11da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 21da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * linux/include/linux/nfs_fs.h 31da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 41da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Copyright (C) 1992 Rick Sladkey 51da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 61da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * OS-specific nfs filesystem definitions and declarations 71da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 81da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifndef _LINUX_NFS_FS_H 91da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define _LINUX_NFS_FS_H 101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 11607ca46e97a1b6594b29647d98a32d545c24bdffDavid Howells#include <uapi/linux/nfs_fs.h> 1203bf4b707eee06706c9db343dd5c905b7ee47ed2Chuck Lever 131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 14e27d359e9b7e446190362cd5c8fe281d02194896Trond Myklebust/* 15e27d359e9b7e446190362cd5c8fe281d02194896Trond Myklebust * Enable dprintk() debugging support for nfs client. 16e27d359e9b7e446190362cd5c8fe281d02194896Trond Myklebust */ 17e27d359e9b7e446190362cd5c8fe281d02194896Trond Myklebust#ifdef CONFIG_NFS_DEBUG 18e27d359e9b7e446190362cd5c8fe281d02194896Trond Myklebust# define NFS_DEBUG 19e27d359e9b7e446190362cd5c8fe281d02194896Trond Myklebust#endif 20e27d359e9b7e446190362cd5c8fe281d02194896Trond Myklebust 217f1cbe51ffc1273bcded36742ede4b6ebef1b640David Woodhouse#include <linux/in.h> 227f1cbe51ffc1273bcded36742ede4b6ebef1b640David Woodhouse#include <linux/mm.h> 237f1cbe51ffc1273bcded36742ede4b6ebef1b640David Woodhouse#include <linux/pagemap.h> 241c3c07e9f6cc50dab2aeb8051325e317d4f6c70eTrond Myklebust#include <linux/rbtree.h> 257f1cbe51ffc1273bcded36742ede4b6ebef1b640David Woodhouse#include <linux/rwsem.h> 267f1cbe51ffc1273bcded36742ede4b6ebef1b640David Woodhouse#include <linux/wait.h> 277f1cbe51ffc1273bcded36742ede4b6ebef1b640David Woodhouse 287f1cbe51ffc1273bcded36742ede4b6ebef1b640David Woodhouse#include <linux/sunrpc/debug.h> 297f1cbe51ffc1273bcded36742ede4b6ebef1b640David Woodhouse#include <linux/sunrpc/auth.h> 307f1cbe51ffc1273bcded36742ede4b6ebef1b640David Woodhouse#include <linux/sunrpc/clnt.h> 317f1cbe51ffc1273bcded36742ede4b6ebef1b640David Woodhouse 327f1cbe51ffc1273bcded36742ede4b6ebef1b640David Woodhouse#include <linux/nfs.h> 337f1cbe51ffc1273bcded36742ede4b6ebef1b640David Woodhouse#include <linux/nfs2.h> 347f1cbe51ffc1273bcded36742ede4b6ebef1b640David Woodhouse#include <linux/nfs3.h> 357f1cbe51ffc1273bcded36742ede4b6ebef1b640David Woodhouse#include <linux/nfs4.h> 367f1cbe51ffc1273bcded36742ede4b6ebef1b640David Woodhouse#include <linux/nfs_xdr.h> 377f1cbe51ffc1273bcded36742ede4b6ebef1b640David Woodhouse#include <linux/nfs_fs_sb.h> 387f1cbe51ffc1273bcded36742ede4b6ebef1b640David Woodhouse 397f1cbe51ffc1273bcded36742ede4b6ebef1b640David Woodhouse#include <linux/mempool.h> 407f1cbe51ffc1273bcded36742ede4b6ebef1b640David Woodhouse 417f1cbe51ffc1273bcded36742ede4b6ebef1b640David Woodhouse/* 427f1cbe51ffc1273bcded36742ede4b6ebef1b640David Woodhouse * These are the default flags for swap requests 437f1cbe51ffc1273bcded36742ede4b6ebef1b640David Woodhouse */ 447f1cbe51ffc1273bcded36742ede4b6ebef1b640David Woodhouse#define NFS_RPC_SWAPFLAGS (RPC_TASK_SWAPPER|RPC_TASK_ROOTCREDS) 457f1cbe51ffc1273bcded36742ede4b6ebef1b640David Woodhouse 461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * NFSv3/v4 Access mode cache entry 481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct nfs_access_entry { 501c3c07e9f6cc50dab2aeb8051325e317d4f6c70eTrond Myklebust struct rb_node rb_node; 51cfcea3e8c66c2dcde98d5c2693d4bff50b5cac97Trond Myklebust struct list_head lru; 521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long jiffies; 531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct rpc_cred * cred; 541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int mask; 55f682a398b2e24ae0a775ddf37cced83b897198eeNeilBrown struct rcu_head rcu_head; 561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 582a369153c82e0c83621b3e71d8f0c53394705bdaTrond Myklebuststruct nfs_lockowner { 592a369153c82e0c83621b3e71d8f0c53394705bdaTrond Myklebust fl_owner_t l_owner; 602a369153c82e0c83621b3e71d8f0c53394705bdaTrond Myklebust pid_t l_pid; 612a369153c82e0c83621b3e71d8f0c53394705bdaTrond Myklebust}; 622a369153c82e0c83621b3e71d8f0c53394705bdaTrond Myklebust 63577b42327d707fbe7166aad6902c2eeee6a65015Trond Myklebust#define NFS_IO_INPROGRESS 0 64577b42327d707fbe7166aad6902c2eeee6a65015Trond Myklebuststruct nfs_io_counter { 65577b42327d707fbe7166aad6902c2eeee6a65015Trond Myklebust unsigned long flags; 66577b42327d707fbe7166aad6902c2eeee6a65015Trond Myklebust atomic_t io_count; 67577b42327d707fbe7166aad6902c2eeee6a65015Trond Myklebust}; 68577b42327d707fbe7166aad6902c2eeee6a65015Trond Myklebust 69f11ac8db5d07b6e99d41ff4aa39d878ee5cef1c5Trond Myklebuststruct nfs_lock_context { 70f11ac8db5d07b6e99d41ff4aa39d878ee5cef1c5Trond Myklebust atomic_t count; 71f11ac8db5d07b6e99d41ff4aa39d878ee5cef1c5Trond Myklebust struct list_head list; 72f11ac8db5d07b6e99d41ff4aa39d878ee5cef1c5Trond Myklebust struct nfs_open_context *open_context; 732a369153c82e0c83621b3e71d8f0c53394705bdaTrond Myklebust struct nfs_lockowner lockowner; 74577b42327d707fbe7166aad6902c2eeee6a65015Trond Myklebust struct nfs_io_counter io_count; 75f11ac8db5d07b6e99d41ff4aa39d878ee5cef1c5Trond Myklebust}; 76f11ac8db5d07b6e99d41ff4aa39d878ee5cef1c5Trond Myklebust 771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct nfs4_state; 781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct nfs_open_context { 79f11ac8db5d07b6e99d41ff4aa39d878ee5cef1c5Trond Myklebust struct nfs_lock_context lock_context; 803d4ff43d895c50319af45eb4bf04a4618eccdf76Al Viro struct dentry *dentry; 811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct rpc_cred *cred; 821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct nfs4_state *state; 83dc0b027dfadfcb8a5504f7d8052754bf8d501ab9Trond Myklebust fmode_t mode; 847b159fc18d417980f57aef64cab3417ee6af70f8Trond Myklebust 857b159fc18d417980f57aef64cab3417ee6af70f8Trond Myklebust unsigned long flags; 867b159fc18d417980f57aef64cab3417ee6af70f8Trond Myklebust#define NFS_CONTEXT_ERROR_WRITE (0) 8705990d1bf2708b9e84d67074551f964d3738eedcTrond Myklebust#define NFS_CONTEXT_RESEND_WRITES (1) 88c58c844187df61ef7cc103d0abb5dd6198bcfcd6Trond Myklebust#define NFS_CONTEXT_BAD (2) 891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int error; 901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct list_head list; 9282be417aa37c05116e310b0f2171187ea389f89bAndy Adamson struct nfs4_threshold *mdsthreshold; 93480c2006ebb44ae03165695db7b3e38c04e0d102Bryan Schumaker}; 9400a926422765064cb28e218d4837411c88bf6a3eOlivier Galibert 95480c2006ebb44ae03165695db7b3e38c04e0d102Bryan Schumakerstruct nfs_open_dir_context { 96311324ad1713666a6e803aecf0d4e1a136a5b34aTrond Myklebust struct list_head list; 97480c2006ebb44ae03165695db7b3e38c04e0d102Bryan Schumaker struct rpc_cred *cred; 980c0308066ca53fdf1423895f3a42838b67b3a5a8Trond Myklebust unsigned long attr_gencount; 9900a926422765064cb28e218d4837411c88bf6a3eOlivier Galibert __u64 dir_cookie; 1008ef2ce3e16d9bec6cf015207c1c82a5b864046acBryan Schumaker __u64 dup_cookie; 1010c0308066ca53fdf1423895f3a42838b67b3a5a8Trond Myklebust signed char duped; 1021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * NFSv4 delegation 1061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct nfs_delegation; 1081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1095c6a9f7d92291c832d47e792ed1fafa44acb066eAndreas Gruenbacherstruct posix_acl; 1105c6a9f7d92291c832d47e792ed1fafa44acb066eAndreas Gruenbacher 1111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * nfs fs inode data in memory 1131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct nfs_inode { 1151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 1161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The 64bit 'inode number' 1171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __u64 fileid; 1191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 1211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * NFS file handle 1221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct nfs_fh fh; 1241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 1261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Various flags 1271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 128412d582ec1dd59aab2353f8cb7e74f2c79cd20b9Chuck Lever unsigned long flags; /* atomic bit ops */ 129412d582ec1dd59aab2353f8cb7e74f2c79cd20b9Chuck Lever unsigned long cache_validity; /* bit mask */ 1301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 13224bd68f46b1ad08d69bf32779f860df867780a7aGoldwyn Rodrigues * read_cache_jiffies is when we started read-caching this inode. 1331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * attrtimeo is for how long the cached information is assumed 1341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * to be valid. A successful attribute revalidation doubles 1351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * attrtimeo (up to acregmax/acdirmax), a failure resets it to 1361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * acregmin/acdirmin. 1371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * We need to revalidate the cached attrs for this inode if 1391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 14064672d55d93c26fb4035fd1a84a803cbc09cb058Peter Staubach * jiffies - read_cache_jiffies >= attrtimeo 14164672d55d93c26fb4035fd1a84a803cbc09cb058Peter Staubach * 14264672d55d93c26fb4035fd1a84a803cbc09cb058Peter Staubach * Please note the comparison is greater than or equal 14364672d55d93c26fb4035fd1a84a803cbc09cb058Peter Staubach * so that zero timeout values can be specified. 1441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long read_cache_jiffies; 1461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long attrtimeo; 1471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long attrtimeo_timestamp; 1481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1494704f0e274829e3af00737d2d9adace2d71a9605Trond Myklebust unsigned long attr_gencount; 1501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* "Generation counter" for the attribute cache. This is 1511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * bumped whenever we update the metadata on the 1521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * server. 