nfs_fs.h revision 4704f0e274829e3af00737d2d9adace2d71a9605
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 91da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifndef _LINUX_NFS_FS_H 101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define _LINUX_NFS_FS_H 111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 12e18fa700c9a31360bc8f193aa543b7ef7b39a06bJeff Garzik#include <linux/magic.h> 13e18fa700c9a31360bc8f193aa543b7ef7b39a06bJeff Garzik 1403bf4b707eee06706c9db343dd5c905b7ee47ed2Chuck Lever/* Default timeout values */ 15259875efed06d6936f54c9a264e868937f1bc217Trond Myklebust#define NFS_DEF_UDP_TIMEO (11) 16259875efed06d6936f54c9a264e868937f1bc217Trond Myklebust#define NFS_DEF_UDP_RETRANS (3) 17259875efed06d6936f54c9a264e868937f1bc217Trond Myklebust#define NFS_DEF_TCP_TIMEO (600) 18259875efed06d6936f54c9a264e868937f1bc217Trond Myklebust#define NFS_DEF_TCP_RETRANS (2) 19259875efed06d6936f54c9a264e868937f1bc217Trond Myklebust 2003bf4b707eee06706c9db343dd5c905b7ee47ed2Chuck Lever#define NFS_MAX_UDP_TIMEOUT (60*HZ) 2103bf4b707eee06706c9db343dd5c905b7ee47ed2Chuck Lever#define NFS_MAX_TCP_TIMEOUT (600*HZ) 2203bf4b707eee06706c9db343dd5c905b7ee47ed2Chuck Lever 230e0cab744b17a70ef0f08d818d66935feade7cadChuck Lever#define NFS_DEF_ACREGMIN (3) 240e0cab744b17a70ef0f08d818d66935feade7cadChuck Lever#define NFS_DEF_ACREGMAX (60) 250e0cab744b17a70ef0f08d818d66935feade7cadChuck Lever#define NFS_DEF_ACDIRMIN (30) 260e0cab744b17a70ef0f08d818d66935feade7cadChuck Lever#define NFS_DEF_ACDIRMAX (60) 270e0cab744b17a70ef0f08d818d66935feade7cadChuck Lever 281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * When flushing a cluster of dirty pages, there can be different 301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * strategies: 311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FLUSH_SYNC 1 /* file being synced, or contention */ 331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FLUSH_STABLE 4 /* commit to stable storage */ 341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FLUSH_LOWPRI 8 /* low priority background flush */ 351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define FLUSH_HIGHPRI 16 /* high priority memory reclaim flush */ 3670b9ecbdb9c5fdc731f8780bffd45d9519020c4aTrond Myklebust#define FLUSH_NOCOMMIT 32 /* Don't send the NFSv3/v4 COMMIT */ 37d2ccddf042c403b146159beea438c6bfc4a445e2Trond Myklebust#define FLUSH_INVALIDATE 64 /* Invalidate the page cache */ 384d770ccf4257b23a7ca2a85de1b1c22657b581d8Trond Myklebust#define FLUSH_NOWRITEPAGE 128 /* Don't call writepage() */ 391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef __KERNEL__ 411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 427f1cbe51ffc1273bcded36742ede4b6ebef1b640David Woodhouse#include <linux/in.h> 433bec63db55463365110d00721ed60a31e4614cb6Trond Myklebust#include <linux/kref.h> 447f1cbe51ffc1273bcded36742ede4b6ebef1b640David Woodhouse#include <linux/mm.h> 457f1cbe51ffc1273bcded36742ede4b6ebef1b640David Woodhouse#include <linux/pagemap.h> 461c3c07e9f6cc50dab2aeb8051325e317d4f6c70eTrond Myklebust#include <linux/rbtree.h> 477f1cbe51ffc1273bcded36742ede4b6ebef1b640David Woodhouse#include <linux/rwsem.h> 487f1cbe51ffc1273bcded36742ede4b6ebef1b640David Woodhouse#include <linux/wait.h> 497f1cbe51ffc1273bcded36742ede4b6ebef1b640David Woodhouse 507f1cbe51ffc1273bcded36742ede4b6ebef1b640David Woodhouse#include <linux/sunrpc/debug.h> 517f1cbe51ffc1273bcded36742ede4b6ebef1b640David Woodhouse#include <linux/sunrpc/auth.h> 527f1cbe51ffc1273bcded36742ede4b6ebef1b640David Woodhouse#include <linux/sunrpc/clnt.h> 537f1cbe51ffc1273bcded36742ede4b6ebef1b640David Woodhouse 547f1cbe51ffc1273bcded36742ede4b6ebef1b640David Woodhouse#include <linux/nfs.h> 557f1cbe51ffc1273bcded36742ede4b6ebef1b640David Woodhouse#include <linux/nfs2.h> 567f1cbe51ffc1273bcded36742ede4b6ebef1b640David Woodhouse#include <linux/nfs3.h> 577f1cbe51ffc1273bcded36742ede4b6ebef1b640David Woodhouse#include <linux/nfs4.h> 587f1cbe51ffc1273bcded36742ede4b6ebef1b640David Woodhouse#include <linux/nfs_xdr.h> 597f1cbe51ffc1273bcded36742ede4b6ebef1b640David Woodhouse#include <linux/nfs_fs_sb.h> 607f1cbe51ffc1273bcded36742ede4b6ebef1b640David Woodhouse 617f1cbe51ffc1273bcded36742ede4b6ebef1b640David Woodhouse#include <linux/mempool.h> 627f1cbe51ffc1273bcded36742ede4b6ebef1b640David Woodhouse 637f1cbe51ffc1273bcded36742ede4b6ebef1b640David Woodhouse/* 647f1cbe51ffc1273bcded36742ede4b6ebef1b640David Woodhouse * These are the default flags for swap requests 657f1cbe51ffc1273bcded36742ede4b6ebef1b640David Woodhouse */ 667f1cbe51ffc1273bcded36742ede4b6ebef1b640David Woodhouse#define NFS_RPC_SWAPFLAGS (RPC_TASK_SWAPPER|RPC_TASK_ROOTCREDS) 677f1cbe51ffc1273bcded36742ede4b6ebef1b640David Woodhouse 681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * NFSv3/v4 Access mode cache entry 701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct nfs_access_entry { 721c3c07e9f6cc50dab2aeb8051325e317d4f6c70eTrond Myklebust struct rb_node rb_node; 73cfcea3e8c66c2dcde98d5c2693d4bff50b5cac97Trond Myklebust struct list_head lru; 741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long