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| author | Stefan Hajnoczi <stefanha@redhat.com> | 2025-12-01 16:43:29 -0500 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2025-12-04 07:19:26 -0700 |
| commit | 3e2cb9ee76c27f57bfdb7b4753b909594d4fa31a (patch) | |
| tree | 3deb83b6d971b7feab57ddf32b7a856e439ccb95 /tools/lib/python | |
| parent | 22a1ffea5f805dfa21b64d1c7b5fe39c0c78c997 (diff) | |
block: add IOC_PR_READ_RESERVATION ioctl
Add a Persistent Reservations ioctl to read the current reservation.
This calls the pr_ops->read_reservation() function that was previously
added in commit c787f1baa503 ("block: Add PR callouts for read keys and
reservation") but was only used by the in-kernel SCSI target so far.
The IOC_PR_READ_RESERVATION ioctl is necessary so that userspace
applications that rely on Persistent Reservations ioctls have a way of
inspecting the current state. Cluster managers and validation tests need
this functionality.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'tools/lib/python')
0 files changed, 0 insertions, 0 deletions