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| author | Andy Lutomirski | 2016-07-14 22:22:51 +0200 |
|---|---|---|
| committer | Ingo Molnar | 2016-07-15 10:26:26 +0200 |
| commit | d92fc69ccac4c0a20679fdbdc81b2010685a6f33 (patch) | |
| tree | 7d2f143912fd073f8052980205f05c4a2471aa21 /arch/x86/platform/efi/efi.c | |
| parent | x86/mm/cpa: In populate_pgd(), don't set the PGD entry until it's populated (diff) | |
| download | kernel-qcow2-linux-d92fc69ccac4c0a20679fdbdc81b2010685a6f33.tar.gz kernel-qcow2-linux-d92fc69ccac4c0a20679fdbdc81b2010685a6f33.tar.xz kernel-qcow2-linux-d92fc69ccac4c0a20679fdbdc81b2010685a6f33.zip | |
x86/mm: Remove kernel_unmap_pages_in_pgd() and efi_cleanup_page_tables()
kernel_unmap_pages_in_pgd() is dangerous: if a PGD entry in
init_mm.pgd were to be cleared, callers would need to ensure that
the pgd entry hadn't been propagated to any other pgd.
Its only caller was efi_cleanup_page_tables(), and that, in turn,
was unused, so just delete both functions. This leaves a couple of
other helpers unused, so delete them, too.
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Reviewed-by: Matt Fleming <matt@codeblueprint.co.uk>
Acked-by: Borislav Petkov <bp@suse.de>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-efi@vger.kernel.org
Link: http://lkml.kernel.org/r/77ff20fdde3b75cd393be5559ad8218870520248.1468527351.git.luto@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/platform/efi/efi.c')
| -rw-r--r-- | arch/x86/platform/efi/efi.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c index f93545e7dc54..62986e5fbdba 100644 --- a/arch/x86/platform/efi/efi.c +++ b/arch/x86/platform/efi/efi.c @@ -978,8 +978,6 @@ static void __init __efi_enter_virtual_mode(void) * EFI mixed mode we need all of memory to be accessible when * we pass parameters to the EFI runtime services in the * thunking code. - * - * efi_cleanup_page_tables(__pa(new_memmap), 1 << pg_shift); */ free_pages((unsigned long)new_memmap, pg_shift); |