David Gibson dec4ad86c2 hugepage: fix broken check for offset alignment in hugepage mappings ... For hugepage mappings, the file offset, like the address and size, needs to be aligned to the size of a hugepage. In commit 68589bc353, the check for this was moved into prepare_hugepage_range() along with the address and size checks. But since BenH's rework of the get_unmapped_area() paths leading up to commit 4b1d89290b, prepare_hugepage_range() is only called for MAP_FIXED mappings, not for other mappings. This means we're no longer ever checking for an aligned offset - I've confirmed that mmap() will (apparently) succeed with a misaligned offset on both powerpc and i386 at least. This patch restores the check, removing it from prepare_hugepage_range() and putting it back into hugetlbfs_file_mmap(). I'm putting it there, rather than in the get_unmapped_area() path so it only needs to go in one place, than separately in the half-dozen or so arch-specific implementations of hugetlb_get_unmapped_area(). Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Cc: Adam Litke <agl@us.ibm.com> Cc: Andi Kleen <ak@suse.de> Cc: "David S. Miller" <davem@davemloft.net> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2007-08-31 01:42:23 -07:00
..
contig.c	[IA64] Quicklist support for IA64	2007-05-11 09:40:00 -07:00
discontig.c	[IA64] spelling fixes: arch/ia64/	2007-05-11 14:55:43 -07:00
extable.c	Remove obsolete #include <linux/config.h>	2006-06-30 19:25:36 +02:00
fault.c	[IA64] Failure to grow RBS	2007-08-16 10:30:46 -07:00
hugetlbpage.c	hugepage: fix broken check for offset alignment in hugepage mappings	2007-08-31 01:42:23 -07:00
init.c	[IA64] Quicklist support for IA64	2007-05-11 09:40:00 -07:00
ioremap.c	[IA64] make ioremap avoid unsupported attributes	2007-03-30 09:37:41 -07:00
Makefile	[PATCH] ia64: ioremap: check EFI for valid memory attributes	2006-03-26 08:56:54 -08:00
numa.c	[PATCH] hot-add-mem x86_64: memory_add_physaddr_to_nid node fixup	2006-10-01 00:39:18 -07:00
tlb.c	[IA64] silence GCC ia64 unused variable warnings	2007-07-11 11:40:42 -07:00