The patch titled
revert x86-prevent-kprobes-from-catching-spurious-page-faults
has been added to the -mm tree. Its filename is
revert-x86-prevent-kprobes-from-catching-spurious-page-faults.patch
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See http://userweb.kernel.org/~akpm/stuff/added-to-mm.txt to find
out what to do about this
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: revert x86-prevent-kprobes-from-catching-spurious-page-faults
From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Revert this locally so that linux-next doesn't make a huge mess.
Cc: Masami Hiramatsu <mhiramat@xxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: "H. Peter Anvin" <hpa@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/x86/mm/fault.c | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)
diff -puN arch/x86/mm/fault.c~revert-x86-prevent-kprobes-from-catching-spurious-page-faults arch/x86/mm/fault.c
--- a/arch/x86/mm/fault.c~revert-x86-prevent-kprobes-from-catching-spurious-page-faults
+++ a/arch/x86/mm/fault.c
@@ -603,6 +603,8 @@ void __kprobes do_page_fault(struct pt_r
si_code = SEGV_MAPERR;
+ if (notify_page_fault(regs))
+ return;
if (unlikely(kmmio_fault(regs, address)))
return;
@@ -632,9 +634,6 @@ void __kprobes do_page_fault(struct pt_r
if (spurious_fault(address, error_code))
return;
- /* kprobes don't want to hook the spurious faults. */
- if (notify_page_fault(regs))
- return;
/*
* Don't take the mm semaphore here. If we fixup a prefetch
* fault we could otherwise deadlock.
@@ -642,9 +641,6 @@ void __kprobes do_page_fault(struct pt_r
goto bad_area_nosemaphore;
}
- /* kprobes don't want to hook the spurious faults. */
- if (notify_page_fault(regs))
- return;
/*
* It's safe to allow irq's after cr2 has been saved and the
_
Patches currently in -mm which might be from akpm@xxxxxxxxxxxxxxxxxxxx are
origin.patch
kernel-asyncc-fix-printk-warnings.patch
revert-rlimit-permit-setting-rlimit_nofile-to-rlim_infinity.patch
hp-wmi-fix-error-path-in-hp_wmi_bios_setup.patch
wait-prevent-exclusive-waiter-starvation.patch
sxc-fix-missed-unlock_kernel-on-error-path-in-sx_fw_ioctl.patch
vfs-separate-fmode_pread-fmode_pwrite-into-separate-flags-fix.patch
seq_file-properly-cope-with-pread-fix.patch
i-need-old-gcc.patch
i2c-too-much-compiler-noise.patch
revert-x86-prevent-kprobes-from-catching-spurious-page-faults.patch
linux-next.patch
next-remove-localversion.patch
fix-sparseirq-use-kstat_irqs_cpu-on-non-x86-architectures-too.patch
thinkpad-acpi-split-delayed-leds-stuff-clean-up-code-checkpatch-fixes.patch
x86-define-arch_want_frame_pointers-fix.patch
kernel-auditscc-fix-warning.patch
arch-powerpc-eliminate-double-sizeof-checkpatch-fixes.patch
drivers-consolidate-driver_probe_done-loops-into-one-place-fix.patch
drivers-consolidate-driver_probe_done-loops-into-one-place-checkpatch-fixes.patch
sysfs-reference-sysfs_dirent-from-sysfs-inodes-fix.patch
early-platform-driver-v3-checkpatch-fixes.patch
clocksource-pass-clocksource-to-read-callback.patch
input-bcm5974-declare-alignment-usage-checkpatch-fixes.patch
mtd-rbtx4939-add-mtd-support-fix.patch
pci-quirks-unhide-overflow-device-on-i828675p-pe-chipsets.patch
pci-constify-pci_bus_assign_resources.patch
pci-constify-pci_bus_add_devices.patch
raw-fix-rawctl-compat-ioctls-breakage-on-amd64-and-itanic.patch
ext2-xip-refuse-to-change-xip-flag-during-remount-with-busy-inodes-fix.patch
scsi-dpt_i2o-is-bust-on-ia64.patch
drivers-ata-sata_silc-needs-dmih.patch
net-dont-use-in_atomic-in-gfp_any.patch
documentation-connector-cn_testc-dont-use-gfp_any.patch
nommu-fix-a-number-of-issues-with-the-per-mm-vma-patch.patch
x86-allow-intel_iommu-support-to-be-disabled-by-default-fix.patch
page_fault-retry-with-nopage_retry.patch
page_fault-retry-with-nopage_retry-fix.patch
page_fault-retry-with-nopage_retry-fix-fix.patch
mm-add-proc-controls-for-pdflush-threads-fix.patch
mm-add-proc-controls-for-pdflush-threads-fix-fix.patch
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do_pipe-drop-its-last-user-in-arch-alpha-checkpatch-fixes.patch
epoll-keyed-wakeups-v2-teach-epoll-about-hints-coming-with-the-wakeup-key-checkpatch-fixes.patch
rtc-convert-leap_year-into-an-inline.patch
rtc-add-platform-driver-for-efi-fix.patch
drivers-video-uvesafbc-dont-use-gfp_any.patch
cirrusfb-convert-printks-to-dev_foo-fix.patch
cirrusfb-convert-printks-to-dev_foo-fix-fix2.patch
fbdev-uninline-lock_fb_info.patch
memcg-fix-oom-killer-under-memcg-fix2.patch
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cpuset-fix-allocating-page-cache-slab-object-on-the-unallowed-node-when-memory-spread-is-set.patch
cpuset-fix-allocating-page-cache-slab-object-on-the-unallowed-node-when-memory-spread-is-set-fix-2.patch
pids-document-task_pgrp-task_session-is-not-safe-without-tasklist-rcu-fix.patch
nbd-add-locking-to-nbd_ioctl-checkpatch-fixes.patch
nbd-add-locking-to-nbd_ioctl-fix.patch
kexec-add-dmesg-log-symbols-to-proc-vmcoreinfo-lists-fix.patch
kexec-add-dmesg-log-symbols-to-proc-vmcoreinfo-lists-fix-fix.patch
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kexec-add-dmesg-log-symbols-to-proc-vmcoreinfo-lists-fix-fix-fix-checkpatch-fixes-cleanup.patch
arch-x86-kernel-acpi-cstatec-avoid-using-work_on_cpu.patch
arch-x86-kernel-cpu-cpufreq-acpi-cpufreqc-avoid-using-work_on_cpu.patch
arch-x86-kernel-cpu-mcheck-mce_amd_64c-avoid-using-work_on_cpu.patch
work_on_cpu-rewrite-it-to-create-a-kernel-thread-on-demand.patch
nilfs2-integrated-block-mapping-remove-nilfs-bmap-wrapper-macros-checkpatch-fixes.patch
nilfs2-inode-operations-fix.patch
nilfs2-pathname-operations-fix.patch
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reiser4.patch
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shrink_slab-handle-bad-shrinkers.patch
getblk-handle-2tb-devices.patch
getblk-handle-2tb-devices-fix.patch
undeprecate-pci_find_device.patch
notify_change-callers-must-hold-i_mutex.patch
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