1531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long cache_change_attribute; 1551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1561c3c07e9f6cc50dab2aeb8051325e317d4f6c70eTrond Myklebust struct rb_root access_cache; 157cfcea3e8c66c2dcde98d5c2693d4bff50b5cac97Trond Myklebust struct list_head access_cache_entry_lru; 158cfcea3e8c66c2dcde98d5c2693d4bff50b5cac97Trond Myklebust struct list_head access_cache_inode_lru; 1591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 1611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This is the cookie verifier used for NFSv3 readdir 1621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * operations 1631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 164bc4785cd475a11ba125df7af674e16c6ea1cfc30Al Viro __be32 cookieverf[2]; 1651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 166fb8a1f11b64e213d94dfa1cebb2a42a7b8c115c4Trond Myklebust unsigned long npages; 167ea2cf2282b4278461266013e9c002ee1c66700ffFred Isaman struct nfs_mds_commit_info commit_info; 1681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* Open contexts for shared mmap writes */ 1701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct list_head open_files; 1711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 172565277f63c616e11c37309a1e98c052d18ebbb55Trond Myklebust /* Number of in-flight sillydelete RPC calls */ 173565277f63c616e11c37309a1e98c052d18ebbb55Trond Myklebust atomic_t silly_count; 174565277f63c616e11c37309a1e98c052d18ebbb55Trond Myklebust /* List of deferred sillydelete requests */ 175565277f63c616e11c37309a1e98c052d18ebbb55Trond Myklebust struct hlist_head silly_list; 176565277f63c616e11c37309a1e98c052d18ebbb55Trond Myklebust wait_queue_head_t waitqueue; 177565277f63c616e11c37309a1e98c052d18ebbb55Trond Myklebust 17889d77c8fa8e6d1cb7e2cce95b428be30ddcc6f23Bryan Schumaker#if IS_ENABLED(CONFIG_NFS_V4) 179e50a1c2e1f816c81eed6a589019052cb44189267J. Bruce Fields struct nfs4_cached_acl *nfs4_acl; 1801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* NFSv4 state */ 1811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct list_head open_states; 1825b22216e11f717adc344abc7f97b42e03127c6c0Arnd Bergmann struct nfs_delegation __rcu *delegation; 183bd7bf9d540c001055fba796ebf146d90e4dd2eb2Trond Myklebust fmode_t delegation_state; 1841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct rw_semaphore rwsem; 185e5e940170b2136ad4d5483ef293ae284b9cc8d53Benny Halevy 186e5e940170b2136ad4d5483ef293ae284b9cc8d53Benny Halevy /* pNFS layout information */ 187e5e940170b2136ad4d5483ef293ae284b9cc8d53Benny Halevy struct pnfs_layout_hdr *layout; 1881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* CONFIG_NFS_V4*/ 1892701d086dbfca03b2d28b25c6dc11dd78d0e26adAndy Adamson /* how many bytes have been written/read and how many bytes queued up */ 1902701d086dbfca03b2d28b25c6dc11dd78d0e26adAndy Adamson __u64 write_io; 1912701d086dbfca03b2d28b25c6dc11dd78d0e26adAndy Adamson __u64 read_io; 192ef79c097bbe9724e13937271b3457df560e00370David Howells#ifdef CONFIG_NFS_FSCACHE 193ef79c097bbe9724e13937271b3457df560e00370David Howells struct fscache_cookie *fscache; 194ef79c097bbe9724e13937271b3457df560e00370David Howells#endif 1951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct inode vfs_inode; 1961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1995529680981807b44abf3be30fb6d612ff04f68ffChuck Lever * Cache validity bit flags 2001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 2015529680981807b44abf3be30fb6d612ff04f68ffChuck Lever#define NFS_INO_INVALID_ATTR 0x0001 /* cached attrs are invalid */ 2025529680981807b44abf3be30fb6d612ff04f68ffChuck Lever#define NFS_INO_INVALID_DATA 0x0002 /* cached data is invalid */ 2035529680981807b44abf3be30fb6d612ff04f68ffChuck Lever#define NFS_INO_INVALID_ATIME 0x0004 /* cached atime is invalid */ 2045529680981807b44abf3be30fb6d612ff04f68ffChuck Lever#define NFS_INO_INVALID_ACCESS 0x0008 /* cached access cred invalid */ 2055529680981807b44abf3be30fb6d612ff04f68ffChuck Lever#define NFS_INO_INVALID_ACL 0x0010 /* cached acls are invalid */ 2065529680981807b44abf3be30fb6d612ff04f68ffChuck Lever#define NFS_INO_REVAL_PAGECACHE 0x0020 /* must revalidate pagecache */ 207412c77cee6d6e73fbe1dc3d67f52163efed33fc4Trond Myklebust#define NFS_INO_REVAL_FORCED 0x0040 /* force revalidation ignoring a delegation */ 208aa9c2669626ca7e5e5bab28e6caeb583fd40099bDavid Quigley#define NFS_INO_INVALID_LABEL 0x0080 /* cached label is invalid */ 2095529680981807b44abf3be30fb6d612ff04f68ffChuck Lever 2105529680981807b44abf3be30fb6d612ff04f68ffChuck Lever/* 211412d582ec1dd59aab2353f8cb7e74f2c79cd20b9Chuck Lever * Bit offsets in flags field 2125529680981807b44abf3be30fb6d612ff04f68ffChuck Lever */ 213691beb13cdc88358334ef0ba867c080a247a760fTrond Myklebust#define NFS_INO_ADVISE_RDPLUS (0) /* advise readdirplus */ 214691beb13cdc88358334ef0ba867c080a247a760fTrond Myklebust#define NFS_INO_STALE (1) /* possible stale inode */ 215691beb13cdc88358334ef0ba867c080a247a760fTrond Myklebust#define NFS_INO_ACL_LRU_SET (2) /* Inode is on the LRU list */ 216d529ef83c355f97027ff85298a9709fe06216a66Jeff Layton#define NFS_INO_INVALIDATING (3) /* inode is being invalidated */ 21772cb77f4a5ace37b12dcb47a0e8637a2c28ad881Trond Myklebust#define NFS_INO_FLUSHING (4) /* inode is flushing out data */ 218ef79c097bbe9724e13937271b3457df560e00370David Howells#define NFS_INO_FSCACHE (5) /* inode can be cached by FS-Cache */ 219ef79c097bbe9724e13937271b3457df560e00370David Howells#define NFS_INO_FSCACHE_LOCK (6) /* FS-Cache cookie management lock */ 22071d0a6112a363e703e383ae5b12c492485c39701Trond Myklebust#define NFS_INO_COMMIT (7) /* inode is committing unstable writes */ 221863a3c6c686d5773f7192a4818769e15db12ce08Andy Adamson#define NFS_INO_LAYOUTCOMMIT (9) /* layoutcommit required */ 22292407e75ce45b41c46944891711fd8faf0714d84Peng Tao#define NFS_INO_LAYOUTCOMMITTING (10) /* layoutcommit inflight */ 2231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 22499fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevystatic inline struct nfs_inode *NFS_I(const struct inode *inode) 2251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return container_of(inode, struct nfs_inode, vfs_inode); 2271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 22899fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy 22999fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevystatic inline struct nfs_server *NFS_SB(const struct super_block *s) 23099fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy{ 23199fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy return (struct nfs_server *)(s->s_fs_info); 23299fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy} 23399fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy 23499fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevystatic inline struct nfs_fh *NFS_FH(const struct inode *inode) 23599fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy{ 23699fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy return &NFS_I(inode)->fh; 23799fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy} 23899fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy 23999fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevystatic inline struct nfs_server *NFS_SERVER(const struct inode *inode) 24099fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy{ 24199fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy return NFS_SB(inode->i_sb); 24299fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy} 24399fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy 24499fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevystatic inline struct rpc_clnt *NFS_CLIENT(const struct inode *inode) 24599fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy{ 24699fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy return NFS_SERVER(inode)->client; 24799fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy} 24899fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy 24999fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevystatic inline const struct nfs_rpc_ops *NFS_PROTO(const struct inode *inode) 25099fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy{ 25199fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy return NFS_SERVER(inode)->nfs_client->rpc_ops; 25299fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy} 25399fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy 25499fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevystatic inline unsigned NFS_MINATTRTIMEO(const struct inode *inode) 25599fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy{ 25699fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy struct nfs_server *nfss = NFS_SERVER(inode); 25799fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy return S_ISDIR(inode->i_mode) ? nfss->acdirmin : nfss->acregmin; 25899fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy} 25999fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy 26099fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevystatic inline unsigned NFS_MAXATTRTIMEO(const struct inode *inode) 26199fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy{ 26299fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy struct nfs_server *nfss = NFS_SERVER(inode); 26399fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy return S_ISDIR(inode->i_mode) ? nfss->acdirmax : nfss->acregmax; 26499fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy} 26599fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy 26699fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevystatic inline int NFS_STALE(const struct inode *inode) 26799fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy{ 26899fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy return test_bit(NFS_INO_STALE, &NFS_I(inode)->flags); 26999fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy} 27099fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy 271f1fe29b4a02d0805aa7d0ff6b73410a9f9316d69David Howellsstatic inline struct fscache_cookie *nfs_i_fscache(struct inode *inode) 272ef79c097bbe9724e13937271b3457df560e00370David Howells{ 273f1fe29b4a02d0805aa7d0ff6b73410a9f9316d69David Howells#ifdef CONFIG_NFS_FSCACHE 274f1fe29b4a02d0805aa7d0ff6b73410a9f9316d69David Howells return NFS_I(inode)->fscache; 275f1fe29b4a02d0805aa7d0ff6b73410a9f9316d69David Howells#else 276f1fe29b4a02d0805aa7d0ff6b73410a9f9316d69David Howells return NULL; 277f1fe29b4a02d0805aa7d0ff6b73410a9f9316d69David Howells#endif 278ef79c097bbe9724e13937271b3457df560e00370David Howells} 279ef79c097bbe9724e13937271b3457df560e00370David Howells 28099fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevystatic inline __u64 NFS_FILEID(const struct inode *inode) 28199fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy{ 28299fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy return NFS_I(inode)->fileid; 28399fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy} 28499fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy 28599fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevystatic inline void set_nfs_fileid(struct inode *inode, __u64 fileid) 28699fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy{ 28799fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy NFS_I(inode)->fileid = fileid; 28899fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy} 2891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 290decf491f3076190262d4c649bed877650623903aTrond Myklebuststatic inline void nfs_mark_for_revalidate(struct inode *inode) 291decf491f3076190262d4c649bed877650623903aTrond Myklebust{ 29238478b24e37587f1c4fedf8ac070ca54f052ed28Trond Myklebust struct nfs_inode *nfsi = NFS_I(inode); 29338478b24e37587f1c4fedf8ac070ca54f052ed28Trond Myklebust 294decf491f3076190262d4c649bed877650623903aTrond Myklebust spin_lock(&inode->i_lock); 29538478b24e37587f1c4fedf8ac070ca54f052ed28Trond Myklebust nfsi->cache_validity |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ACCESS; 296f38211100d4823be530577dc3452f838861222ecTrond Myklebust if (S_ISDIR(inode->i_mode)) 29738478b24e37587f1c4fedf8ac070ca54f052ed28Trond