From: Fabio Checconi <fchecconi@xxxxxxxxx> Update Kconfig.iosched and make the related Makefile changes to include kernel-configuration options for BFQ. Signed-off-by: Fabio Checconi <fchecconi@xxxxxxxxx> Signed-off-by: Paolo Valente <paolo.valente@xxxxxxxxxx> Signed-off-by: Arianna Avanzini <avanzini.arianna@xxxxxxxxx> --- block/Kconfig.iosched | 19 +++++++++++++++++++ block/Makefile | 1 + 2 files changed, 20 insertions(+) diff --git a/block/Kconfig.iosched b/block/Kconfig.iosched index 421bef9..8f98cc7 100644 --- a/block/Kconfig.iosched +++ b/block/Kconfig.iosched @@ -39,6 +39,15 @@ config CFQ_GROUP_IOSCHED ---help--- Enable group IO scheduling in CFQ. +config IOSCHED_BFQ + tristate "BFQ I/O scheduler" + default n + ---help--- + The BFQ I/O scheduler tries to distribute bandwidth among all + processes according to their weights. + It aims at distributing the bandwidth as desired, regardless + of the disk parameters and with any workload. + choice prompt "Default I/O scheduler" default DEFAULT_CFQ @@ -52,6 +61,15 @@ choice config DEFAULT_CFQ bool "CFQ" if IOSCHED_CFQ=y + config DEFAULT_BFQ + bool "BFQ" if IOSCHED_BFQ=y + help + Selects BFQ as the default I/O scheduler which will be + used by default for all block devices. + The BFQ I/O scheduler aims at distributing the bandwidth + as desired, regardless of the disk parameters and with + any workload. + config DEFAULT_NOOP bool "No-op" @@ -61,6 +79,7 @@ config DEFAULT_IOSCHED string default "deadline" if DEFAULT_DEADLINE default "cfq" if DEFAULT_CFQ + default "bfq" if DEFAULT_BFQ default "noop" if DEFAULT_NOOP endmenu diff --git a/block/Makefile b/block/Makefile index 20645e8..cbd83fb 100644 --- a/block/Makefile +++ b/block/Makefile @@ -16,6 +16,7 @@ obj-$(CONFIG_BLK_DEV_THROTTLING) += blk-throttle.o obj-$(CONFIG_IOSCHED_NOOP) += noop-iosched.o obj-$(CONFIG_IOSCHED_DEADLINE) += deadline-iosched.o obj-$(CONFIG_IOSCHED_CFQ) += cfq-iosched.o +obj-$(CONFIG_IOSCHED_BFQ) += bfq-iosched.o obj-$(CONFIG_BLOCK_COMPAT) += compat_ioctl.o obj-$(CONFIG_BLK_DEV_INTEGRITY) += blk-integrity.o -- 1.9.2 _______________________________________________ Containers mailing list Containers@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/containers
