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(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205/* SPDX-License-Identifier: GPL-2.0 *//* * linux/fs/nfs/callback.h * * Copyright (C) 2004 Trond Myklebust * * NFSv4 callback definitions */#ifndef __LINUX_FS_NFS_CALLBACK_H#define __LINUX_FS_NFS_CALLBACK_H#include <linux/sunrpc/svc.h>
#define NFS4_CALLBACK 0x40000000#define NFS4_CALLBACK_XDRSIZE 2048#define NFS4_CALLBACK_BUFSIZE (1024 + NFS4_CALLBACK_XDRSIZE)
enum nfs4_callback_procnum { CB_NULL = 0, CB_COMPOUND = 1,};
struct nfs4_slot;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#define RCA4_TYPE_MASK_ALL 0x3f31f
struct cb_recallanyargs { uint32_t craa_objs_to_keep; uint32_t craa_type_mask;};
extern __be32 nfs4_callback_recallany(void *argp, void *resp, struct cb_process_state *cps);
struct cb_recallslotargs { uint32_t crsa_target_highest_slotid;};extern __be32 nfs4_callback_recallslot(void *argp, void *resp, struct cb_process_state *cps);
struct cb_layoutrecallargs { uint32_t cbl_recall_type; uint32_t cbl_layout_type; uint32_t cbl_layoutchanged; union { struct { struct nfs_fh cbl_fh; struct pnfs_layout_range cbl_range; nfs4_stateid cbl_stateid; }; struct nfs_fsid cbl_fsid; };};
extern __be32 nfs4_callback_layoutrecall(void *argp, void *resp, struct cb_process_state *cps);
struct cb_devicenotifyitem { uint32_t cbd_notify_type; uint32_t cbd_layout_type; struct nfs4_deviceid cbd_dev_id; uint32_t cbd_immediate;};
struct cb_devicenotifyargs { uint32_t ndevs; struct cb_devicenotifyitem *devs;};
extern __be32 nfs4_callback_devicenotify(void *argp, void *resp, struct cb_process_state *cps);
struct cb_notify_lock_args { struct nfs_fh cbnl_fh; struct nfs_lowner cbnl_owner; bool cbnl_valid;};
extern __be32 nfs4_callback_notify_lock(void *argp, void *resp, struct cb_process_state *cps);#ifdef CONFIG_NFS_V4_2struct cb_offloadargs { struct nfs_fh coa_fh; nfs4_stateid coa_stateid; uint32_t error; uint64_t wr_count; struct nfs_writeverf wr_writeverf;};
extern __be32 nfs4_callback_offload(void *args, void *dummy, struct cb_process_state *cps);#endif /* CONFIG_NFS_V4_2 */extern int check_gss_callback_principal(struct nfs_client *, struct svc_rqst *);extern __be32 nfs4_callback_getattr(void *argp, void *resp, struct cb_process_state *cps);extern __be32 nfs4_callback_recall(void *argp, void *resp, struct cb_process_state *cps);#if IS_ENABLED(CONFIG_NFS_V4)extern int nfs_callback_up(u32 minorversion, struct rpc_xprt *xprt);extern void nfs_callback_down(int minorversion, struct net *net, struct rpc_xprt *xprt);#endif /* CONFIG_NFS_V4 *//* * nfs41: Callbacks are expected to not cause substantial latency, * so we limit their concurrency to 1 by setting up the maximum number * of slots for the backchannel. */#define NFS41_BC_MIN_CALLBACKS 1#define NFS41_BC_MAX_CALLBACKS 1
#define NFS4_MIN_NR_CALLBACK_THREADS 1
extern unsigned int nfs_callback_set_tcpport;extern unsigned short nfs_callback_nr_threads;
#endif /* __LINUX_FS_NFS_CALLBACK_H */