[tip:tracing/ftrace] doc: add trace_buf_size description to kernel-parameters.txt

[KOSAKI Motohiro]

Commit-ID:  631595fbf4aeac260e664a8a002897e4db6a50dd
Gitweb:     http://git.kernel.org/tip/631595fbf4aeac260e664a8a002897e4db6a50dd
Author:     "KOSAKI Motohiro" <kosaki.motohiro@xxxxxxxxxxxxxx>
AuthorDate: Tue, 10 Mar 2009 13:57:10 +0900
Commit:     Ingo Molnar <mingo@xxxxxxx>
CommitDate: Tue, 10 Mar 2009 10:11:49 +0100

doc: add trace_buf_size description to kernel-parameters.txt

from early boot tracing view, trace_buf_size parameter is important.
it should be documented.

Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx>
LKML-Reference: <20090310135200.A48B.A69D9226@xxxxxxxxxxxxxx>
Signed-off-by: Ingo Molnar <mingo@xxxxxxx>


---
 Documentation/kernel-parameters.txt |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 454f42b..7643483 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -2344,6 +2344,8 @@ and is between 256 and 4096 characters. It is defined in the file
 
 	tp720=		[HW,PS2]
 
+	trace_buf_size=nn[KMG] [ftrace] will set tracing buffer size.
+
 	trix=		[HW,OSS] MediaTrix AudioTrix Pro
 			Format:
 			<io>,<irq>,<dma>,<dma2>,<sb_io>,<sb_irq>,<sb_dma>,<mpu_io>,<mpu_irq>
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