diff options
Diffstat (limited to 'block/Kconfig.iosched')
| -rw-r--r-- | block/Kconfig.iosched | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/block/Kconfig.iosched b/block/Kconfig.iosched index 3199b76..19c873e 100644 --- a/block/Kconfig.iosched +++ b/block/Kconfig.iosched @@ -21,6 +21,16 @@ config IOSCHED_DEADLINE a new point in the service tree and doing a batch of IO from there in case of expiry. +config IOSCHED_ROW + tristate "ROW I/O scheduler" + ---help--- + The ROW I/O scheduler gives priority to READ requests over the + WRITE requests when dispatching, without starving WRITE requests. + Requests are kept in priority queues. Dispatching is done in a RR + manner when the dispatch quantum for each queue is calculated + according to queue priority. + Most suitable for mobile devices. + config IOSCHED_CFQ tristate "CFQ I/O scheduler" # If BLK_CGROUP is a module, CFQ has to be built as module. @@ -53,6 +63,16 @@ choice config DEFAULT_DEADLINE bool "Deadline" if IOSCHED_DEADLINE=y + config DEFAULT_ROW + bool "ROW" if IOSCHED_ROW=y + help + The ROW I/O scheduler gives priority to READ requests + over the WRITE requests when dispatching, without starving + WRITE requests. Requests are kept in priority queues. + Dispatching is done in a RR manner when the dispatch quantum + for each queue is defined according to queue priority. + Most suitable for mobile devices. + config DEFAULT_CFQ bool "CFQ" if IOSCHED_CFQ=y @@ -64,6 +84,7 @@ endchoice config DEFAULT_IOSCHED string default "deadline" if DEFAULT_DEADLINE + default "row" if DEFAULT_ROW default "cfq" if DEFAULT_CFQ default "noop" if DEFAULT_NOOP |