Myklebust nfsi->cache_validity |= NFS_INO_REVAL_PAGECACHE|NFS_INO_INVALID_DATA; 298decf491f3076190262d4c649bed877650623903aTrond Myklebust spin_unlock(&inode->i_lock); 299decf491f3076190262d4c649bed877650623903aTrond Myklebust} 300decf491f3076190262d4c649bed877650623903aTrond Myklebust 3011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic inline int nfs_server_capable(struct inode *inode, int cap) 3021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return NFS_SERVER(inode)->caps & cap; 3041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 306d75340cc4de5c187fbf0bba234309ca86cf0a2fbTrond Myklebuststatic inline void nfs_set_verifier(struct dentry * dentry, unsigned long verf) 307d75340cc4de5c187fbf0bba234309ca86cf0a2fbTrond Myklebust{ 308d75340cc4de5c187fbf0bba234309ca86cf0a2fbTrond Myklebust dentry->d_time = verf; 309d75340cc4de5c187fbf0bba234309ca86cf0a2fbTrond Myklebust} 310d75340cc4de5c187fbf0bba234309ca86cf0a2fbTrond Myklebust 3111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 3121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * nfs_save_change_attribute - Returns the inode attribute change cookie 3138edb01828837302055a8f0afddb2256659480bc5Trond Myklebust * @dir - pointer to parent directory inode 3141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The "change attribute" is updated every time we finish an operation 3151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * that will result in a metadata change on the server. 3161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3178edb01828837302055a8f0afddb2256659480bc5Trond Myklebuststatic inline unsigned long nfs_save_change_attribute(struct inode *dir) 3181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3198edb01828837302055a8f0afddb2256659480bc5Trond Myklebust return NFS_I(dir)->cache_change_attribute; 3201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 3234b841736bc16b320bcdb1e8ece585b3ced9a8811Trond Myklebust * nfs_verify_change_attribute - Detects NFS remote directory changes 3244b841736bc16b320bcdb1e8ece585b3ced9a8811Trond Myklebust * @dir - pointer to parent directory inode 3251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @chattr - previously saved change attribute 3264b841736bc16b320bcdb1e8ece585b3ced9a8811Trond Myklebust * Return "false" if the verifiers doesn't match the change attribute. 3274b841736bc16b320bcdb1e8ece585b3ced9a8811Trond Myklebust * This would usually indicate that the directory contents have changed on 3284b841736bc16b320bcdb1e8ece585b3ced9a8811Trond Myklebust * the server, and that any dentries need revalidating. 3291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3304b841736bc16b320bcdb1e8ece585b3ced9a8811Trond Myklebuststatic inline int nfs_verify_change_attribute(struct inode *dir, unsigned long chattr) 3311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3324b841736bc16b320bcdb1e8ece585b3ced9a8811Trond Myklebust return chattr == NFS_I(dir)->cache_change_attribute; 3331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 3361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * linux/fs/nfs/inode.c 3371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 33829884df0d89c1df0dec3449405bc41569bb44800Trond Myklebustextern int nfs_sync_mapping(struct address_space *mapping); 339cd9ae2b6a75bb1fa0d370929c2d7a7da1ed719d9Trond Myklebustextern void nfs_zap_mapping(struct inode *inode, struct address_space *mapping); 3401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern void nfs_zap_caches(struct inode *); 341c4812998398d9cbce8646494704c52297359ede0Trond Myklebustextern void nfs_invalidate_atime(struct inode *); 3421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern struct inode *nfs_fhget(struct super_block *, struct nfs_fh *, 3431775fd3e805b6a852ef376256967de69284d7962David Quigley struct nfs_fattr *, struct nfs4_label *); 3441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern int nfs_refresh_inode(struct inode *, struct nfs_fattr *); 345decf491f3076190262d4c649bed877650623903aTrond Myklebustextern int nfs_post_op_update_inode(struct inode *inode, struct nfs_fattr *fattr); 34670ca88521fc7bee8ef0fc22033a439d4b9a2c70dTrond Myklebustextern int nfs_post_op_update_inode_force_wcc(struct inode *inode, struct nfs_fattr *fattr); 3471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern int nfs_getattr(struct vfsmount *, struct dentry *, struct kstat *); 3486168f62cbde8dcf4f58255794efbcdb8df603959Weston Andros Adamsonextern void nfs_access_add_cache(struct inode *, struct nfs_access_entry *); 3496168f62cbde8dcf4f58255794efbcdb8df603959Weston Andros Adamsonextern void nfs_access_set_mask(struct nfs_access_entry *, u32); 35010556cb21a0d0b24d95f00ea6df16f599a3345b2Al Viroextern int nfs_permission(struct inode *, int); 3511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern int nfs_open(struct inode *, struct file *); 3521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern int nfs_release(struct inode *, struct file *); 3531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern int nfs_attribute_timeout(struct inode *inode); 35443f291cd0754f8f10c2cd701e014936f708dab59Scott Mayhewextern int nfs_attribute_cache_expired(struct inode *inode); 3551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern int nfs_revalidate_inode(struct nfs_server *server, struct inode *inode); 356912a108da767ae75cc929d2854e698aff527ec5dNeilBrownextern int nfs_revalidate_inode_rcu(struct nfs_server *server, struct inode *inode); 3571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern int __nfs_revalidate_inode(struct nfs_server *, struct inode *); 35844b11874ff583b6e766a05856b04f3c492c32b84Trond Myklebustextern int nfs_revalidate_mapping(struct inode *inode, struct address_space *mapping); 3591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern int nfs_setattr(struct dentry *, struct iattr *); 36065e4308d2500e7daf60c3dccc202c61ffb066c63Trond Myklebustextern void nfs_setattr_update_inode(struct inode *inode, struct iattr *attr); 361aa9c2669626ca7e5e5bab28e6caeb583fd40099bDavid Quigleyextern void nfs_setsecurity(struct inode *inode, struct nfs_fattr *fattr, 362aa9c2669626ca7e5e5bab28e6caeb583fd40099bDavid Quigley struct nfs4_label *label); 3631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern struct nfs_open_context *get_nfs_open_context(struct nfs_open_context *ctx); 3641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern void put_nfs_open_context(struct nfs_open_context *ctx); 365dc0b027dfadfcb8a5504f7d8052754bf8d501ab9Trond Myklebustextern struct nfs_open_context *nfs_find_open_context(struct inode *inode, struct rpc_cred *cred, fmode_t mode); 3665ede7b1cfa8201418fb35e12f770e9e7c2559a4dAl Viroextern struct nfs_open_context *alloc_nfs_open_context(struct dentry *dentry, fmode_t f_mode); 367c45ffdd26961302ec5eeac7311553d6f1e348e9cTrond Myklebustextern void nfs_inode_attach_open_context(struct nfs_open_context *ctx); 368cd9a1c0e5ac681871d64804f82291649e2a0accbTrond Myklebustextern void nfs_file_set_open_context(struct file *filp, struct nfs_open_context *ctx); 369f11ac8db5d07b6e99d41ff4aa39d878ee5cef1c5Trond Myklebustextern struct nfs_lock_context *nfs_get_lock_context(struct nfs_open_context *ctx); 370f11ac8db5d07b6e99d41ff4aa39d878ee5cef1c5Trond Myklebustextern void nfs_put_lock_context(struct nfs_lock_context *l_ctx); 371f43bf0bebed7c33b698a8a25f95812f9e87c3843Trond Myklebustextern u64 nfs_compat_user_ino64(u64 fileid); 3724704f0e274829e3af00737d2d9adace2d71a9605Trond Myklebustextern void nfs_fattr_init(struct nfs_fattr *fattr); 37356463e50d1fc3f070492434cea6303b35ea000deChuck Leverextern unsigned long nfs_inc_attr_generation_counter(void); 3741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3752d36bfde8565b315e624302d12da5a7c9d195522Trond Myklebustextern struct nfs_fattr *nfs_alloc_fattr(void); 3762d36bfde8565b315e624302d12da5a7c9d195522Trond Myklebust 3772d36bfde8565b315e624302d12da5a7c9d195522Trond Myklebuststatic inline void nfs_free_fattr(const struct nfs_fattr *fattr) 3782d36bfde8565b315e624302d12da5a7c9d195522Trond Myklebust{ 3792d36bfde8565b315e624302d12da5a7c9d195522Trond Myklebust kfree(fattr); 3802d36bfde8565b315e624302d12da5a7c9d195522Trond Myklebust} 3812d36bfde8565b315e624302d12da5a7c9d195522Trond Myklebust 3822d36bfde8565b315e624302d12da5a7c9d195522Trond Myklebustextern struct nfs_fh *nfs_alloc_fhandle(void); 3832d36bfde8565b315e624302d12da5a7c9d195522Trond Myklebust 3842d36bfde8565b315e624302d12da5a7c9d195522Trond Myklebuststatic inline void nfs_free_fhandle(const struct nfs_fh *fh) 3852d36bfde8565b315e624302d12da5a7c9d195522Trond Myklebust{ 3862d36bfde8565b315e624302d12da5a7c9d195522Trond Myklebust kfree(fh); 3872d36bfde8565b315e624302d12da5a7c9d195522Trond Myklebust} 3882d36bfde8565b315e624302d12da5a7c9d195522Trond Myklebust 389e27d359e9b7e446190362cd5c8fe281d02194896Trond Myklebust#ifdef NFS_DEBUG 390d8e0539ebdff5ff27fa7eb019715d9dfb5171a3bWeston Andros Adamsonextern u32 _nfs_display_fhandle_hash(const struct nfs_fh *fh); 391d8e0539ebdff5ff27fa7eb019715d9dfb5171a3bWeston Andros Adamsonstatic inline u32 nfs_display_fhandle_hash(const struct nfs_fh *fh) 392d8e0539ebdff5ff27fa7eb019715d9dfb5171a3bWeston Andros Adamson{ 393d8e0539ebdff5ff27fa7eb019715d9dfb5171a3bWeston Andros Adamson return _nfs_display_fhandle_hash(fh); 394d8e0539ebdff5ff27fa7eb019715d9dfb5171a3bWeston Andros Adamson} 39520d27e929fb4790a339a4ddcc9a27f14db06055bChuck Leverextern void _nfs_display_fhandle(const struct nfs_fh *fh, const char *caption); 39620d27e929fb4790a339a4ddcc9a27f14db06055bChuck Lever#define nfs_display_fhandle(fh, caption) \ 39720d27e929fb4790a339a4ddcc9a27f14db06055bChuck Lever do { \ 39820d27e929fb4790a339a4ddcc9a27f14db06055bChuck Lever if (unlikely(nfs_debug & NFSDBG_FACILITY)) \ 39920d27e929fb4790a339a4ddcc9a27f14db06055bChuck Lever _nfs_display_fhandle(fh, caption); \ 40020d27e929fb4790a339a4ddcc9a27f14db06055bChuck Lever } while (0) 40120d27e929fb4790a339a4ddcc9a27f14db06055bChuck Lever#else 402d8e0539ebdff5ff27fa7eb019715d9dfb5171a3bWeston Andros Adamsonstatic inline u32 nfs_display_fhandle_hash(const struct nfs_fh *fh) 403d8e0539ebdff5ff27fa7eb019715d9dfb5171a3bWeston Andros Adamson{ 4049304a8120a6ac06d08874d2aec76f52d3376dfe4Stephen Rothwell return 0; 405d8e0539ebdff5ff27fa7eb019715d9dfb5171a3bWeston Andros Adamson} 40620d27e929fb4790a339a4ddcc9a27f14db06055bChuck Leverstatic inline void nfs_display_fhandle(const struct nfs_fh *fh, 40720d27e929fb4790a339a4ddcc9a27f14db06055bChuck Lever const char *caption) 40820d27e929fb4790a339a4ddcc9a27f14db06055bChuck Lever{ 40920d27e929fb4790a339a4ddcc9a27f14db06055bChuck Lever} 41020d27e929fb4790a339a4ddcc9a27f14db06055bChuck Lever#endif 41120d27e929fb4790a339a4ddcc9a27f14db06055bChuck Lever 41256463e50d1fc3f070492434cea6303b35ea000deChuck Lever/* 41356463e50d1fc3f070492434cea6303b35ea000deChuck Lever * linux/fs/nfs/nfsroot.c 41456463e50d1fc3f070492434cea6303b35ea000deChuck Lever */ 41556463e50d1fc3f070492434cea6303b35ea000deChuck Leverextern int nfs_root_data(char **root_device, char **root_data); /*__init*/ 4161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* linux/net/ipv4/ipconfig.c: trims ip addr off front of name, too. */ 4175a874db4d9bfd8a4c6324d844a4d1c7cfa5cf2c4Al Viroextern __be32 root_nfs_parse_addr(char *name); /*__init*/ 4180e574af1be5f569a5d7f2800333b0bfb358a5e34Trond Myklebust 4191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 4201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * linux/fs/nfs/file.c 4211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4224b6f5d20b04dcbc3d888555522b90ba6d36c4106Arjan van de Venextern const struct file_operations nfs_file_operations; 42389d77c8fa8e6d1cb7e2cce95b428be30ddcc6f23Bryan Schumaker#if IS_ENABLED(CONFIG_NFS_V4) 4241788ea6e3b2a58cf4fb00206e362d9caff8d86a7Jeff Laytonextern const struct file_operations nfs4_file_operations; 4251788ea6e3b2a58cf4fb00206e362d9caff8d86a7Jeff Layton#endif /* CONFIG_NFS_V4 */ 426f5e54d6e53a20cef45af7499e86164f0e0d16bb2Christoph Hellwigextern const struct address_space_operations nfs_file_aops; 42711de3b11e08cac26d59e88efaf4e316701883552Trond Myklebustextern const struct address_space_operations nfs_dir_aops; 4281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 429c03025d55540bd648f2546659090140ecc835572Trond Myklebuststatic inline struct nfs_open_context *nfs_file_open_context(struct file *filp) 430c03025d55540bd648f2546659090140ecc835572Trond Myklebust{ 431c03025d55540bd648f2546659090140ecc835572Trond Myklebust return filp->private_data; 432c03025d55540bd648f2546659090140ecc835572Trond Myklebust} 433c03025d55540bd648f2546659090140ecc835572Trond Myklebust 4341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic inline struct rpc_cred *nfs_file_cred(struct file *file) 4351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 436504e518953a330c8d44a95bdd65a5c9f50f1012eNeil Brown if (file != NULL) { 437504e518953a330c8d44a95bdd65a5c9f50f1012eNeil Brown struct nfs_open_context *ctx = 438504e518953a330c8d44a95bdd65a5c9f50f1012eNeil Brown nfs_file_open_context(file); 439504e518953a330c8d44a95bdd65a5c9f50f1012eNeil Brown if (ctx) 440504e518953a330c8d44a95bdd65a5c9f50f1012eNeil Brown return ctx->cred; 441504e518953a330c8d44a95bdd65a5c9f50f1012eNeil Brown } 4421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return NULL; 4431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 4461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * linux/fs/nfs/direct.c 4471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 448d8d3d94b80aa1a1c0ca75c58b8abdc7356f38418Al Viroextern ssize_t nfs_direct_IO(int, struct kiocb *, struct iov_iter *, loff_t); 449027445c37282bc1ed26add45e573ad2d3e4860a5Badari Pulavartyextern ssize_t nfs_file_direct_read(struct kiocb *iocb, 450619d30b4b8c488042b4a720ca79dccc346d1a516Al Viro struct iov_iter *iter, 451e19a8a0ad2d255316830ead05b59c5a704434cbbMartin K. Petersen loff_t pos); 452027445c37282bc1ed26add45e573ad2d3e4860a5Badari Pulavartyextern ssize_t nfs_file_direct_write(struct kiocb *iocb, 453619d30b4b8c488042b4a720ca79dccc346d1a516Al Viro struct iov_iter *iter, 454e19a8a0ad2d255316830ead05b59c5a704434cbbMartin K. Petersen loff_t pos); 4551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 4571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * linux/fs/nfs/dir.c 4581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4594b6f5d20b04dcbc3d888555522b90ba6d36c4106Arjan van de Venextern const struct file_operations nfs_dir_operations; 460f786aa90e026f2174bb0c26d49f338c5c46ede55Al Viroextern const struct dentry_operations nfs_dentry_operations; 4611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 462bfc69a456642a51c89dfd8e5184468857cb44f32Trond Myklebustextern void nfs_force_lookup_revalidate(struct inode *dir); 4631775fd3e805b6a852ef376256967de69284d7962David Quigleyextern int nfs_instantiate(struct dentry *dentry, struct nfs_fh *fh, 4641775fd3e805b6a852ef376256967de69284d7962David Quigley struct nfs_fattr *fattr, struct nfs4_label *label); 465af22f94ae02ab9dd4fd7fe628c8434a59cc293beTrond Myklebustextern int nfs_may_open(struct inode *inode, struct rpc_cred *cred, int openflags); 466af22f94ae02ab9dd4fd7fe628c8434a59cc293beTrond Myklebustextern void nfs_access_zap_cache(struct inode *inode); 4671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 4691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * linux/fs/nfs/symlink.c 4701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 471c5ef1c42c51b1b5b4a401a6517bdda30933ddbafArjan van de Venextern const struct inode_operations nfs_symlink_inode_operations; 4721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 474a72b44222d222749d54b3e370d825094352e389fTrond Myklebust * linux/fs/nfs/sysctl.c 475a72b44222d222749d54b3e370d825094352e389fTrond Myklebust */ 476a72b44222d222749d54b3e370d825094352e389fTrond Myklebust#ifdef CONFIG_SYSCTL 477a72b44222d222749d54b3e370d825094352e389fTrond Myklebustextern int nfs_register_sysctl(void); 478a72b44222d222749d54b3e370d825094352e389fTrond Myklebustextern void nfs_unregister_sysctl(void); 479a72b44222d222749d54b3e370d825094352e389fTrond Myklebust#else 4807fd105e758c8d746d57ab7e77f100e096bf153c8Stephen Rothwell#define nfs_register_sysctl() 0 481a72b44222d222749d54b3e370d825094352e389fTrond Myklebust#define nfs_unregister_sysctl() do { } while(0) 482a72b44222d222749d54b3e370d825094352e389fTrond Myklebust#endif 483a72b44222d222749d54b3e370d825094352e389fTrond Myklebust 484a72b44222d222749d54b3e370d825094352e389fTrond Myklebust/* 48555a975937d40cac582e981ddc8ed783b3dcc043cTrond Myklebust * linux/fs/nfs/namespace.c 48655a975937d40cac582e981ddc8ed783b3dcc043cTrond Myklebust */ 487c5ef1c42c51b1b5b4a401a6517bdda30933ddbafArjan van de Venextern const struct inode_operations nfs_mountpoint_inode_operations; 488c5ef1c42c51b1b5b4a401a6517bdda30933ddbafArjan van de Venextern const struct inode_operations nfs_referral_inode_operations; 48951d8fa6a109589d522c18a8e9bf3fb167a91b1bcTrond Myklebustextern int nfs_mountpoint_expiry_timeout; 