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sparc_brk() is not needed anymore

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the checks it's doing are duplicated in sys_brk() and failing
them early makes no sense, AFAICT.

Acked-by: David S. Miller <davem@davemloft.net>
Acked-by: Hugh Dickins <hugh.dickins@tiscali.co.uk>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro
2009-12-03 19:51:02 -05:00
parent 2c6a10161d
commit 05d72faa6d
5 changed files with 3 additions and 25 deletions
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12
arch/sparc/kernel/sys_sparc_64.c
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@ -403,18 +403,6 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
}
}
SYSCALL_DEFINE1(sparc_brk, unsigned long, brk)
{
/* People could try to be nasty and use ta 0x6d in 32bit programs */
if (test_thread_flag(TIF_32BIT) && brk >= STACK_TOP32)
return current->mm->brk;
if (unlikely(straddles_64bit_va_hole(current->mm->brk, brk)))
return current->mm->brk;
return sys_brk(brk);
}
/*
* sys_pipe() is the normal C calling standard for creating
* a pipe. It's not the way unix traditionally does this, though.