kernel/git/stable/linux.git/include/asm-sparc64/hugetlb.h, branch master

sparc, sparc64: use arch/sparc/include

2008-07-27T21:00:59+00:00

The majority of this patch was created by the following script: *** ASM=arch/sparc/include/asm mkdir -p $ASM git mv include/asm-sparc64/ftrace.h $ASM git rm include/asm-sparc64/* git mv include/asm-sparc/* $ASM sed -ie 's/asm-sparc64/asm/g' $ASM/* sed -ie 's/asm-sparc/asm/g' $ASM/* *** The rest was an update of the top-level Makefile to use sparc for header files when sparc64 is being build. And a small fixlet to pick up the correct unistd.h from sparc64 code. Signed-off-by: Sam Ravnborg

sparc: copy sparc64 specific files to asm-sparc

2008-07-18T04:44:53+00:00

Used the following script to copy the files: cd include set -e SPARC64=`ls asm-sparc64` for FILE in ${SPARC64}; do if [ -f asm-sparc/$FILE ]; then echo $FILE exist in asm-sparc else git mv asm-sparc64/$FILE asm-sparc/$FILE printf "#include \n" > asm-sparc64/$FILE git add asm-sparc64/$FILE fi done Signed-off-by: Sam Ravnborg

hugetlbfs: common code update for s390

2008-04-28T15:58:25+00:00

Huge ptes have a special type on s390 and cannot be handled with the standard pte functions in certain cases, e.g. because of a different location of the invalid bit. This patch adds some new architecture- specific functions to hugetlb common code, as a prerequisite for the s390 large page support. This won't affect other architectures in functionality, but I need to add some new dummy inline functions to the headers. Acked-by: Martin Schwidefsky Signed-off-by: Gerald Schaefer Cc: Paul Mundt Cc: "Luck, Tony" Cc: Ingo Molnar Cc: Thomas Gleixner Cc: "David S. Miller" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

hugetlbfs: add missing TLB flush to hugetlb_cow()

2008-04-28T15:58:25+00:00

A cow break on a hugetlbfs page with page_count > 1 will set a new pte with set_huge_pte_at(), w/o any tlb flush operation. The old pte will remain in the tlb and subsequent write access to the page will result in a page fault loop, for as long as it may take until the tlb is flushed from somewhere else. This patch introduces an architecture-specific huge_ptep_clear_flush() function, which is called before the the set_huge_pte_at() in hugetlb_cow(). ATTENTION: This is just a nop on all architectures for now, the s390 implementation will come with our large page patch later. Other architectures should define their own huge_ptep_clear_flush() if needed. Acked-by: Martin Schwidefsky Signed-off-by: Gerald Schaefer Cc: Paul Mundt Cc: "Luck, Tony" Cc: Ingo Molnar Cc: Thomas Gleixner Cc: "David S. Miller" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

hugetlbfs: architecture header cleanup

2008-04-28T15:58:25+00:00

This patch moves all architecture functions for hugetlb to architecture header files (include/asm-foo/hugetlb.h) and converts all macros to inline functions. It also removes (!) ARCH_HAS_HUGEPAGE_ONLY_RANGE, ARCH_HAS_HUGETLB_FREE_PGD_RANGE, ARCH_HAS_PREPARE_HUGEPAGE_RANGE, ARCH_HAS_SETCLEAR_HUGE_PTE and ARCH_HAS_HUGETLB_PREFAULT_HOOK. Getting rid of the ARCH_HAS_xxx #ifdef and macro fugliness should increase readability and maintainability, at the price of some code duplication. An asm-generic common part would have reduced the loc, but we would end up with new ARCH_HAS_xxx defines eventually. Acked-by: Martin Schwidefsky Signed-off-by: Gerald Schaefer Cc: Paul Mundt Cc: "Luck, Tony" Cc: Ingo Molnar Cc: Thomas Gleixner Cc: "David S. Miller" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds