diff options
| author | Randy Dunlap <randy.dunlap@oracle.com> | 2010-11-11 12:09:59 +0100 |
|---|---|---|
| committer | Jens Axboe <jaxboe@fusionio.com> | 2010-11-11 12:09:59 +0100 |
| commit | 17a9e7bbae178d1326e4631ab6350a272349c99d (patch) | |
| tree | eaa63823d47367e5d6dea9f12b5a531237152e1f /Documentation | |
| parent | block: remove REQ_HARDBARRIER (diff) | |
| download | linux-17a9e7bbae178d1326e4631ab6350a272349c99d.tar.xz linux-17a9e7bbae178d1326e4631ab6350a272349c99d.zip | |
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>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/block/switching-sched.txt | 8 | ||||
| -rw-r--r-- | Documentation/kernel-parameters.txt | 2 | ||||
| -rw-r--r-- | Documentation/rbtree.txt | 4 |
3 files changed, 7 insertions, 7 deletions
diff --git a/Documentation/block/switching-sched.txt b/Documentation/block/switching-sched.txt index d5af3f630814..71cfbdc0f74d 100644 --- a/Documentation/block/switching-sched.txt +++ b/Documentation/block/switching-sched.txt @@ -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 diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index ed45e9802aa8..92e83e53148f 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -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. diff --git a/Documentation/rbtree.txt b/Documentation/rbtree.txt index 221f38be98f4..19f8278c3854 100644 --- a/Documentation/rbtree.txt +++ b/Documentation/rbtree.txt @@ -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 |