jiffies; 751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct rpc_cred * cred; 761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int mask; 771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct nfs4_state; 801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct nfs_open_context { 815e11934d13c9a3bcb0cadad6c7a7de5c32660422Trond Myklebust atomic_t count; 8288be9f990fe70f0f177ef44a16a477599e91f825Trond Myklebust struct path path; 831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct rpc_cred *cred; 841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct nfs4_state *state; 851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds fl_owner_t lockowner; 861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int mode; 877b159fc18d417980f57aef64cab3417ee6af70f8Trond Myklebust 887b159fc18d417980f57aef64cab3417ee6af70f8Trond Myklebust unsigned long flags; 897b159fc18d417980f57aef64cab3417ee6af70f8Trond Myklebust#define NFS_CONTEXT_ERROR_WRITE (0) 901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int error; 911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct list_head list; 9300a926422765064cb28e218d4837411c88bf6a3eOlivier Galibert 9400a926422765064cb28e218d4837411c88bf6a3eOlivier Galibert __u64 dir_cookie; 951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * NFSv4 delegation 991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct nfs_delegation; 1011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1025c6a9f7d92291c832d47e792ed1fafa44acb066eAndreas Gruenbacherstruct posix_acl; 1035c6a9f7d92291c832d47e792ed1fafa44acb066eAndreas Gruenbacher 1041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * nfs fs inode data in memory 1061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct nfs_inode { 1081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 1091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The 64bit 'inode number' 1101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __u64 fileid; 1121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 1141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * NFS file handle 1151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct nfs_fh fh; 1171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 1191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Various flags 1201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 121412d582ec1dd59aab2353f8cb7e74f2c79cd20b9Chuck Lever unsigned long flags; /* atomic bit ops */ 122412d582ec1dd59aab2353f8cb7e74f2c79cd20b9Chuck Lever unsigned long cache_validity; /* bit mask */ 1231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 12524bd68f46b1ad08d69bf32779f860df867780a7aGoldwyn Rodrigues * read_cache_jiffies is when we started read-caching this inode. 1261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * attrtimeo is for how long the cached information is assumed 1271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * to be valid. A successful attribute revalidation doubles 1281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * attrtimeo (up to acregmax/acdirmax), a failure resets it to 1291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * acregmin/acdirmin. 1301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * We need to revalidate the cached attrs for this inode if 1321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 1331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * jiffies - read_cache_jiffies > attrtimeo 1341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long read_cache_jiffies; 1361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long attrtimeo; 1371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long attrtimeo_timestamp; 1381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __u64 change_attr; /* v4 only */ 1391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1404704f0e274829e3af00737d2d9adace2d71a9605Trond Myklebust unsigned long attr_gencount; 1411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* "Generation counter" for the attribute cache. This is 1421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * bumped whenever we update the metadata on the 1431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * server. 1441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long cache_change_attribute; 1461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1471c3c07e9f6cc50dab2aeb8051325e317d4f6c70eTrond Myklebust struct rb_root access_cache; 148cfcea3e8c66c2dcde98d5c2693d4bff50b5cac97Trond Myklebust struct list_head access_cache_entry_lru; 149cfcea3e8c66c2dcde98d5c2693d4bff50b5cac97Trond Myklebust struct list_head access_cache_inode_lru; 1505c6a9f7d92291c832d47e792ed1fafa44acb066eAndreas Gruenbacher#ifdef CONFIG_NFS_V3_ACL 1515c6a9f7d92291c832d47e792ed1fafa44acb066eAndreas Gruenbacher struct posix_acl *acl_access; 1525c6a9f7d92291c832d47e792ed1fafa44acb066eAndreas Gruenbacher struct posix_acl *acl_default; 1535c6a9f7d92291c832d47e792ed1fafa44acb066eAndreas Gruenbacher#endif 1541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 1561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This is the cookie verifier used for NFSv3 readdir 1571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * operations 1581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 159bc4785cd475a11ba125df7af674e16c6ea1cfc30Al Viro __be32 cookieverf[2]; 1601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* 1621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This is the list of dirty unwritten pages. 1631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct radix_tree_root nfs_page_tree; 1651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 166dce34ce298d85b81630401f4feb4bd7ac77fe9c7Trond Myklebust unsigned long ncommit, 1671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds npages; 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 1781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef CONFIG_NFS_V4 179e50a1c2e1f816c81eed6a589019052cb44189267J. Bruce Fields struct nfs4_cached_acl *nfs4_acl; 1801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds /* NFSv4 state */ 1811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct list_head open_states; 1821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct nfs_delegation *delegation; 1831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int delegation_state; 1841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct rw_semaphore rwsem; 1851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* CONFIG_NFS_V4*/ 1861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct inode vfs_inode; 1871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 1881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 1905529680981807b44abf3be30fb6d612ff04f68ffChuck Lever * Cache validity bit flags 1911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 1925529680981807b44abf3be30fb6d612ff04f68ffChuck Lever#define NFS_INO_INVALID_ATTR 0x0001 /* cached attrs are invalid */ 1935529680981807b44abf3be30fb6d612ff04f68ffChuck Lever#define NFS_INO_INVALID_DATA 0x0002 /* cached data is invalid */ 1945529680981807b44abf3be30fb6d612ff04f68ffChuck Lever#define NFS_INO_INVALID_ATIME 0x0004 /* cached atime is invalid */ 1955529680981807b44abf3be30fb6d612ff04f68ffChuck Lever#define NFS_INO_INVALID_ACCESS 0x0008 /* cached access cred invalid */ 1965529680981807b44abf3be30fb6d612ff04f68ffChuck Lever#define NFS_INO_INVALID_ACL 0x0010 /* cached acls are invalid */ 1975529680981807b44abf3be30fb6d612ff04f68ffChuck Lever#define NFS_INO_REVAL_PAGECACHE 0x0020 /* must revalidate pagecache */ 198412c77cee6d6e73fbe1dc3d67f52163efed33fc4Trond Myklebust#define NFS_INO_REVAL_FORCED 0x0040 /* force revalidation ignoring a delegation */ 1995529680981807b44abf3be30fb6d612ff04f68ffChuck Lever 2005529680981807b44abf3be30fb6d612ff04f68ffChuck Lever/* 201412d582ec1dd59aab2353f8cb7e74f2c79cd20b9Chuck Lever * Bit offsets in flags field 2025529680981807b44abf3be30fb6d612ff04f68ffChuck Lever */ 203691beb13cdc88358334ef0ba867c080a247a760fTrond Myklebust#define NFS_INO_ADVISE_RDPLUS (0) /* advise readdirplus */ 204691beb13cdc88358334ef0ba867c080a247a760fTrond Myklebust#define NFS_INO_STALE (1) /* possible stale inode */ 205691beb13cdc88358334ef0ba867c080a247a760fTrond Myklebust#define NFS_INO_ACL_LRU_SET (2) /* Inode is on the LRU list */ 206691beb13cdc88358334ef0ba867c080a247a760fTrond Myklebust#define NFS_INO_MOUNTPOINT (3) /* inode is remote mountpoint */ 2071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 20899fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevystatic inline struct nfs_inode *NFS_I(const struct inode *inode) 2091da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return container_of(inode, struct nfs_inode, vfs_inode); 2111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 21299fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy 21399fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevystatic inline struct nfs_server *NFS_SB(const struct super_block *s) 21499fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy{ 21599fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy return (struct nfs_server *)(s->s_fs_info); 21699fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy} 21799fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy 21899fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevystatic inline struct nfs_fh *NFS_FH(const struct inode *inode) 21999fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy{ 22099fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy return &NFS_I(inode)->fh; 22199fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy} 22299fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy 22399fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevystatic inline struct nfs_server *NFS_SERVER(const struct inode *inode) 22499fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy{ 22599fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy return NFS_SB(inode->i_sb); 22699fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy} 22799fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy 22899fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevystatic inline struct rpc_clnt *NFS_CLIENT(const struct inode *inode) 