mirror of
https://github.com/ceph/ceph
synced 2024-12-21 02:42:48 +00:00
153af6b90a
The block layer used to not enforce ioctl(BLKROSET) and set_disk_ro(). This has been fixed in 4.16-rc1. Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
294 lines
8.0 KiB
Raku
294 lines
8.0 KiB
Raku
|
|
Setup
|
|
=====
|
|
|
|
$ rbd create --size 10 img
|
|
$ rbd snap create img@snap
|
|
$ rbd create --size 1 imgpart
|
|
$ DEV=$(sudo rbd map imgpart)
|
|
$ cat <<EOF | sudo sfdisk $DEV >/dev/null 2>&1
|
|
> unit: sectors
|
|
> /dev/rbd0p1 : start= 512, size= 512, Id=83
|
|
> /dev/rbd0p2 : start= 1024, size= 512, Id=83
|
|
> EOF
|
|
$ sudo rbd unmap $DEV
|
|
$ rbd snap create imgpart@snap
|
|
|
|
|
|
Image HEAD
|
|
==========
|
|
|
|
R/W, unpartitioned:
|
|
|
|
$ DEV=$(sudo rbd map img)
|
|
$ blockdev --getro $DEV
|
|
0
|
|
$ dd if=/dev/urandom of=$DEV bs=1k seek=1 count=1 status=none
|
|
$ blkdiscard $DEV
|
|
$ blockdev --setro $DEV
|
|
.*BLKROSET: Permission denied (re)
|
|
[1]
|
|
$ sudo blockdev --setro $DEV
|
|
$ blockdev --getro $DEV
|
|
1
|
|
$ dd if=/dev/urandom of=$DEV bs=1k seek=1 count=1 status=none
|
|
dd: error writing '/dev/rbd?': Operation not permitted (glob)
|
|
[1]
|
|
$ blkdiscard $DEV
|
|
blkdiscard: /dev/rbd?: BLKDISCARD ioctl failed: Operation not permitted (glob)
|
|
[1]
|
|
$ blockdev --setrw $DEV
|
|
.*BLKROSET: Permission denied (re)
|
|
[1]
|
|
$ sudo blockdev --setrw $DEV
|
|
$ blockdev --getro $DEV
|
|
0
|
|
$ dd if=/dev/urandom of=$DEV bs=1k seek=1 count=1 status=none
|
|
$ blkdiscard $DEV
|
|
$ sudo rbd unmap $DEV
|
|
|
|
R/W, partitioned:
|
|
|
|
$ DEV=$(sudo rbd map imgpart)
|
|
$ udevadm settle
|
|
$ blockdev --getro ${DEV}p1
|
|
0
|
|
$ blockdev --getro ${DEV}p2
|
|
0
|
|
$ dd if=/dev/urandom of=${DEV}p1 bs=1k seek=1 count=1 status=none
|
|
$ blkdiscard ${DEV}p1
|
|
$ dd if=/dev/urandom of=${DEV}p2 bs=1k seek=1 count=1 status=none
|
|
$ blkdiscard ${DEV}p2
|
|
$ blockdev --setro ${DEV}p1
|
|
.*BLKROSET: Permission denied (re)
|
|
[1]
|
|
$ sudo blockdev --setro ${DEV}p1
|
|
$ blockdev --getro ${DEV}p1
|
|
1
|
|
$ blockdev --getro ${DEV}p2
|
|
0
|
|
$ dd if=/dev/urandom of=${DEV}p1 bs=1k seek=1 count=1 status=none
|
|
dd: error writing '/dev/rbd?p1': Operation not permitted (glob)
|
|
[1]
|
|
$ blkdiscard ${DEV}p1
|
|
blkdiscard: /dev/rbd?p1: BLKDISCARD ioctl failed: Operation not permitted (glob)
|
|
[1]
|
|
$ dd if=/dev/urandom of=${DEV}p2 bs=1k seek=1 count=1 status=none
|
|
$ blkdiscard ${DEV}p2
|
|
$ blockdev --setrw ${DEV}p1
|
|
.*BLKROSET: Permission denied (re)
|
|
[1]
|
|
$ sudo blockdev --setrw ${DEV}p1
|
|
$ blockdev --getro ${DEV}p1
|
|
0
|
|
$ blockdev --getro ${DEV}p2
|
|
0
|
|
$ dd if=/dev/urandom of=${DEV}p1 bs=1k seek=1 count=1 status=none
|
|
$ blkdiscard ${DEV}p1
|
|
$ dd if=/dev/urandom of=${DEV}p2 bs=1k seek=1 count=1 status=none
|
|
$ blkdiscard ${DEV}p2
|
|
$ sudo rbd unmap $DEV
|
|
|
|
$ DEV=$(sudo rbd map imgpart)
|
|
$ udevadm settle
|
|
$ blockdev --getro ${DEV}p1
|
|
0
|
|
$ blockdev --getro ${DEV}p2
|
|
0
|
|
