855265c76e
Maintain statistics per cgroup and export these to user space. These statistics are essential for verifying whether the proper I/O priorities have been assigned to requests. An example of the statistics data with this patch applied: $ cat /sys/fs/cgroup/io.stat 11:2 rbytes=0 wbytes=0 rios=3 wios=0 dbytes=0 dios=0 [NONE] dispatched=0 inserted=0 merged=171 [RT] dispatched=0 inserted=0 merged=0 [BE] dispatched=0 inserted=0 merged=0 [IDLE] dispatched=0 inserted=0 merged=0 8:32 rbytes=2142720 wbytes=0 rios=105 wios=0 dbytes=0 dios=0 [NONE] dispatched=0 inserted=0 merged=171 [RT] dispatched=0 inserted=0 merged=0 [BE] dispatched=0 inserted=0 merged=0 [IDLE] dispatched=0 inserted=0 merged=0 Cc: Damien Le Moal <damien.lemoal@wdc.com> Cc: Hannes Reinecke <hare@suse.de> Cc: Christoph Hellwig <hch@lst.de> Cc: Ming Lei <ming.lei@redhat.com> Cc: Johannes Thumshirn <johannes.thumshirn@wdc.com> Cc: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Bart Van Assche <bvanassche@acm.org> BUG: 187357408 Change-Id: I8d976c62ba2c0397cbb18076f3e61d5ab246cbcf (cherry picked from commit f5dc926252cb31739809f7d27a8cbc9941b4d36d git://git.kernel.dk/linux-block/ for-5.14/block) Signed-off-by: Bart Van Assche <bvanassche@google.com>
44 lines
1.8 KiB
Makefile
44 lines
1.8 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0
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#
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# Makefile for the kernel block layer
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#
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obj-$(CONFIG_BLOCK) := bio.o elevator.o blk-core.o blk-sysfs.o \
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blk-flush.o blk-settings.o blk-ioc.o blk-map.o \
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blk-exec.o blk-merge.o blk-timeout.o \
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blk-lib.o blk-mq.o blk-mq-tag.o blk-stat.o \
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blk-mq-sysfs.o blk-mq-cpumap.o blk-mq-sched.o ioctl.o \
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genhd.o ioprio.o badblocks.o partitions/ blk-rq-qos.o
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obj-$(CONFIG_BOUNCE) += bounce.o
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obj-$(CONFIG_BLK_SCSI_REQUEST) += scsi_ioctl.o
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obj-$(CONFIG_BLK_DEV_BSG) += bsg.o
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obj-$(CONFIG_BLK_DEV_BSGLIB) += bsg-lib.o
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obj-$(CONFIG_BLK_CGROUP) += blk-cgroup.o
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obj-$(CONFIG_BLK_CGROUP_RWSTAT) += blk-cgroup-rwstat.o
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obj-$(CONFIG_BLK_DEV_THROTTLING) += blk-throttle.o
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obj-$(CONFIG_BLK_CGROUP_IOPRIO) += blk-ioprio.o
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obj-$(CONFIG_BLK_CGROUP_IOLATENCY) += blk-iolatency.o
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obj-$(CONFIG_BLK_CGROUP_IOCOST) += blk-iocost.o
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obj-$(CONFIG_MQ_IOSCHED_DEADLINE) += mq-deadline.o
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mq-deadline-y += mq-deadline-main.o
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mq-deadline-$(CONFIG_MQ_IOSCHED_DEADLINE_CGROUP)+= mq-deadline-cgroup.o
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obj-$(CONFIG_MQ_IOSCHED_KYBER) += kyber-iosched.o
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bfq-y := bfq-iosched.o bfq-wf2q.o bfq-cgroup.o
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obj-$(CONFIG_IOSCHED_BFQ) += bfq.o
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obj-$(CONFIG_BLK_CMDLINE_PARSER) += cmdline-parser.o
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obj-$(CONFIG_BLK_DEV_INTEGRITY) += bio-integrity.o blk-integrity.o
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obj-$(CONFIG_BLK_DEV_INTEGRITY_T10) += t10-pi.o
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obj-$(CONFIG_BLK_MQ_PCI) += blk-mq-pci.o
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obj-$(CONFIG_BLK_MQ_VIRTIO) += blk-mq-virtio.o
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obj-$(CONFIG_BLK_MQ_RDMA) += blk-mq-rdma.o
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obj-$(CONFIG_BLK_DEV_ZONED) += blk-zoned.o
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obj-$(CONFIG_BLK_WBT) += blk-wbt.o
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obj-$(CONFIG_BLK_DEBUG_FS) += blk-mq-debugfs.o
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obj-$(CONFIG_BLK_DEBUG_FS_ZONED)+= blk-mq-debugfs-zoned.o
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obj-$(CONFIG_BLK_SED_OPAL) += sed-opal.o
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obj-$(CONFIG_BLK_PM) += blk-pm.o
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obj-$(CONFIG_BLK_INLINE_ENCRYPTION) += keyslot-manager.o blk-crypto.o
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obj-$(CONFIG_BLK_INLINE_ENCRYPTION_FALLBACK) += blk-crypto-fallback.o
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