kernel/include/asm-generic/hugetlb.h, branch linux-5.2.y

hugetlb: allow to free gigantic pages regardless of the configuration

2019-05-14T16:47:47Z

On systems without CONTIG_ALLOC activated but that support gigantic pages, boottime reserved gigantic pages can not be freed at all. This patch simply enables the possibility to hand back those pages to memory allocator. Link: http://lkml.kernel.org/r/20190327063626.18421-5-alex@ghiti.fr Signed-off-by: Alexandre Ghiti Acked-by: David S. Miller [sparc] Reviewed-by: Mike Kravetz Cc: Andy Lutomirsky Cc: Aneesh Kumar K.V Cc: Benjamin Herrenschmidt Cc: Borislav Petkov Cc: Catalin Marinas Cc: Dave Hansen Cc: Heiko Carstens Cc: "H . Peter Anvin" Cc: Ingo Molnar Cc: Martin Schwidefsky Cc: Michael Ellerman Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Rich Felker Cc: Thomas Gleixner Cc: Vlastimil Babka Cc: Will Deacon Cc: Yoshinori Sato Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

hugetlb: introduce generic version of huge_ptep_get

2018-10-26T23:26:34Z

ia64, mips, parisc, powerpc, sh, sparc, x86 architectures use the same version of huge_ptep_get, so move this generic implementation into asm-generic/hugetlb.h. [arnd@arndb.de: fix ARM 3level page tables] Link: http://lkml.kernel.org/r/20181005161722.904274-1-arnd@arndb.de Link: http://lkml.kernel.org/r/20180920060358.16606-12-alex@ghiti.fr Signed-off-by: Alexandre Ghiti Reviewed-by: Luiz Capitulino Reviewed-by: Mike Kravetz Tested-by: Helge Deller [parisc] Acked-by: Catalin Marinas [arm64] Acked-by: Paul Burton [MIPS] Acked-by: Ingo Molnar [x86] Cc: Arnd Bergmann Cc: Benjamin Herrenschmidt Cc: David S. Miller Cc: Fenghua Yu Cc: Heiko Carstens Cc: H. Peter Anvin Cc: Ingo Molnar Cc: James E.J. Bottomley Cc: James Hogan Cc: Martin Schwidefsky Cc: Michael Ellerman Cc: Paul Mackerras Cc: Ralf Baechle Cc: Rich Felker Cc: Russell King Cc: Thomas Gleixner Cc: Tony Luck Cc: Will Deacon Cc: Yoshinori Sato Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

hugetlb: introduce generic version of huge_ptep_set_access_flags()

2018-10-26T23:26:34Z

arm, ia64, sh, x86 architectures use the same version of huge_ptep_set_access_flags, so move this generic implementation into asm-generic/hugetlb.h. Link: http://lkml.kernel.org/r/20180920060358.16606-11-alex@ghiti.fr Signed-off-by: Alexandre Ghiti Reviewed-by: Luiz Capitulino Reviewed-by: Mike Kravetz Tested-by: Helge Deller [parisc] Acked-by: Catalin Marinas [arm64] Acked-by: Paul Burton [MIPS] Acked-by: Ingo Molnar [x86] Cc: Arnd Bergmann Cc: Benjamin Herrenschmidt Cc: David S. Miller Cc: Fenghua Yu Cc: Heiko Carstens Cc: H. Peter Anvin Cc: Ingo Molnar Cc: James E.J. Bottomley Cc: James Hogan Cc: Martin Schwidefsky Cc: Michael Ellerman Cc: Paul Mackerras Cc: Ralf Baechle Cc: Rich Felker Cc: Russell King Cc: Thomas Gleixner Cc: Tony Luck Cc: Will Deacon Cc: Yoshinori Sato Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

hugetlb: introduce generic version of huge_ptep_set_wrprotect()