49051d8fa6a109589d522c18a8e9bf3fb167a91b1bcTrond Myklebustextern void nfs_release_automount_timer(void); 49155a975937d40cac582e981ddc8ed783b3dcc043cTrond Myklebust 49255a975937d40cac582e981ddc8ed783b3dcc043cTrond Myklebust/* 4931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * linux/fs/nfs/unlink.c 4941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 495e4eff1a622edd6ab7b73acd5d8763aa2fa3fee49Trond Myklebustextern void nfs_complete_unlink(struct dentry *dentry, struct inode *); 496ba6c05928dcafc7e0a0c8e4ee6a293ba47190fd4Trond Myklebustextern void nfs_wait_on_sillyrename(struct dentry *dentry); 497565277f63c616e11c37309a1e98c052d18ebbb55Trond Myklebustextern void nfs_block_sillyrename(struct dentry *dentry); 498565277f63c616e11c37309a1e98c052d18ebbb55Trond Myklebustextern void nfs_unblock_sillyrename(struct dentry *dentry); 4991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 5011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * linux/fs/nfs/write.c 5021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 50389a09141df6ac1c3821fbe44ca8384eb37692965Peter Zijlstraextern int nfs_congestion_kb; 5041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern int nfs_writepage(struct page *page, struct writeback_control *wbc); 5051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern int nfs_writepages(struct address_space *, struct writeback_control *); 5061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern int nfs_flush_incompatible(struct file *file, struct page *page); 5071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern int nfs_updatepage(struct file *, struct page *, unsigned int, unsigned int); 5081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 5101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Try to write back everything synchronously (but check the 5111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return value!) 5121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5131c75950b9a2254ef08f986e00ad20266ae9ba7f1Trond Myklebustextern int nfs_wb_all(struct inode *inode); 5141c75950b9a2254ef08f986e00ad20266ae9ba7f1Trond Myklebustextern int nfs_wb_page(struct inode *inode, struct page* page); 5151b3b4a1a2deb7d3e5d66063bd76304d840c966b3Trond Myklebustextern int nfs_wb_page_cancel(struct inode *inode, struct page* page); 516b608b283a962caaa280756bc8563016a71712acfTrond Myklebustextern int nfs_commit_inode(struct inode *, int); 5170b7c01533aa9f4a228d07d2768d084acb3a387bcFred Isamanextern struct nfs_commit_data *nfs_commitdata_alloc(void); 5180b7c01533aa9f4a228d07d2768d084acb3a387bcFred Isamanextern void nfs_commit_free(struct nfs_commit_data *data); 5191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic inline int 5211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsnfs_have_writebacks(struct inode *inode) 5221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return NFS_I(inode)->npages != 0; 5241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 5271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * linux/fs/nfs/read.c 5281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern int nfs_readpage(struct file *, struct page *); 5301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern int nfs_readpages(struct file *, struct address_space *, 5311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct list_head *, unsigned); 532f42b293d6d5259043a8944b556eeab427c695d57David Howellsextern int nfs_readpage_async(struct nfs_open_context *, struct inode *, 533f42b293d6d5259043a8944b556eeab427c695d57David Howells struct page *); 534963d8fe53339128ee46a7701f2e36305f0ccff8cTrond Myklebust 5351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 5361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * inline functions 5371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 539433c92379d9c2c59c2ebc7628fe4fb02cfc2daf8Chuck Leverstatic inline loff_t nfs_size_to_loff_t(__u64 size) 5401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 541433c92379d9c2c59c2ebc7628fe4fb02cfc2daf8Chuck Lever if (size > (__u64) OFFSET_MAX - 1) 542433c92379d9c2c59c2ebc7628fe4fb02cfc2daf8Chuck Lever return OFFSET_MAX - 1; 5431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (loff_t) size; 5441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic inline ino_t 5471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsnfs_fileid_to_ino_t(u64 fileid) 5481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ino_t ino = (ino_t) fileid; 5501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (sizeof(ino_t) < sizeof(u64)) 5511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ino ^= fileid >> (sizeof(u64)-sizeof(ino_t)) * 8; 5521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ino; 5531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define NFS_JUKEBOX_RETRY_TIME (5 * HZ) 5561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5574dc2eaecd4cf0687727e418540bccf956a62ebcfBenny Halevy 5581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds# undef ifdebug 5591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds# ifdef NFS_DEBUG 5601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds# define ifdebug(fac) if (unlikely(nfs_debug & NFSDBG_##fac)) 5616f00866ddd15724eb20eac4ddf6e2c6c1a6cfcdcTrond Myklebust# define NFS_IFDEBUG(x) x 5621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds# else 5631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds# define ifdebug(fac) if (0) 5646f00866ddd15724eb20eac4ddf6e2c6c1a6cfcdcTrond Myklebust# define NFS_IFDEBUG(x) 5651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds# endif 5661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 567