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
..
boot_ioremap.c
discontig.c
extable.c
fault.c	Fix lazy mode vmalloc synchronization for paravirt	2007-08-22 11:10:47 -07:00
highmem.c
hugetlbpage.c	hugepage: fix broken check for offset alignment in hugepage mappings	2007-08-31 01:42:23 -07:00
init.c	Replace CONFIG_SOFTWARE_SUSPEND with CONFIG_HIBERNATION	2007-07-29 16:45:38 -07:00
ioremap.c	i386: fix iounmap's use of vm_struct's size field	2007-07-21 18:37:14 -07:00
Makefile
mmap.c
pageattr.c	x86: Disable CLFLUSH support again	2007-08-11 15:58:13 -07:00
pgtable.c	i386: pgd_{c,d}tor() static	2007-07-21 18:37:12 -07:00