2018-10-26T23:26:34Z

arm, ia64, mips, powerpc, sh, x86 architectures use the same version of huge_ptep_set_wrprotect, so move this generic implementation into asm-generic/hugetlb.h. Link: http://lkml.kernel.org/r/20180920060358.16606-10-alex@ghiti.fr Signed-off-by: Alexandre Ghiti Reviewed-by: Luiz Capitulino Reviewed-by: Mike Kravetz Tested-by: Helge Deller [parisc] Acked-by: Catalin Marinas [arm64] Acked-by: Paul Burton [MIPS] Acked-by: Ingo Molnar [x86] Cc: Arnd Bergmann Cc: Benjamin Herrenschmidt Cc: David S. Miller Cc: Fenghua Yu Cc: Heiko Carstens Cc: H. Peter Anvin Cc: Ingo Molnar Cc: James E.J. Bottomley Cc: James Hogan Cc: Martin Schwidefsky Cc: Michael Ellerman Cc: Paul Mackerras Cc: Ralf Baechle Cc: Rich Felker Cc: Russell King Cc: Thomas Gleixner Cc: Tony Luck Cc: Will Deacon Cc: Yoshinori Sato Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

hugetlb: introduce generic version of prepare_hugepage_range

2018-10-26T23:26:34Z

arm, arm64, powerpc, sparc, x86 architectures use the same version of prepare_hugepage_range, so move this generic implementation into asm-generic/hugetlb.h. Link: http://lkml.kernel.org/r/20180920060358.16606-9-alex@ghiti.fr Signed-off-by: Alexandre Ghiti Reviewed-by: Luiz Capitulino Reviewed-by: Mike Kravetz Tested-by: Helge Deller [parisc] Acked-by: Catalin Marinas [arm64] Acked-by: Paul Burton [MIPS] Acked-by: Ingo Molnar [x86] Cc: Arnd Bergmann Cc: Benjamin Herrenschmidt Cc: David S. Miller Cc: Fenghua Yu Cc: Heiko Carstens Cc: H. Peter Anvin Cc: Ingo Molnar Cc: James E.J. Bottomley Cc: James Hogan Cc: Martin Schwidefsky Cc: Michael Ellerman Cc: Paul Mackerras Cc: Ralf Baechle Cc: Rich Felker Cc: Russell King Cc: Thomas Gleixner Cc: Tony Luck Cc: Will Deacon Cc: Yoshinori Sato Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

hugetlb: introduce generic version of huge_pte_wrprotect

2018-10-26T23:26:34Z

arm, arm64, ia64, mips, parisc, powerpc, sh, sparc, x86 architectures use the same version of huge_pte_wrprotect, so move this generic implementation into asm-generic/hugetlb.h. Link: http://lkml.kernel.org/r/20180920060358.16606-8-alex@ghiti.fr Signed-off-by: Alexandre Ghiti Reviewed-by: Luiz Capitulino Reviewed-by: Mike Kravetz Tested-by: Helge Deller [parisc] Acked-by: Catalin Marinas [arm64] Acked-by: Paul Burton [MIPS] Acked-by: Ingo Molnar [x86] Cc: Arnd Bergmann Cc: Benjamin Herrenschmidt Cc: David S. Miller Cc: Fenghua Yu Cc: Heiko Carstens Cc: H. Peter Anvin Cc: Ingo Molnar Cc: James E.J. Bottomley Cc: James Hogan Cc: Martin Schwidefsky Cc: Michael Ellerman Cc: Paul Mackerras Cc: Ralf Baechle Cc: Rich Felker Cc: Russell King Cc: Thomas Gleixner Cc: Tony Luck Cc: Will Deacon Cc: Yoshinori Sato Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

hugetlb: introduce generic version of huge_pte_none()

2018-10-26T23:26:34Z

arm, arm64, ia64, mips, parisc, powerpc, sh, sparc, x86 architectures use the same version of huge_pte_none, so move this generic implementation into asm-generic/hugetlb.h. Link: http://lkml.kernel.org/r/20180920060358.16606-7-alex@ghiti.fr Signed-off-by: Alexandre Ghiti Reviewed-by: Luiz Capitulino Reviewed-by: Mike Kravetz Tested-by: Helge Deller [parisc] Acked-by: Catalin Marinas [arm64] Acked-by: Paul Burton [MIPS] Acked-by: Ingo Molnar [x86] Cc: Arnd Bergmann Cc: Benjamin Herrenschmidt Cc: David S. Miller Cc: Fenghua Yu Cc: Heiko Carstens Cc: H. Peter Anvin Cc: Ingo Molnar Cc: James E.J. Bottomley Cc: James Hogan Cc: Martin Schwidefsky Cc: Michael Ellerman Cc: Paul Mackerras Cc: Ralf Baechle Cc: Rich Felker Cc: Russell King Cc: Thomas Gleixner Cc: Tony Luck Cc: Will Deacon Cc: Yoshinori Sato Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

