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-rw-r--r--Documentation/DocBook/tracepoint.tmpl13
-rw-r--r--Documentation/block/biodoc.txt4
2 files changed, 15 insertions, 2 deletions
diff --git a/Documentation/DocBook/tracepoint.tmpl b/Documentation/DocBook/tracepoint.tmpl
index 8bca1d5cec09..e8473eae2a20 100644
--- a/Documentation/DocBook/tracepoint.tmpl
+++ b/Documentation/DocBook/tracepoint.tmpl
@@ -16,6 +16,15 @@
16 </address> 16 </address>
17 </affiliation> 17 </affiliation>
18 </author> 18 </author>
19 <author>
20 <firstname>William</firstname>
21 <surname>Cohen</surname>
22 <affiliation>
23 <address>
24 <email>wcohen@redhat.com</email>
25 </address>
26 </affiliation>
27 </author>
19 </authorgroup> 28 </authorgroup>
20 29
21 <legalnotice> 30 <legalnotice>
@@ -91,4 +100,8 @@
91!Iinclude/trace/events/signal.h 100!Iinclude/trace/events/signal.h
92 </chapter> 101 </chapter>
93 102
103 <chapter id="block">
104 <title>Block IO</title>
105!Iinclude/trace/events/block.h
106 </chapter>
94</book> 107</book>
diff --git a/Documentation/block/biodoc.txt b/Documentation/block/biodoc.txt
index 6fab97ea7e6b..508b5b2b0289 100644
--- a/Documentation/block/biodoc.txt
+++ b/Documentation/block/biodoc.txt
@@ -1162,8 +1162,8 @@ where a driver received a request ala this before:
1162 1162
1163As mentioned, there is no virtual mapping of a bio. For DMA, this is 1163As mentioned, there is no virtual mapping of a bio. For DMA, this is
1164not a problem as the driver probably never will need a virtual mapping. 1164not a problem as the driver probably never will need a virtual mapping.
1165Instead it needs a bus mapping (pci_map_page for a single segment or 1165Instead it needs a bus mapping (dma_map_page for a single segment or
1166use blk_rq_map_sg for scatter gather) to be able to ship it to the driver. For 1166use dma_map_sg for scatter gather) to be able to ship it to the driver. For
1167PIO drivers (or drivers that need to revert to PIO transfer once in a 1167PIO drivers (or drivers that need to revert to PIO transfer once in a
1168while (IDE for example)), where the CPU is doing the actual data 1168while (IDE for example)), where the CPU is doing the actual data
1169transfer a virtual mapping is needed. If the driver supports highmem I/O, 1169transfer a virtual mapping is needed. If the driver supports highmem I/O,