Tao Ma 1b99973f1c block: Don't count_vm_events for discard bio in submit_bio. ...

In submit_bio, we count vm events by check READ/WRITE.
But actually DISCARD_NOBARRIER also has the WRITE flag set.
It looks as if in blkdev_issue_discard, we also add a
page as the payload and the bio_has_data check isn't enough.
So add another check for discard bio.

Signed-off-by: Tao Ma <tao.ma@oracle.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>

2010-06-24 08:14:22 +02:00

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blk-barrier.c

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blk-cgroup.c

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blk-cgroup.h

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blk-core.c

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blk-exec.c

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blk-integrity.c

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blk-ioc.c

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blk-iopoll.c

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blk-lib.c

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blk-map.c

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blk-merge.c

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blk-settings.c

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blk-softirq.c

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blk-sysfs.c

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blk-tag.c

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blk-timeout.c

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blk.h

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bsg.c

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cfq-iosched.c

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cfq.h

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compat_ioctl.c

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deadline-iosched.c

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elevator.c

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genhd.c

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ioctl.c

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Kconfig

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Kconfig.iosched

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Makefile

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noop-iosched.c

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scsi_ioctl.c

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