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c4b3c1332f
FS_IOC_GETFSSYSFSPATH ioctl expects sysfs sub-path of a filesystem, the format can be "$FSTYP/$SYSFS_IDENTIFIER" under /sys/fs, it can helps to standardizes exporting sysfs datas across filesystems. This patch wires up FS_IOC_GETFSSYSFSPATH for zonefs, it will output "zonefs/<dev>". Signed-off-by: Liao Chen <liaochen4@huawei.com> Signed-off-by: Damien Le Moal <dlemoal@kernel.org>