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authorDivyesh Shah <dpshah@google.com>2010-04-02 02:01:24 +0400
committerJens Axboe <jens.axboe@oracle.com>2010-04-02 10:44:36 +0400
commit303a3acb2362f16c7e7f4c53b40c2f4b396dc8d5 (patch)
tree7996f28d5659fef44594f7049e30264b16baa62d /block/blk-core.c
parent9a0785b0da561e1e9c6617df85e93ae107a42f18 (diff)
downloadlinux-303a3acb2362f16c7e7f4c53b40c2f4b396dc8d5.tar.xz
blkio: Add io controller stats like
- io_service_time - io_wait_time - io_serviced - io_service_bytes These stats are accumulated per operation type helping us to distinguish between read and write, and sync and async IO. This patch does not increment any of these stats. Signed-off-by: Divyesh Shah<dpshah@google.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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