$ dd if=/dev/urandom of=${DEV}p1 bs=1k seek=1 count=1 status=none
|
|
$ blkdiscard ${DEV}p1
|
|
$ dd if=/dev/urandom of=${DEV}p2 bs=1k seek=1 count=1 status=none
|
|
$ blkdiscard ${DEV}p2
|
|
$ blockdev --setro ${DEV}p2
|
|
.*BLKROSET: Permission denied (re)
|
|
[1]
|
|
$ sudo blockdev --setro ${DEV}p2
|
|
$ blockdev --getro ${DEV}p1
|
|
0
|
|
$ blockdev --getro ${DEV}p2
|
|
1
|
|
$ dd if=/dev/urandom of=${DEV}p1 bs=1k seek=1 count=1 status=none
|
|
$ blkdiscard ${DEV}p1
|
|
$ dd if=/dev/urandom of=${DEV}p2 bs=1k seek=1 count=1 status=none
|
|
dd: error writing '/dev/rbd?p2': Operation not permitted (glob)
|
|
[1]
|
|
$ blkdiscard ${DEV}p2
|
|
blkdiscard: /dev/rbd?p2: BLKDISCARD ioctl failed: Operation not permitted (glob)
|
|
[1]
|
|
$ blockdev --setrw ${DEV}p2
|
|
.*BLKROSET: Permission denied (re)
|
|
[1]
|
|
$ sudo blockdev --setrw ${DEV}p2
|
|
$ blockdev --getro ${DEV}p1
|
|
0
|
|
$ blockdev --getro ${DEV}p2
|
|
0
|
|
$ dd if=/dev/urandom of=${DEV}p1 bs=1k seek=1 count=1 status=none
|
|
$ blkdiscard ${DEV}p1
|
|
$ dd if=/dev/urandom of=${DEV}p2 bs=1k seek=1 count=1 status=none
|
|
$ blkdiscard ${DEV}p2
|
|
$ sudo rbd unmap $DEV
|
|
|
|
R/O, unpartitioned:
|
|
|
|
$ DEV=$(sudo rbd map --read-only img)
|
|
$ blockdev --getro $DEV
|
|
1
|
|
$ dd if=/dev/urandom of=$DEV bs=1k seek=1 count=1 status=none
|
|
dd: error writing '/dev/rbd?': Operation not permitted (glob)
|
|
[1]
|
|
$ blkdiscard $DEV
|
|
blkdiscard: /dev/rbd?: BLKDISCARD ioctl failed: Operation not permitted (glob)
|
|
[1]
|
|
$ blockdev --setrw $DEV
|
|
.*BLKROSET: Permission denied (re)
|
|
[1]
|
|
$ sudo blockdev --setrw $DEV
|
|
$ blockdev --getro $DEV
|
|
0
|
|
$ dd if=/dev/urandom of=$DEV bs=1k seek=1 count=1 status=none
|
|
$ blkdiscard $DEV
|
|
$ sudo rbd unmap $DEV
|
|
|
|
R/O, partitioned:
|
|
|
|
$ DEV=$(sudo rbd map --read-only imgpart)
|
|
$ udevadm settle
|
|
$ blockdev --getro ${DEV}p1
|
|
1
|
|
$ blockdev --getro ${DEV}p2
|
|
1
|
|
$ dd if=/dev/urandom of=${DEV}p1 bs=1k seek=1 count=1 status=none
|
|
dd: error writing '/dev/rbd?p1': Operation not permitted (glob)
|
|
[1]
|
|
$ blkdiscard ${DEV}p1
|
|
blkdiscard: /dev/rbd?p1: BLKDISCARD ioctl failed: Operation not permitted (glob)
|
|
[1]
|
|
$ dd if=/dev/urandom of=${DEV}p2 bs=1k seek=1 count=1 status=none
|
|
dd: error writing '/dev/rbd?p2': Operation not permitted (glob)
|
|
[1]
|
|
$ blkdiscard ${DEV}p2
|
|
blkdiscard: /dev/rbd?p2: BLKDISCARD ioctl failed: Operation not permitted (glob)
|
|
[1]
|
|
$ blockdev --setrw ${DEV}p1
|
|
.*BLKROSET: Permission denied (re)
|
|
[1]
|
|
$ sudo blockdev --setrw ${DEV}p1
|
|
$ blockdev --setrw ${DEV}p2
|
|
.*BLKROSET: Permission denied (re)
|
|
[1]
|
|
$ sudo blockdev --setrw ${DEV}p2
|
|
$ blockdev --getro ${DEV}p1
|
|
0
|
|
$ blockdev --getro ${DEV}p2
|
|
0
|
|
$ dd if=/dev/urandom of=${DEV}p1 bs=1k seek=1 count=1 status=none
|
|
$ blkdiscard ${DEV}p1
|
|
$ dd if=/dev/urandom of=${DEV}p2 bs=1k seek=1 count=1 status=none
|
|
$ blkdiscard ${DEV}p2
|
|
$ sudo rbd unmap $DEV
|
|
|
|
|
|
Image snapshot
|
|
==============
|
|
|
|
Unpartitioned:
|
|
