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Karol Herbst 8481fdf6dc x86/mm/kmmio: Fix mmiotrace for hugepages 
commit cfa52c0cfa4d727aa3e457bf29aeff296c528a08 upstream.

Because Linux might use bigger pages than the 4K pages to handle those mmio
ioremaps, the kmmio code shouldn't rely on the pade id as it currently does.

Using the memory address instead of the page id lets us look up how big the
page is and what its base address is, so that we won't get a page fault
within the same page twice anymore.

Tested-by: Pierre Moreau <pierre.morrow@free.fr>
Signed-off-by: Karol Herbst <nouveau@karolherbst.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andy Lutomirski <luto@amacapital.net>
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: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Luis R. Rodriguez <mcgrof@suse.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Toshi Kani <toshi.kani@hp.com>
Cc: linux-mm@kvack.org
Cc: linux-x86_64@vger.kernel.org
Cc: nouveau@lists.freedesktop.org
Cc: pq@iki.fi
Cc: rostedt@goodmis.org
Link: http://lkml.kernel.org/r/1456966991-6861-1-git-send-email-nouveau@karolherbst.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-05-04 14:48:52 -07:00
..
boot x86/mm: Fix regression with huge pages on PAE 2015-12-04 09:14:27 +01:00
configs
crypto crypto: sha1-mb - use corrcet pointer while completing jobs 2016-05-04 14:48:44 -07:00
entry x86/entry/compat: Keep TS_COMPAT set during signal delivery 2016-04-12 09:08:32 -07:00
ia32 Merge branch 'x86-headers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2015-11-03 21:05:40 -08:00
include x86/mm/xen: Suppress hugetlbfs in PV guests 2016-05-04 14:48:42 -07:00
kernel x86/apic: Handle zero vector gracefully in clear_vector_irq() 2016-05-04 14:48:49 -07:00
kvm kvm: x86: do not leak guest xcr0 into host interrupt handlers 2016-05-04 14:48:40 -07:00
lguest x86/paravirt: Prevent rtc_cmos platform device init on PV guests 2015-12-19 21:35:13 +01:00
lib x86/uaccess/64: Handle the caching of 4-byte nocache copies properly in __copy_user_nocache() 2016-02-25 12:01:13 -08:00
math-emu Merge branch 'x86-headers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2015-11-03 21:05:40 -08:00
mm x86/mm/kmmio: Fix mmiotrace for hugepages 2016-05-04 14:48:52 -07:00
net ebpf: migrate bpf_prog's flags to bitfield 2015-10-03 05:02:39 -07:00
oprofile
pci Revert "PCI, x86: Implement pcibios_alloc_irq() and pcibios_free_irq()" 2016-04-20 15:42:16 +09:00
platform Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2015-11-03 21:33:18 -08:00
power
purgatory
ras x86/ras/mce_amd_inj: Inject bank 4 errors on the NBC 2015-10-12 16:15:48 +02:00
realmode
tools
um um: Fix pointer cast 2015-12-22 15:31:51 -08:00
video
xen x86/iopl/64: Properly context-switch IOPL on Xen PV 2016-04-12 09:08:38 -07:00
.gitignore
Kbuild
Kconfig x86/microcode: Untangle from BLK_DEV_INITRD 2016-04-12 09:08:32 -07:00
Kconfig.cpu x86/Kconfig/cpus: Fix/complete CPU type help texts 2015-10-21 11:12:56 +02:00
Kconfig.debug x86: don't make DEBUG_WX default to 'y' even with DEBUG_RODATA 2015-11-06 09:12:41 -08:00
Makefile Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2015-11-04 09:11:12 -08:00
Makefile.um
Makefile_32.cpu