22999fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy{ 23099fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy return NFS_SERVER(inode)->client; 23199fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy} 23299fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy 23399fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevystatic inline const struct nfs_rpc_ops *NFS_PROTO(const struct inode *inode) 23499fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy{ 23599fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy return NFS_SERVER(inode)->nfs_client->rpc_ops; 23699fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy} 23799fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy 23899fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevystatic inline __be32 *NFS_COOKIEVERF(const struct inode *inode) 23999fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy{ 24099fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy return NFS_I(inode)->cookieverf; 24199fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy} 24299fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy 24399fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevystatic inline unsigned NFS_MINATTRTIMEO(const struct inode *inode) 24499fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy{ 24599fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy struct nfs_server *nfss = NFS_SERVER(inode); 24699fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy return S_ISDIR(inode->i_mode) ? nfss->acdirmin : nfss->acregmin; 24799fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy} 24899fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy 24999fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevystatic inline unsigned NFS_MAXATTRTIMEO(const struct inode *inode) 25099fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy{ 25199fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy struct nfs_server *nfss = NFS_SERVER(inode); 25299fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy return S_ISDIR(inode->i_mode) ? nfss->acdirmax : nfss->acregmax; 25399fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy} 25499fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy 25599fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevystatic inline int NFS_STALE(const struct inode *inode) 25699fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy{ 25799fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy return test_bit(NFS_INO_STALE, &NFS_I(inode)->flags); 25899fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy} 25999fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy 26099fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevystatic inline __u64 NFS_FILEID(const struct inode *inode) 26199fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy{ 26299fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy return NFS_I(inode)->fileid; 26399fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy} 26499fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy 26599fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevystatic inline void set_nfs_fileid(struct inode *inode, __u64 fileid) 26699fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy{ 26799fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy NFS_I(inode)->fileid = fileid; 26899fadcd76465842c014c88b8c9c19b457e9debc0Benny Halevy} 2691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 270decf491f3076190262d4c649bed877650623903aTrond Myklebuststatic inline void nfs_mark_for_revalidate(struct inode *inode) 271decf491f3076190262d4c649bed877650623903aTrond Myklebust{ 27238478b24e37587f1c4fedf8ac070ca54f052ed28Trond Myklebust struct nfs_inode *nfsi = NFS_I(inode); 27338478b24e37587f1c4fedf8ac070ca54f052ed28Trond Myklebust 274decf491f3076190262d4c649bed877650623903aTrond Myklebust spin_lock(&inode->i_lock); 27538478b24e37587f1c4fedf8ac070ca54f052ed28Trond Myklebust nfsi->cache_validity |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ACCESS; 276f38211100d4823be530577dc3452f838861222ecTrond Myklebust if (S_ISDIR(inode->i_mode)) 27738478b24e37587f1c4fedf8ac070ca54f052ed28Trond Myklebust nfsi->cache_validity |= NFS_INO_REVAL_PAGECACHE|NFS_INO_INVALID_DATA; 278decf491f3076190262d4c649bed877650623903aTrond Myklebust spin_unlock(&inode->i_lock); 279decf491f3076190262d4c649bed877650623903aTrond Myklebust} 280decf491f3076190262d4c649bed877650623903aTrond Myklebust 2811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic inline int nfs_server_capable(struct inode *inode, int cap) 2821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return NFS_SERVER(inode)->caps & cap; 2841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 2861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic inline int NFS_USE_READDIRPLUS(struct inode *inode) 2871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 2883a10c30acc4821ca000b52ed0edafd0d3bf26a52Benny Halevy return test_bit(NFS_INO_ADVISE_RDPLUS, &NFS_I(inode)->flags); 2891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 2901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 291d75340cc4de5c187fbf0bba234309ca86cf0a2fbTrond