diff options
Diffstat (limited to 'Documentation')
-rw-r--r-- | Documentation/DocBook/tracepoint.tmpl | 13 | ||||
-rw-r--r-- | Documentation/block/biodoc.txt | 4 |
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 | ||
1163 | As mentioned, there is no virtual mapping of a bio. For DMA, this is | 1163 | As mentioned, there is no virtual mapping of a bio. For DMA, this is |
1164 | not a problem as the driver probably never will need a virtual mapping. | 1164 | not a problem as the driver probably never will need a virtual mapping. |
1165 | Instead it needs a bus mapping (pci_map_page for a single segment or | 1165 | Instead it needs a bus mapping (dma_map_page for a single segment or |
1166 | use blk_rq_map_sg for scatter gather) to be able to ship it to the driver. For | 1166 | use dma_map_sg for scatter gather) to be able to ship it to the driver. For |
1167 | PIO drivers (or drivers that need to revert to PIO transfer once in a | 1167 | PIO drivers (or drivers that need to revert to PIO transfer once in a |
1168 | while (IDE for example)), where the CPU is doing the actual data | 1168 | while (IDE for example)), where the CPU is doing the actual data |
1169 | transfer a virtual mapping is needed. If the driver supports highmem I/O, | 1169 | transfer a virtual mapping is needed. If the driver supports highmem I/O, |