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Date: Wed, 14 Dec 2011 12:53:55 -0500 (EST)
Message-Id: <20111214.125355.2114905092680399303.davem@davemloft.net>
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Subject: Re: Sparc-32 doesn't work in 3.1.
From: David Miller <davem@davemloft.net>
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From: Sergei Trofimovich <slyich@gmail.com>
Date: Wed, 14 Dec 2011 20:42:25 +0300

>> ext4_kvmalloc:
> ...
>>         sethi  %hi(___i_page_kernel), %i2      !, tmp112
>>        call    __vmalloc, 0    !
>>         restore %i2, %lo(___i_page_kernel), %o2        ! tmp112,,
> ...
> 
> David: is this code correct? Or it's a compiler bug? I am sparc32 newbie.
> (C source and asm sources of function are in [1])

It is correct, it's a tail call.