|
|
$ DEV=$(sudo rbd map img@snap)
|
|
$ blockdev --getro $DEV
|
|
1
|
|
$ dd if=/dev/urandom of=$DEV bs=1k seek=1 count=1 status=none
|
|
dd: error writing '/dev/rbd?': Operation not permitted (glob)
|
|
[1]
|
|
$ blkdiscard $DEV
|
|
blkdiscard: /dev/rbd?: BLKDISCARD ioctl failed: Operation not permitted (glob)
|
|
[1]
|
|
$ blockdev --setrw $DEV
|
|
.*BLKROSET: Permission denied (re)
|
|
[1]
|
|
$ sudo blockdev --setrw $DEV
|
|
.*BLKROSET: Read-only file system (re)
|
|
[1]
|
|
$ blockdev --getro $DEV
|
|
1
|
|
$ dd if=/dev/urandom of=$DEV bs=1k seek=1 count=1 status=none
|
|
dd: error writing '/dev/rbd?': Operation not permitted (glob)
|
|
[1]
|
|
$ blkdiscard $DEV
|
|
blkdiscard: /dev/rbd?: BLKDISCARD ioctl failed: Operation not permitted (glob)
|
|
[1]
|
|
$ sudo rbd unmap $DEV
|
|
|
|
Partitioned:
|
|
|
|
$ DEV=$(sudo rbd map imgpart@snap)
|
|
$ udevadm settle
|
|
$ blockdev --getro ${DEV}p1
|
|
1
|
|
$ blockdev --getro ${DEV}p2
|
|
1
|
|
$ dd if=/dev/urandom of=${DEV}p1 bs=1k seek=1 count=1 status=none
|
|
dd: error writing '/dev/rbd?p1': Operation not permitted (glob)
|
|
[1]
|
|
$ blkdiscard ${DEV}p1
|
|
blkdiscard: /dev/rbd?p1: BLKDISCARD ioctl failed: Operation not permitted (glob)
|
|
[1]
|
|
$ dd if=/dev/urandom of=${DEV}p2 bs=1k seek=1 count=1 status=none
|
|
dd: error writing '/dev/rbd?p2': Operation not permitted (glob)
|
|
[1]
|
|
$ blkdiscard ${DEV}p2
|
|
blkdiscard: /dev/rbd?p2: BLKDISCARD ioctl failed: Operation not permitted (glob)
|
|
[1]
|
|
$ blockdev --setrw ${DEV}p1
|
|
.*BLKROSET: Permission denied (re)
|
|
[1]
|
|
$ sudo blockdev --setrw ${DEV}p1
|
|
.*BLKROSET: Read-only file system (re)
|
|
[1]
|
|
$ blockdev --setrw ${DEV}p2
|
|
.*BLKROSET: Permission denied (re)
|
|
[1]
|
|
$ sudo blockdev --setrw ${DEV}p2
|
|
.*BLKROSET: Read-only file system (re)
|
|
[1]
|
|
$ blockdev --getro ${DEV}p1
|
|
1
|
|
$ blockdev --getro ${DEV}p2
|
|
1
|
|
$ dd if=/dev/urandom of=${DEV}p1 bs=1k seek=1 count=1 status=none
|
|
dd: error writing '/dev/rbd?p1': Operation not permitted (glob)
|
|
[1]
|
|
$ blkdiscard ${DEV}p1
|
|
blkdiscard: /dev/rbd?p1: BLKDISCARD ioctl failed: Operation not permitted (glob)
|
|
[1]
|
|
$ dd if=/dev/urandom of=${DEV}p2 bs=1k seek=1 count=1 status=none
|
|
dd: error writing '/dev/rbd?p2': Operation not permitted (glob)
|
|
[1]
|
|
$ blkdiscard ${DEV}p2
|
|
blkdiscard: /dev/rbd?p2: BLKDISCARD ioctl failed: Operation not permitted (glob)
|
|
[1]
|
|
$ sudo rbd unmap $DEV
|
|
|
|
|
|
rw -> ro with open_count > 0
|
|
============================
|
|
|
|
$ DEV=$(sudo rbd map img)
|
|
$ { sleep 10; sudo blockdev --setro $DEV; } &
|
|
$ dd if=/dev/urandom of=$DEV bs=1k oflag=direct status=noxfer
|
|
dd: error writing '/dev/rbd?': Operation not permitted (glob)
|
|
[1-9]\d*\+0 records in (re)
|
|
[1-9]\d*\+0 records out (re)
|
|
[1]
|
|
$ sudo rbd unmap $DEV
|
|
|
|
|
|
Teardown
|
|
========
|
|
|
|
$ rbd snap purge imgpart >/dev/null 2>&1
|
|
$ rbd rm imgpart >/dev/null 2>&1
|
|
$ rbd snap purge img >/dev/null 2>&1
|
|
$ rbd rm img >/dev/null 2>&1
|
|
|