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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */#ifndef _UAPI_PR_H#define _UAPI_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;};
struct pr_read_keys { __u32 generation; __u32 num_keys; __u64 keys_ptr;};
struct pr_read_reservation { __u64 key; __u32 generation; __u32 type;};
#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)#define IOC_PR_READ_KEYS _IOWR('p', 206, struct pr_read_keys)#define IOC_PR_READ_RESERVATION _IOR('p', 207, struct pr_read_reservation)
#define PR_KEYS_MAX (1u << 16)
#endif /* _UAPI_PR_H */