Myklebuststatic inline void nfs_set_verifier(struct dentry * dentry, unsigned long verf) 292d75340cc4de5c187fbf0bba234309ca86cf0a2fbTrond Myklebust{ 293d75340cc4de5c187fbf0bba234309ca86cf0a2fbTrond Myklebust dentry->d_time = verf; 294d75340cc4de5c187fbf0bba234309ca86cf0a2fbTrond Myklebust} 295d75340cc4de5c187fbf0bba234309ca86cf0a2fbTrond Myklebust 2961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 2971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * nfs_save_change_attribute - Returns the inode attribute change cookie 2988edb01828837302055a8f0afddb2256659480bc5Trond Myklebust * @dir - pointer to parent directory inode 2991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The "change attribute" is updated every time we finish an operation 3001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * that will result in a metadata change on the server. 3011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3028edb01828837302055a8f0afddb2256659480bc5Trond Myklebuststatic inline unsigned long nfs_save_change_attribute(struct inode *dir) 3031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3048edb01828837302055a8f0afddb2256659480bc5Trond Myklebust return NFS_I(dir)->cache_change_attribute; 3051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/** 3084b841736bc16b320bcdb1e8ece585b3ced9a8811Trond Myklebust * nfs_verify_change_attribute - Detects NFS remote directory changes 3094b841736bc16b320bcdb1e8ece585b3ced9a8811Trond Myklebust * @dir - pointer to parent directory inode 3101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * @chattr - previously saved change attribute 3114b841736bc16b320bcdb1e8ece585b3ced9a8811Trond Myklebust * Return "false" if the verifiers doesn't match the change attribute. 3124b841736bc16b320bcdb1e8ece585b3ced9a8811Trond Myklebust * This would usually indicate that the directory contents have changed on 3134b841736bc16b320bcdb1e8ece585b3ced9a8811Trond Myklebust * the server, and that any dentries need revalidating. 3141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3154b841736bc16b320bcdb1e8ece585b3ced9a8811Trond Myklebuststatic inline int nfs_verify_change_attribute(struct inode *dir, unsigned long chattr) 3161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 3174b841736bc16b320bcdb1e8ece585b3ced9a8811Trond Myklebust return chattr == NFS_I(dir)->cache_change_attribute; 3181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 3211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * linux/fs/nfs/inode.c 3221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 32329884df0d89c1df0dec3449405bc41569bb44800Trond Myklebustextern int nfs_sync_mapping(struct address_space *mapping); 324cd9ae2b6a75bb1fa0d370929c2d7a7da1ed719d9Trond Myklebustextern void nfs_zap_mapping(struct inode *inode, struct address_space *mapping); 3251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern void nfs_zap_caches(struct inode *); 326c4812998398d9cbce8646494704c52297359ede0Trond Myklebustextern void nfs_invalidate_atime(struct inode *); 3271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern struct inode *nfs_fhget(struct super_block *, struct nfs_fh *, 3281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct nfs_fattr *); 3291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern int nfs_refresh_inode(struct inode *, struct nfs_fattr *); 330decf491f3076190262d4c649bed877650623903aTrond Myklebustextern int nfs_post_op_update_inode(struct inode *inode, struct nfs_fattr *fattr); 33170ca88521fc7bee8ef0fc22033a439d4b9a2c70dTrond Myklebustextern int nfs_post_op_update_inode_force_wcc(struct inode *inode, struct nfs_fattr *fattr); 3321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern int nfs_getattr(struct vfsmount *, struct dentry *, struct kstat *); 333e6305c43eda10ebfd2ad9e35d6e172ccc7bb3695Al Viroextern int nfs_permission(struct inode *, int); 3341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern int nfs_open(struct inode *, struct file *); 3351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern int nfs_release(struct inode *, struct file *); 3361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern int nfs_attribute_timeout(struct inode *inode); 3371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern int nfs_revalidate_inode(struct nfs_server *server, struct inode *inode); 3381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern int __nfs_revalidate_inode(struct nfs_server *, struct inode *); 33944b11874ff583b6e766a05856b04f3c492c32b84Trond Myklebustextern int nfs_revalidate_mapping(struct inode *inode, struct address_space *mapping); 340717d44e849219781ced028a40fcc59d3e1f49e4cTrond Myklebustextern int nfs_revalidate_mapping_nolock(struct inode *inode, struct address_space *mapping); 3411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern int nfs_setattr(struct dentry *, struct iattr *); 34265e4308d2500e7daf60c3dccc202c61ffb066c63Trond Myklebustextern void nfs_setattr_update_inode(struct inode *inode, struct iattr *attr); 3431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern struct nfs_open_context *get_nfs_open_context(struct nfs_open_context *ctx); 3441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern void put_nfs_open_context(struct nfs_open_context *ctx); 345d530838bfa507d67b40d13b00d9cbd7a46a47e78Trond Myklebustextern struct nfs_open_context *nfs_find_open_context(struct inode *inode, struct rpc_cred *cred, int mode); 346f43bf0bebed7c33b698a8a25f95812f9e87c3843Trond Myklebustextern u64 nfs_compat_user_ino64(u64 fileid); 3474704f0e274829e3af00737d2d9adace2d71a9605Trond Myklebustextern void nfs_fattr_init(struct nfs_fattr *fattr); 3481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* linux/net/ipv4/ipconfig.c: trims ip addr off front of name, too. */ 3505a874db4d9bfd8a4c6324d844a4d1c7cfa5cf2c4Al Viroextern __be32 root_nfs_parse_addr(char *name); /*__init*/ 3514704f0e274829e3af00737d2d9adace2d71a9605Trond Myklebustextern unsigned long nfs_inc_attr_generation_counter(void); 3520e574af1be5f569a5d7f2800333b0bfb358a5e34Trond Myklebust 3531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 3541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * linux/fs/nfs/file.c 3551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 356c5ef1c42c51b1b5b4a401a6517bdda30933ddbafArjan van de Venextern const struct inode_operations nfs_file_inode_operations; 357b7fa0554cf1ba6d6895cd0a5b02989a26e0bc704Andreas Gruenbacher#ifdef CONFIG_NFS_V3 358c5ef1c42c51b1b5b4a401a6517bdda30933ddbafArjan van de Venextern const struct inode_operations nfs3_file_inode_operations; 359b7fa0554cf1ba6d6895cd0a5b02989a26e0bc704Andreas Gruenbacher#endif /* CONFIG_NFS_V3 */ 3604b6f5d20b04dcbc3d888555522b90ba6d36c4106Arjan van de Venextern const struct file_operations nfs_file_operations; 361f5e54d6e53a20cef45af7499e86164f0e0d16bb2Christoph Hellwigextern const struct address_space_operations nfs_file_aops; 3621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 363c03025d55540bd648f2546659090140ecc835572Trond Myklebuststatic inline struct nfs_open_context *nfs_file_open_context(struct file *filp) 364c03025d55540bd648f2546659090140ecc835572Trond Myklebust{ 365c03025d55540bd648f2546659090140ecc835572Trond Myklebust return filp->private_data; 366c03025d55540bd648f2546659090140ecc835572Trond Myklebust} 367c03025d55540bd648f2546659090140ecc835572Trond Myklebust 3681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic inline struct rpc_cred *nfs_file_cred(struct file *file) 3691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 370cd3758e37ddea66fccca7d93c4b601e8a2e51926Trond Myklebust if (file != NULL) 371cd3758e37ddea66fccca7d93c4b601e8a2e51926Trond Myklebust return nfs_file_open_context(file)->cred; 3721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return NULL; 3731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 3741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 3751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 376b7fa0554cf1ba6d6895cd0a5b02989a26e0bc704Andreas Gruenbacher * linux/fs/nfs/xattr.c 377b7fa0554cf1ba6d6895cd0a5b02989a26e0bc704Andreas Gruenbacher */ 378b7fa0554cf1ba6d6895cd0a5b02989a26e0bc704Andreas Gruenbacher#ifdef CONFIG_NFS_V3_ACL 379b7fa0554cf1ba6d6895cd0a5b02989a26e0bc704Andreas Gruenbacherextern ssize_t nfs3_listxattr(struct dentry *, char *, size_t); 380b7fa0554cf1ba6d6895cd0a5b02989a26e0bc704Andreas Gruenbacherextern ssize_t nfs3_getxattr(struct dentry *, const char *, void *, size_t); 381b7fa0554cf1ba6d6895cd0a5b02989a26e0bc704Andreas Gruenbacherextern int nfs3_setxattr(struct dentry *, const char *, 382b7fa0554cf1ba6d6895cd0a5b02989a26e0bc704Andreas Gruenbacher const void *, size_t, int); 383b7fa0554cf1ba6d6895cd0a5b02989a26e0bc704Andreas Gruenbacherextern int nfs3_removexattr (struct dentry *, const char *name); 384b7fa0554cf1ba6d6895cd0a5b02989a26e0bc704Andreas Gruenbacher#else 385b7fa0554cf1ba6d6895cd0a5b02989a26e0bc704Andreas Gruenbacher# define nfs3_listxattr NULL 386b7fa0554cf1ba6d6895cd0a5b02989a26e0bc704Andreas Gruenbacher# define nfs3_getxattr NULL 387b7fa0554cf1ba6d6895cd0a5b02989a26e0bc704Andreas Gruenbacher# define nfs3_setxattr NULL 388b7fa0554cf1ba6d6895cd0a5b02989a26e0bc704Andreas Gruenbacher# define nfs3_removexattr NULL 389b7fa0554cf1ba6d6895cd0a5b02989a26e0bc704Andreas Gruenbacher#endif 390b7fa0554cf1ba6d6895cd0a5b02989a26e0bc704Andreas Gruenbacher 391b7fa0554cf1ba6d6895cd0a5b02989a26e0bc704Andreas Gruenbacher/* 3921da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * linux/fs/nfs/direct.c 3931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 3941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern ssize_t nfs_direct_IO(int, struct kiocb *, const struct iovec *, loff_t, 3951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long); 396027445c37282bc1ed26add45e573ad2d3e4860a5Badari Pulavartyextern ssize_t nfs_file_direct_read(struct kiocb *iocb, 397027445c37282bc1ed26add45e573ad2d3e4860a5Badari Pulavarty const struct iovec *iov, unsigned long nr_segs, 398027445c37282bc1ed26add45e573ad2d3e4860a5Badari Pulavarty loff_t pos); 399027445c37282bc1ed26add45e573ad2d3e4860a5Badari Pulavartyextern ssize_t nfs_file_direct_write(struct kiocb *iocb, 400027445c37282bc1ed26add45e573ad2d3e4860a5Badari Pulavarty const