1 files changed, 77 insertions, 4 deletions

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 479f33204a37..4df73da11adc 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -829,6 +829,15 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
                         CONFIG_DEBUG_PAGEALLOC, hence this option will not help
                         tracking down these problems.
 
+        debug_pagealloc=
+                        [KNL] When CONFIG_DEBUG_PAGEALLOC is set, this
+                        parameter enables the feature at boot time. In
+                        default, it is disabled. We can avoid allocating huge
+                        chunk of memory for debug pagealloc if we don't enable
+                        it at boot time and the system will work mostly same
+                        with the kernel built without CONFIG_DEBUG_PAGEALLOC.
+                        on: enable the feature
+
         debugpat        [X86] Enable PAT debugging
 
         decnet.addr=    [HW,NET]
@@ -1228,9 +1237,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
                         multiple times interleaved with hugepages= to reserve
                         huge pages of different sizes. Valid pages sizes on
                         x86-64 are 2M (when the CPU supports "pse") and 1G
-                        (when the CPU supports the "pdpe1gb" cpuinfo flag)
-                        Note that 1GB pages can only be allocated at boot time
-                        using hugepages= and not freed afterwards.
+                        (when the CPU supports the "pdpe1gb" cpuinfo flag).
 
         hvc_iucv=       [S390] Number of z/VM IUCV hypervisor console (HVC)
                                terminal devices. Valid values: 0..8
@@ -1369,6 +1376,10 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
                         Formats: { "ima" | "ima-ng" }
                         Default: "ima-ng"
 
+        ima_template_fmt=
+                        [IMA] Define a custom template format.
+                        Format: { "field1|...|fieldN" }
+
         ima.ahash_minsize= [IMA] Minimum file size for asynchronous hash usage
                         Format: <min_file_size>
                         Set the minimal file size for using asynchronous hash.
@@ -1446,6 +1457,18 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
                        disable
                          Do not enable intel_pstate as the default
                          scaling driver for the supported processors
+                       force
+                         Enable intel_pstate on systems that prohibit it by default
+                         in favor of acpi-cpufreq. Forcing the intel_pstate driver
+                         instead of acpi-cpufreq may disable platform features, such
+                         as thermal controls and power capping, that rely on ACPI
+                         P-States information being indicated to OSPM and therefore
+                         should be used with caution. This option does not work with
+                         processors that aren't supported by the intel_pstate driver
+                         or on platforms that use pcc-cpufreq instead of acpi-cpufreq.
+                       no_hwp
+                         Do not enable hardware P state control (HWP)
+                         if available.
 
         intremap=       [X86-64, Intel-IOMMU]
                         on      enable Interrupt Remapping (default)
@@ -2503,12 +2526,21 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
         OSS             [HW,OSS]
                         See Documentation/sound/oss/oss-parameters.txt
 
+        page_owner=     [KNL] Boot-time page_owner enabling option.
+                        Storage of the information about who allocated
+                        each page is disabled in default. With this switch,
+                        we can turn it on.
+                        on: enable the feature
+
         panic=          [KNL] Kernel behaviour on panic: delay <timeout>
                         timeout > 0: seconds before rebooting
                         timeout = 0: wait forever
                         timeout < 0: reboot immediately
                         Format: <timeout>
 
+        panic_on_warn   panic() instead of WARN().  Useful to cause kdump
+                        on a WARN().
+
         crash_kexec_post_notifiers
                         Run kdump after running panic-notifiers and dumping
                         kmsg. This only for the users who doubt kdump always
@@ -2940,6 +2972,13 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
                         quiescent states.  Units are jiffies, minimum
                         value is one, and maximum value is HZ.
 
+        rcutree.kthread_prio=    [KNL,BOOT]
+                        Set the SCHED_FIFO priority of the RCU
+                        per-CPU kthreads (rcuc/N). This value is also
+                        used for the priority of the RCU boost threads
+                        (rcub/N). Valid values are 1-99 and the default
+                        is 1 (the least-favored priority).
+
         rcutree.rcu_nocb_leader_stride= [KNL]
                         Set the number of NOCB kthread groups, which
                         defaults to the square root of the number of
@@ -3089,6 +3128,15 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
                         messages.  Disable with a value less than or equal
                         to zero.
 
+        rcupdate.rcu_self_test= [KNL]
+                        Run the RCU early boot self tests
+
+        rcupdate.rcu_self_test_bh= [KNL]
+                        Run the RCU bh early boot self tests
+
+        rcupdate.rcu_self_test_sched= [KNL]
+                        Run the RCU sched early boot self tests
+
         rdinit=         [KNL]
                         Format: <full_path>
                         Run specified binary instead of /init from the ramdisk,
@@ -3412,6 +3460,13 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
                         neutralize any effect of /proc/sys/kernel/sysrq.
                         Useful for debugging.
 
+        tcpmhash_entries= [KNL,NET]
+                        Set the number of tcp_metrics_hash slots.
+                        Default value is 8192 or 16384 depending on total
+                        ram pages. This is used to specify the TCP metrics
+                        cache size. See Documentation/networking/ip-sysctl.txt
+                        "tcp_no_metrics_save" section for more details.
+
         tdfx=           [HW,DRM]
 
         test_suspend=   [SUSPEND][,N]
@@ -3501,7 +3556,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
                         are saved.
 
         trace_buf_size=nn[KMG]
-                        [FTRACE] will set tracing buffer size.
+                        [FTRACE] will set tracing buffer size on each cpu.
 
         trace_event=[event-list]
                         [FTRACE] Set and start specified trace events in order
@@ -3524,6 +3579,24 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
                         See also Documentation/trace/ftrace.txt "trace options"
                         section.
 
+        tp_printk[FTRACE]
+                        Have the tracepoints sent to printk as well as the
+                        tracing ring buffer. This is useful for early boot up
+                        where the system hangs or reboots and does not give the
+                        option for reading the tracing buffer or performing a
+                        ftrace_dump_on_oops.
+
+                        To turn off having tracepoints sent to printk,
+                         echo 0 > /proc/sys/kernel/tracepoint_printk
+                        Note, echoing 1 into this file without the
+                        tracepoint_printk kernel cmdline option has no effect.
+
+                        ** CAUTION **
+
+                        Having tracepoints sent to printk() and activating high
+                        frequency tracepoints such as irq or sched, can cause
+                        the system to live lock.
+
         traceoff_on_warning
                         [FTRACE] enable this option to disable tracing when a
                         warning is hit. This turns off "tracing_on". Tracing can