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Documentation: remove anticipatory scheduler info 

Remove anticipatory block I/O scheduler info from Documentation/
since the code has been deleted.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Reported-by: "Robert P. J. Day" <rpjday@crashcourse.ca>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
This commit is contained in:
Randy Dunlap 2010-11-11 12:09:59 +01:00 committed by Jens Axboe
parent 02e031cbc8
commit 17a9e7bbae
3 changed files with 7 additions and 7 deletions
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8
Documentation/block/switching-sched.txt
View File

@ -16,7 +16,7 @@ you can do so by typing:
As of the Linux 2.6.10 kernel, it is now possible to change the
IO scheduler for a given block device on the fly (thus making it possible,
for instance, to set the CFQ scheduler for the system default, but
set a specific device to use the anticipatory or noop schedulers - which
set a specific device to use the deadline or noop schedulers - which
can improve that device's throughput).
To set a specific scheduler, simply do this:
@ -31,7 +31,7 @@ a "cat /sys/block/DEV/queue/scheduler" - the list of valid names
will be displayed, with the currently selected scheduler in brackets:
# cat /sys/block/hda/queue/scheduler
noop anticipatory deadline [cfq]
# echo anticipatory > /sys/block/hda/queue/scheduler
noop deadline [cfq]
# echo deadline > /sys/block/hda/queue/scheduler
# cat /sys/block/hda/queue/scheduler
noop [anticipatory] deadline cfq
noop [deadline] cfq

2
Documentation/kernel-parameters.txt
View File

@ -706,7 +706,7 @@ and is between 256 and 4096 characters. It is defined in the file
arch/x86/kernel/cpu/cpufreq/elanfreq.c.
elevator= [IOSCHED]
Format: {"anticipatory" | "cfq" | "deadline" | "noop"}
Format: {"cfq" | "deadline" | "noop"}
See Documentation/block/as-iosched.txt and
Documentation/block/deadline-iosched.txt for details.

4
Documentation/rbtree.txt
View File

@ -21,8 +21,8 @@ three rotations, respectively, to balance the tree), with slightly slower
To quote Linux Weekly News:
There are a number of red-black trees in use in the kernel.
The anticipatory, deadline, and CFQ I/O schedulers all employ
rbtrees to track requests; the packet CD/DVD driver does the same.
The deadline and CFQ I/O schedulers employ rbtrees to
track requests; the packet CD/DVD driver does the same.
The high-resolution timer code uses an rbtree to organize outstanding
timer requests. The ext3 filesystem tracks directory entries in a
red-black tree. Virtual memory areas (VMAs) are tracked with red-black