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David Gibson 42b88befd6 [PATCH] hugepage: is_aligned_hugepage_range() cleanup ... Quite a long time back, prepare_hugepage_range() replaced is_aligned_hugepage_range() as the callback from mm/mmap.c to arch code to verify if an address range is suitable for a hugepage mapping. is_aligned_hugepage_range() stuck around, but only to implement prepare_hugepage_range() on archs which didn't implement their own. Most archs (everything except ia64 and powerpc) used the same implementation of is_aligned_hugepage_range(). On powerpc, which implements its own prepare_hugepage_range(), the custom version was never used. In addition, "is_aligned_hugepage_range()" was a bad name, because it suggests it returns true iff the given range is a good hugepage range, whereas in fact it returns 0-or-error (so the sense is reversed). This patch cleans up by abolishing is_aligned_hugepage_range(). Instead prepare_hugepage_range() is defined directly. Most archs use the default version, which simply checks the given region is aligned to the size of a hugepage. ia64 and powerpc define custom versions. The ia64 one simply checks that the range is in the correct address space region in addition to being suitably aligned. The powerpc version (just as previously) checks for suitable addresses, and if necessary performs low-level MMU frobbing to set up new areas for use by hugepages. No libhugetlbfs testsuite regressions on ppc64 (POWER5 LPAR). Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Zhang Yanmin <yanmin.zhang@intel.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: William Lee Irwin III <wli@holomorphy.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>		19 years ago
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Kconfig	…
Makefile	…
cache-sh2.c	Linux-2.6.12-rc2	20 years ago
cache-sh3.c	Linux-2.6.12-rc2	20 years ago
cache-sh4.c	…
cache-sh7705.c	Linux-2.6.12-rc2	20 years ago
clear_page.S	Linux-2.6.12-rc2	20 years ago
consistent.c	[PATCH] mm: split highorder pages	19 years ago
copy_page.S	…
extable.c	…
fault-nommu.c	…
fault.c	…
hugetlbpage.c	…
init.c	…
ioremap.c	[PATCH] sh: I/O routine cleanups and ioremap() overhaul	19 years ago
pg-dma.c	Linux-2.6.12-rc2	20 years ago
pg-nommu.c	…
pg-sh4.c	…
pg-sh7705.c	…
tlb-nommu.c	Linux-2.6.12-rc2	20 years ago
tlb-sh3.c	[PATCH] sh: Use pfn_valid() for lazy dcache write-back on SH7705	19 years ago
tlb-sh4.c	…