fs/nfs/callback.h

Source file repositories/reference/linux-study-clean/fs/nfs/callback.h

File Facts

System
Linux kernel
Corpus path
fs/nfs/callback.h
Extension
.h
Size
5029 bytes
Lines
205
Domain
Core OS
Bucket
VFS And Filesystem Core
Inferred role
Core OS: implementation source
Status
source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

Dependency Surface

Detected Declarations

Annotated Snippet

struct cb_process_state {
	struct nfs_client	*clp;
	struct nfs4_slot	*slot;
	struct net		*net;
	u32			minorversion;
	__be32			drc_status;
	unsigned int		referring_calls;
};

struct cb_compound_hdr_arg {
	unsigned int taglen;
	const char *tag;
	unsigned int minorversion;
	unsigned int cb_ident; /* v4.0 callback identifier */
	unsigned nops;
};

struct cb_compound_hdr_res {
	__be32 *status;
	unsigned int taglen;
	const char *tag;
	__be32 *nops;
};

struct cb_getattrargs {
	struct nfs_fh fh;
	uint32_t bitmap[3];
};

struct cb_getattrres {
	__be32 status;
	uint32_t bitmap[3];
	uint64_t size;
	uint64_t change_attr;
	struct timespec64 atime;
	struct timespec64 ctime;
	struct timespec64 mtime;
};

struct cb_recallargs {
	struct nfs_fh fh;
	nfs4_stateid stateid;
	uint32_t truncate;
};

struct referring_call {
	uint32_t			rc_sequenceid;
	uint32_t			rc_slotid;
};

struct referring_call_list {
	struct nfs4_sessionid		rcl_sessionid;
	uint32_t			rcl_nrefcalls;
	struct referring_call 		*rcl_refcalls;
};

struct cb_sequenceargs {
	struct sockaddr			*csa_addr;
	struct nfs4_sessionid		csa_sessionid;
	uint32_t			csa_sequenceid;
	uint32_t			csa_slotid;
	uint32_t			csa_highestslotid;
	uint32_t			csa_cachethis;
	uint32_t			csa_nrclists;
	struct referring_call_list	*csa_rclists;
};

struct cb_sequenceres {
	__be32				csr_status;
	struct nfs4_sessionid		csr_sessionid;
	uint32_t			csr_sequenceid;
	uint32_t			csr_slotid;
	uint32_t			csr_highestslotid;
	uint32_t			csr_target_highestslotid;
};

extern __be32 nfs4_callback_sequence(void *argp, void *resp,
				       struct cb_process_state *cps);

#define RCA4_TYPE_MASK_RDATA_DLG	0
#define RCA4_TYPE_MASK_WDATA_DLG	1
#define RCA4_TYPE_MASK_DIR_DLG         2
#define RCA4_TYPE_MASK_FILE_LAYOUT     3
#define RCA4_TYPE_MASK_BLK_LAYOUT      4
#define RCA4_TYPE_MASK_OBJ_LAYOUT_MIN  8
#define RCA4_TYPE_MASK_OBJ_LAYOUT_MAX  9
#define RCA4_TYPE_MASK_OTHER_LAYOUT_MIN 12
#define RCA4_TYPE_MASK_OTHER_LAYOUT_MAX 15
#define PNFS_FF_RCA4_TYPE_MASK_READ 16
#define PNFS_FF_RCA4_TYPE_MASK_RW 17

Annotation

Implementation Notes