Merge tag 'trace-3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux...

[GitHub/mt8127/android_kernel_alcatel_ttab.git] / Documentation / kernel-parameters.txt

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 8ccbf27aead4def123c94eaf0de40e39db40199f..5abc09a93bc274d5c2453b6038a6cfba8f215c13 100644 (file)
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -320,6 +320,13 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
                        on: enable for both 32- and 64-bit processes
                        off: disable for both 32- and 64-bit processes
 
+       alloc_snapshot  [FTRACE]
+                       Allocate the ftrace snapshot buffer on boot up when the
+                       main buffer is allocated. This is handy if debugging
+                       and you need to use tracing_snapshot() on boot up, and
+                       do not want to use tracing_snapshot_alloc() as it needs
+                       to be done where GFP_KERNEL allocations are allowed.
+
        amd_iommu=      [HW,X86-64]
                        Pass parameters to the AMD IOMMU driver in the system.
                        Possible values are: