aboutsummaryrefslogtreecommitdiffstats
path: root/Documentation/block/biodoc.txt
diff options
context:
space:
mode:
Diffstat (limited to 'Documentation/block/biodoc.txt')
-rw-r--r--Documentation/block/biodoc.txt10
1 files changed, 5 insertions, 5 deletions
diff --git a/Documentation/block/biodoc.txt b/Documentation/block/biodoc.txt
index f989a9e839b4..34bf8f60d8f8 100644
--- a/Documentation/block/biodoc.txt
+++ b/Documentation/block/biodoc.txt
@@ -135,7 +135,7 @@ Some new queue property settings:
135 Sets two variables that limit the size of the request. 135 Sets two variables that limit the size of the request.
136 136
137 - The request queue's max_sectors, which is a soft size in 137 - The request queue's max_sectors, which is a soft size in
138 in units of 512 byte sectors, and could be dynamically varied 138 units of 512 byte sectors, and could be dynamically varied
139 by the core kernel. 139 by the core kernel.
140 140
141 - The request queue's max_hw_sectors, which is a hard limit 141 - The request queue's max_hw_sectors, which is a hard limit
@@ -783,7 +783,7 @@ all the outstanding requests. There's a third helper to do that:
783 783
784 blk_queue_invalidate_tags(request_queue_t *q) 784 blk_queue_invalidate_tags(request_queue_t *q)
785 785
786 Clear the internal block tag queue and readd all the pending requests 786 Clear the internal block tag queue and re-add all the pending requests
787 to the request queue. The driver will receive them again on the 787 to the request queue. The driver will receive them again on the
788 next request_fn run, just like it did the first time it encountered 788 next request_fn run, just like it did the first time it encountered
789 them. 789 them.
@@ -890,7 +890,7 @@ Aside:
890 890
891 Kvec i/o: 891 Kvec i/o:
892 892
893 Ben LaHaise's aio code uses a slighly different structure instead 893 Ben LaHaise's aio code uses a slightly different structure instead
894 of kiobufs, called a kvec_cb. This contains an array of <page, offset, len> 894 of kiobufs, called a kvec_cb. This contains an array of <page, offset, len>
895 tuples (very much like the networking code), together with a callback function 895 tuples (very much like the networking code), together with a callback function
896 and data pointer. This is embedded into a brw_cb structure when passed 896 and data pointer. This is embedded into a brw_cb structure when passed
@@ -988,7 +988,7 @@ elevator_exit_fn Allocate and free any elevator specific storage
988 for a queue. 988 for a queue.
989 989
9904.2 Request flows seen by I/O schedulers 9904.2 Request flows seen by I/O schedulers
991All requests seens by I/O schedulers strictly follow one of the following three 991All requests seen by I/O schedulers strictly follow one of the following three
992flows. 992flows.
993 993
994 set_req_fn -> 994 set_req_fn ->
@@ -1203,6 +1203,6 @@ temporarily map a bio into the virtual address space.
1203and Linus' comments - Jan 2001) 1203and Linus' comments - Jan 2001)
12049.2 Discussions about kiobuf and bh design on lkml between sct, linus, alan 12049.2 Discussions about kiobuf and bh design on lkml between sct, linus, alan
1205et al - Feb-March 2001 (many of the initial thoughts that led to bio were 1205et al - Feb-March 2001 (many of the initial thoughts that led to bio were
1206brought up in this discusion thread) 1206brought up in this discussion thread)
12079.3 Discussions on mempool on lkml - Dec 2001. 12079.3 Discussions on mempool on lkml - Dec 2001.
1208 1208