struct iovec *iov, unsigned long nr_segs, 401027445c37282bc1ed26add45e573ad2d3e4860a5Badari Pulavarty loff_t pos); 4021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 4041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * linux/fs/nfs/dir.c 4051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 406c5ef1c42c51b1b5b4a401a6517bdda30933ddbafArjan van de Venextern const struct inode_operations nfs_dir_inode_operations; 407b7fa0554cf1ba6d6895cd0a5b02989a26e0bc704Andreas Gruenbacher#ifdef CONFIG_NFS_V3 408c5ef1c42c51b1b5b4a401a6517bdda30933ddbafArjan van de Venextern const struct inode_operations nfs3_dir_inode_operations; 409b7fa0554cf1ba6d6895cd0a5b02989a26e0bc704Andreas Gruenbacher#endif /* CONFIG_NFS_V3 */ 4104b6f5d20b04dcbc3d888555522b90ba6d36c4106Arjan van de Venextern const struct file_operations nfs_dir_operations; 4111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern struct dentry_operations nfs_dentry_operations; 4121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 413bfc69a456642a51c89dfd8e5184468857cb44f32Trond Myklebustextern void nfs_force_lookup_revalidate(struct inode *dir); 4141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern int nfs_instantiate(struct dentry *dentry, struct nfs_fh *fh, struct nfs_fattr *fattr); 415af22f94ae02ab9dd4fd7fe628c8434a59cc293beTrond Myklebustextern int nfs_may_open(struct inode *inode, struct rpc_cred *cred, int openflags); 416af22f94ae02ab9dd4fd7fe628c8434a59cc293beTrond Myklebustextern void nfs_access_zap_cache(struct inode *inode); 4171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 4191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * linux/fs/nfs/symlink.c 4201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 421c5ef1c42c51b1b5b4a401a6517bdda30933ddbafArjan van de Venextern const struct inode_operations nfs_symlink_inode_operations; 4221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 424a72b44222d222749d54b3e370d825094352e389fTrond Myklebust * linux/fs/nfs/sysctl.c 425a72b44222d222749d54b3e370d825094352e389fTrond Myklebust */ 426a72b44222d222749d54b3e370d825094352e389fTrond Myklebust#ifdef CONFIG_SYSCTL 427a72b44222d222749d54b3e370d825094352e389fTrond Myklebustextern int nfs_register_sysctl(void); 428a72b44222d222749d54b3e370d825094352e389fTrond Myklebustextern void nfs_unregister_sysctl(void); 429a72b44222d222749d54b3e370d825094352e389fTrond Myklebust#else 4307fd105e758c8d746d57ab7e77f100e096bf153c8Stephen Rothwell#define nfs_register_sysctl() 0 431a72b44222d222749d54b3e370d825094352e389fTrond Myklebust#define nfs_unregister_sysctl() do { } while(0) 432a72b44222d222749d54b3e370d825094352e389fTrond Myklebust#endif 433a72b44222d222749d54b3e370d825094352e389fTrond Myklebust 434a72b44222d222749d54b3e370d825094352e389fTrond Myklebust/* 43555a975937d40cac582e981ddc8ed783b3dcc043cTrond Myklebust * linux/fs/nfs/namespace.c 43655a975937d40cac582e981ddc8ed783b3dcc043cTrond Myklebust */ 437c5ef1c42c51b1b5b4a401a6517bdda30933ddbafArjan van de Venextern const struct inode_operations nfs_mountpoint_inode_operations; 438c5ef1c42c51b1b5b4a401a6517bdda30933ddbafArjan van de Venextern const struct inode_operations nfs_referral_inode_operations; 43951d8fa6a109589d522c18a8e9bf3fb167a91b1bcTrond Myklebustextern int nfs_mountpoint_expiry_timeout; 44051d8fa6a109589d522c18a8e9bf3fb167a91b1bcTrond Myklebustextern void nfs_release_automount_timer(void); 44155a975937d40cac582e981ddc8ed783b3dcc043cTrond Myklebust 44255a975937d40cac582e981ddc8ed783b3dcc043cTrond Myklebust/* 4431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * linux/fs/nfs/unlink.c 4441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 445e4eff1a622edd6ab7b73acd5d8763aa2fa3fee49Trond Myklebustextern int nfs_async_unlink(struct inode *dir, struct dentry *dentry); 446e4eff1a622edd6ab7b73acd5d8763aa2fa3fee49Trond Myklebustextern void nfs_complete_unlink(struct dentry *dentry, struct inode *); 447565277f63c616e11c37309a1e98c052d18ebbb55Trond Myklebustextern void nfs_block_sillyrename(struct dentry *dentry); 448565277f63c616e11c37309a1e98c052d18ebbb55Trond Myklebustextern void nfs_unblock_sillyrename(struct dentry *dentry); 4491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 4511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * linux/fs/nfs/write.c 4521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 45389a09141df6ac1c3821fbe44ca8384eb37692965Peter Zijlstraextern int nfs_congestion_kb; 4541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern int nfs_writepage(struct page *page, struct writeback_control *wbc); 4551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern int nfs_writepages(struct address_space *, struct writeback_control *); 4561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern int nfs_flush_incompatible(struct file *file, struct page *page); 4571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern int nfs_updatepage(struct file *, struct page *, unsigned int, unsigned int); 458462d5b3296b56289efec426499a83faad4c08d9eChuck Leverextern int nfs_writeback_done(struct rpc_task *, struct nfs_write_data *); 459462d5b3296b56289efec426499a83faad4c08d9eChuck Leverextern void nfs_writedata_release(void *); 4601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 4621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Try to write back everything synchronously (but check the 4631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * return value!) 