise.
    
    These changes make it possible to provide the guarantee that, if the
    nextid pointer points into the object, the object's ID will be initialised
    before a concurrent lookup can find the object.
    Signed-off-by: default avatarMatthew Wilcox <mawilcox@microsoft.com>
    460488c5
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