hugetlb: introduce generic version of huge_ptep_clear_flush

2018-10-26T23:26:34Z

arm, x86 architectures use the same version of huge_ptep_clear_flush, so move this generic implementation into asm-generic/hugetlb.h. Link: http://lkml.kernel.org/r/20180920060358.16606-6-alex@ghiti.fr Signed-off-by: Alexandre Ghiti Reviewed-by: Luiz Capitulino Reviewed-by: Mike Kravetz Tested-by: Helge Deller [parisc] Acked-by: Catalin Marinas [arm64] Acked-by: Paul Burton [MIPS] Acked-by: Ingo Molnar [x86] Cc: Arnd Bergmann Cc: Benjamin Herrenschmidt Cc: David S. Miller Cc: Fenghua Yu Cc: Heiko Carstens Cc: H. Peter Anvin Cc: Ingo Molnar Cc: James E.J. Bottomley Cc: James Hogan Cc: Martin Schwidefsky Cc: Michael Ellerman Cc: Paul Mackerras Cc: Ralf Baechle Cc: Rich Felker Cc: Russell King Cc: Thomas Gleixner Cc: Tony Luck Cc: Will Deacon Cc: Yoshinori Sato Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

hugetlb: introduce generic version of huge_ptep_get_and_clear()

2018-10-26T23:26:34Z

arm, ia64, sh, x86 architectures use the same version of huge_ptep_get_and_clear, so move this generic implementation into asm-generic/hugetlb.h. Link: http://lkml.kernel.org/r/20180920060358.16606-5-alex@ghiti.fr Signed-off-by: Alexandre Ghiti Reviewed-by: Luiz Capitulino Reviewed-by: Mike Kravetz Tested-by: Helge Deller [parisc] Acked-by: Catalin Marinas [arm64] Acked-by: Paul Burton [MIPS] Acked-by: Ingo Molnar [x86] Cc: Arnd Bergmann Cc: Benjamin Herrenschmidt Cc: David S. Miller Cc: Fenghua Yu Cc: Heiko Carstens Cc: H. Peter Anvin Cc: Ingo Molnar Cc: James E.J. Bottomley Cc: James Hogan Cc: Martin Schwidefsky Cc: Michael Ellerman Cc: Paul Mackerras Cc: Ralf Baechle Cc: Rich Felker Cc: Russell King Cc: Thomas Gleixner Cc: Tony Luck Cc: Will Deacon Cc: Yoshinori Sato Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

hugetlb: introduce generic version of set_huge_pte_at()

2018-10-26T23:26:34Z

arm, ia64, mips, powerpc, sh, x86 architectures use the same version of set_huge_pte_at, so move this generic implementation into asm-generic/hugetlb.h. Link: http://lkml.kernel.org/r/20180920060358.16606-4-alex@ghiti.fr Signed-off-by: Alexandre Ghiti Reviewed-by: Luiz Capitulino Reviewed-by: Mike Kravetz Tested-by: Helge Deller [parisc] Acked-by: Catalin Marinas [arm64] Acked-by: Paul Burton [MIPS] Acked-by: Ingo Molnar [x86] Cc: Arnd Bergmann Cc: Benjamin Herrenschmidt Cc: David S. Miller Cc: Fenghua Yu Cc: Heiko Carstens Cc: H. Peter Anvin Cc: Ingo Molnar Cc: James E.J. Bottomley Cc: James Hogan Cc: Martin Schwidefsky Cc: Michael Ellerman Cc: Paul Mackerras Cc: Ralf Baechle Cc: Rich Felker Cc: Russell King Cc: Thomas Gleixner Cc: Tony Luck Cc: Will Deacon Cc: Yoshinori Sato Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds