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FreeBSD: Update dataset_kstats for zvols in dev mode

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Previous commit added accounting for geom mode, but not for dev.
In geom mode we actually have GEOM statistics, while in dev mode
additional accounting actually makes more sense.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Signed-off-by: Alexander Motin <mav@FreeBSD.org>
Closes #12097
This commit is contained in:
Alexander Motin 2021-05-26 14:14:26 -04:00 committed by Brian Behlendorf
parent ecebf770c1
commit a7bb2dab4e
1 changed files with 6 additions and 0 deletions
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6
module/os/freebsd/zfs/zvol_os.c
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@ -767,6 +767,7 @@ zvol_cdev_read(struct cdev *dev, struct uio *uio_s, int ioflag)
(zfs_uio_offset(&uio) < 0 || zfs_uio_offset(&uio) > volsize))
return (SET_ERROR(EIO));
ssize_t start_resid = zfs_uio_resid(&uio);
lr = zfs_rangelock_enter(&zv->zv_rangelock, zfs_uio_offset(&uio),
zfs_uio_resid(&uio), RL_READER);
while (zfs_uio_resid(&uio) > 0 && zfs_uio_offset(&uio) < volsize) {
@ -785,6 +786,8 @@ zvol_cdev_read(struct cdev *dev, struct uio *uio_s, int ioflag)
}
}
zfs_rangelock_exit(lr);
int64_t nread = start_resid - zfs_uio_resid(&uio);
dataset_kstats_update_read_kstats(&zv->zv_kstat, nread);
return (error);
}
@ -809,6 +812,7 @@ zvol_cdev_write(struct cdev *dev, struct uio *uio_s, int ioflag)
(zfs_uio_offset(&uio) < 0 || zfs_uio_offset(&uio) > volsize))
return (SET_ERROR(EIO));
ssize_t start_resid = zfs_uio_resid(&uio);
sync = (ioflag & IO_SYNC) ||
(zv->zv_objset->os_sync == ZFS_SYNC_ALWAYS);
@ -840,6 +844,8 @@ zvol_cdev_write(struct cdev *dev, struct uio *uio_s, int ioflag)
break;
}
zfs_rangelock_exit(lr);
int64_t nwritten = start_resid - zfs_uio_resid(&uio);
dataset_kstats_update_write_kstats(&zv->zv_kstat, nwritten);
if (sync)
zil_commit(zv->zv_zilog, ZVOL_OBJ);
rw_exit(&zv->zv_suspend_lock);