On Tue, 2015-08-04 at 09:11 +0800, jiang.bi...@zte.com.cn wrote: > scsi_ioctl: support persistent reserve commands through ioctl for > non-root user. > > Scsi persistent reserve commands need to be used for non-root user in > many scenarios. > EPERM error will be returned by sg_io() when PERSISTENT_RESERVE_OUT > or PERSISTENT_RESERVE_IN command is sent through ioctl() for > non-root user. > Add PERSISTENT_RESERVE_OUT and PERSISTENT_RESERVE_IN into > blk_default_cmd_filter in blk_set_cmd_filter_defaults() to support > persistent reserve commands for non-root user.
I'm very dubious about this: a PR third party reservation can deny access to the local device ... effectively allowing any local user to cause I/O errors on all devices by issuing a bogus third party reservation. What's the reason for allowing non-root use in the first place? James -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
