erofs: add support for FS_IOC_GETFSSYSFSPATH

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FS_IOC_GETFSSYSFSPATH ioctl exposes /sys/fs path of a given filesystem,
potentially standarizing sysfs reporting. This patch add support for
FS_IOC_GETFSSYSFSPATH for erofs, "erofs/<dev>" will be outputted for bdev
cases, "erofs/[domain_id,]<fs_id>" will be outputted for fscache cases.

Signed-off-by: Huang Xiaojia <huangxiaojia2@huawei.com>
Link: https://lore.kernel.org/r/20240720082335.441563-1-huangxiaojia2@huawei.com
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>

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Huang Xiaojia 2024-07-20 16:23:35 +08:00 • committed by Gao Xiang

parent 7dc5537c3f

commit 684b290abc

1 changed files with 16 additions and 0 deletions

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fs/erofs/super.c

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