hugetlbfs: move hugepagesz= parsing to arch independent code

Now that architectures provide arch_hugetlb_valid_size(), parsing of
"hugepagesz=" can be done in architecture independent code.  Create a
single routine to handle hugepagesz= parsing and remove all arch specific
routines.  We can also remove the interface hugetlb_bad_size() as this is
no longer used outside arch independent code.

This also provides consistent behavior of hugetlbfs command line options.
The hugepagesz= option should only be specified once for a specific size,
but some architectures allow multiple instances.  This appears to be more
of an oversight when code was added by some architectures to set up ALL
huge pages sizes.

Signed-off-by: Mike Kravetz <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Tested-by: Sandipan Das <[email protected]>
Reviewed-by: Peter Xu <[email protected]>
Acked-by: Mina Almasry <[email protected]>
Acked-by: Gerald Schaefer <[email protected]>	[s390]
Acked-by: Will Deacon <[email protected]>
Cc: Albert Ou <[email protected]>
Cc: Benjamin Herrenschmidt <[email protected]>
Cc: Catalin Marinas <[email protected]>
Cc: Christian Borntraeger <[email protected]>
Cc: Christophe Leroy <[email protected]>
Cc: Dave Hansen <[email protected]>
Cc: David S. Miller <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jonathan Corbet <[email protected]>
Cc: Longpeng <[email protected]>
Cc: Nitesh Narayan Lal <[email protected]>
Cc: Palmer Dabbelt <[email protected]>
Cc: Paul Mackerras <[email protected]>
Cc: Paul Walmsley <[email protected]>
Cc: Randy Dunlap <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Vasily Gorbik <[email protected]>
Cc: Anders Roxell <[email protected]>
Cc: "Aneesh Kumar K.V" <[email protected]>
Cc: Qian Cai <[email protected]>
Cc: Stephen Rothwell <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Linus Torvalds <[email protected]>

1 files changed, 0 insertions, 22 deletions

diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c
index 24475b73657a..1b1f1ac1869e 100644
--- a/arch/sparc/mm/init_64.c
+++ b/arch/sparc/mm/init_64.c
@@ -397,28 +397,6 @@ bool __init arch_hugetlb_valid_size(unsigned long size)
 
 	return true;
 }
-
-static int __init setup_hugepagesz(char *string)
-{
-	unsigned long long hugepage_size;
-	int rc = 0;
-
-	hugepage_size = memparse(string, &string);
-
-	if (!arch_hugetlb_valid_size((unsigned long)hugepage_size)) {
-		hugetlb_bad_size();
-		pr_err("hugepagesz=%llu not supported by MMU.\n",
-			hugepage_size);
-		goto out;
-	}
-
-	add_huge_page_size(hugepage_size);
-	rc = 1;
-
-out:
-	return rc;
-}
-__setup("hugepagesz=", setup_hugepagesz);
 #endif	/* CONFIG_HUGETLB_PAGE */
 
 void update_mmu_cache(struct vm_area_struct *vma, unsigned long address, pte_t *ptep)