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Hugh Dickins 3bf5ee9564 [PATCH] freepgt: hugetlb_free_pgd_range ... ia64 and ppc64 had hugetlb_free_pgtables functions which were no longer being called, and it wasn't obvious what to do about them. The ppc64 case turns out to be easy: the associated tables are noted elsewhere and freed later, safe to either skip its hugetlb areas or go through the motions of freeing nothing. Since ia64 does need a special case, restore to ppc64 the special case of skipping them. The ia64 hugetlb case has been broken since pgd_addr_end went in, though it probably appeared to work okay if you just had one such area; in fact it's been broken much longer if you consider a long munmap spanning from another region into the hugetlb region. In the ia64 hugetlb region, more virtual address bits are available than in the other regions, yet the page tables are structured the same way: the page at the bottom is larger. Here we need to scale down each addr before passing it to the standard free_pgd_range. Was about to write a hugely_scaled_down macro, but found htlbpage_to_page already exists for just this purpose. Fixed off-by-one in ia64 is_hugepage_only_range. Uninline free_pgd_range to make it available to ia64. Make sure the vma-gathering loop in free_pgtables cannot join a hugepage_only_range to any other (safe to join huges? probably but don't bother). Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>		20 years ago
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configs	Linux-2.6.12-rc2	20 years ago
dig	Linux-2.6.12-rc2	20 years ago
hp	Linux-2.6.12-rc2	20 years ago
ia32	Linux-2.6.12-rc2	20 years ago
kernel	Linux-2.6.12-rc2	20 years ago
lib	Linux-2.6.12-rc2	20 years ago
mm	[PATCH] freepgt: hugetlb_free_pgd_range	20 years ago
oprofile	Linux-2.6.12-rc2	20 years ago
pci	Linux-2.6.12-rc2	20 years ago
scripts	Linux-2.6.12-rc2	20 years ago
sn	Linux-2.6.12-rc2	20 years ago
Kconfig	Linux-2.6.12-rc2	20 years ago
Kconfig.debug	Linux-2.6.12-rc2	20 years ago
Makefile	Linux-2.6.12-rc2	20 years ago
defconfig	Linux-2.6.12-rc2	20 years ago
install.sh	Linux-2.6.12-rc2	20 years ago
module.lds	Linux-2.6.12-rc2	20 years ago