JezK
Edit File: pr.h
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef _PR_H #define _PR_H #include <linux/types.h> enum pr_status { PR_STS_SUCCESS = 0x0, /* * The following error codes are based on SCSI, because the interface * was originally created for it and has existing users. */ /* Generic device failure. */ PR_STS_IOERR = 0x2, PR_STS_RESERVATION_CONFLICT = 0x18, /* Temporary path failure that can be retried. */ PR_STS_RETRY_PATH_FAILURE = 0xe0000, /* The request was failed due to a fast failure timer. */ PR_STS_PATH_FAST_FAILED = 0xf0000, /* The path cannot be reached and has been marked as failed. */ PR_STS_PATH_FAILED = 0x10000, }; enum pr_type { PR_WRITE_EXCLUSIVE = 1, PR_EXCLUSIVE_ACCESS = 2, PR_WRITE_EXCLUSIVE_REG_ONLY = 3, PR_EXCLUSIVE_ACCESS_REG_ONLY = 4, PR_WRITE_EXCLUSIVE_ALL_REGS = 5, PR_EXCLUSIVE_ACCESS_ALL_REGS = 6, }; struct pr_reservation { __u64 key; __u32 type; __u32 flags; }; struct pr_registration { __u64 old_key; __u64 new_key; __u32 flags; __u32 __pad; }; struct pr_preempt { __u64 old_key; __u64 new_key; __u32 type; __u32 flags; }; struct pr_clear { __u64 key; __u32 flags; __u32 __pad; }; #define PR_FL_IGNORE_KEY (1 << 0) /* ignore existing key */ #define IOC_PR_REGISTER _IOW('p', 200, struct pr_registration) #define IOC_PR_RESERVE _IOW('p', 201, struct pr_reservation) #define IOC_PR_RELEASE _IOW('p', 202, struct pr_reservation) #define IOC_PR_PREEMPT _IOW('p', 203, struct pr_preempt) #define IOC_PR_PREEMPT_ABORT _IOW('p', 204, struct pr_preempt) #define IOC_PR_CLEAR _IOW('p', 205, struct pr_clear) #endif /* _PR_H */