4641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4651c75950b9a2254ef08f986e00ad20266ae9ba7f1Trond Myklebustextern long nfs_sync_mapping_wait(struct address_space *, struct writeback_control *, int); 4661c75950b9a2254ef08f986e00ad20266ae9ba7f1Trond Myklebustextern int nfs_wb_all(struct inode *inode); 467ed90ef51a33f572fa7d00c8b05f7457be727e74fTrond Myklebustextern int nfs_wb_nocommit(struct inode *inode); 4681c75950b9a2254ef08f986e00ad20266ae9ba7f1Trond Myklebustextern int nfs_wb_page(struct inode *inode, struct page* page); 4691b3b4a1a2deb7d3e5d66063bd76304d840c966b3Trond Myklebustextern int nfs_wb_page_cancel(struct inode *inode, struct page* page); 4701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#if defined(CONFIG_NFS_V3) || defined(CONFIG_NFS_V4) 4713da28eb1c6545fe73263a24eba0996217490e1ebTrond Myklebustextern int nfs_commit_inode(struct inode *, int); 472c9d8f89d9816c1d16ada492aa547a4d692508c0dTrond Myklebustextern struct nfs_write_data *nfs_commitdata_alloc(void); 4738aca67f0ae2d8811165c22326825a645cc8e1b48Trond Myklebustextern void nfs_commit_free(struct nfs_write_data *wdata); 474c9d8f89d9816c1d16ada492aa547a4d692508c0dTrond Myklebustextern void nfs_commitdata_release(void *wdata); 4751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#else 4761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic inline int 4773da28eb1c6545fe73263a24eba0996217490e1ebTrond Myklebustnfs_commit_inode(struct inode *inode, int how) 4781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 4791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return 0; 4801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 4821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic inline int 4841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsnfs_have_writebacks(struct inode *inode) 4851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 4861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return NFS_I(inode)->npages != 0; 4871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 4881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 490e4e20512cfe0bacec0764b4925889d1fa94644f9Adrian Bunk * Allocate nfs_write_data structures 4911da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4928d5658c949e6d89edc579a1f112aeee3bc232a8eTrond Myklebustextern struct nfs_write_data *nfs_writedata_alloc(unsigned int npages); 4931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 4941da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 4951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * linux/fs/nfs/read.c 4961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 4971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern int nfs_readpage(struct file *, struct page *); 4981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern int nfs_readpages(struct file *, struct address_space *, 4991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct list_head *, unsigned); 500ec06c096edec0755534c7126f4caded69de131c2Trond Myklebustextern int nfs_readpage_result(struct rpc_task *, struct nfs_read_data *); 501ec06c096edec0755534c7126f4caded69de131c2Trond Myklebustextern void nfs_readdata_release(void *data); 502963d8fe53339128ee46a7701f2e36305f0ccff8cTrond Myklebust 5031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 504e4e20512cfe0bacec0764b4925889d1fa94644f9Adrian Bunk * Allocate nfs_read_data structures 5051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5068d5658c949e6d89edc579a1f112aeee3bc232a8eTrond Myklebustextern struct nfs_read_data *nfs_readdata_alloc(unsigned int npages); 5071da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5081da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 509b7fa0554cf1ba6d6895cd0a5b02989a26e0bc704Andreas Gruenbacher * linux/fs/nfs3proc.c 510b7fa0554cf1ba6d6895cd0a5b02989a26e0bc704Andreas Gruenbacher */ 511b7fa0554cf1ba6d6895cd0a5b02989a26e0bc704Andreas Gruenbacher#ifdef CONFIG_NFS_V3_ACL 512b7fa0554cf1ba6d6895cd0a5b02989a26e0bc704Andreas Gruenbacherextern struct posix_acl *nfs3_proc_getacl(struct inode *inode, int type); 513b7fa0554cf1ba6d6895cd0a5b02989a26e0bc704Andreas Gruenbacherextern int nfs3_proc_setacl(struct inode *inode, int type, 514b7fa0554cf1ba6d6895cd0a5b02989a26e0bc704Andreas Gruenbacher struct posix_acl *acl); 515055ffbea0596942579b0dae71d5dab78de8135f6Andreas Gruenbacherextern int nfs3_proc_set_default_acl(struct inode *dir, struct inode *inode, 516055ffbea0596942579b0dae71d5dab78de8135f6Andreas Gruenbacher mode_t mode); 5175c6a9f7d92291c832d47e792ed1fafa44acb066eAndreas Gruenbacherextern void nfs3_forget_cached_acls(struct inode *inode); 518055ffbea0596942579b0dae71d5dab78de8135f6Andreas Gruenbacher#else 519055ffbea0596942579b0dae71d5dab78de8135f6Andreas Gruenbacherstatic inline int nfs3_proc_set_default_acl(struct inode *dir, 520055ffbea0596942579b0dae71d5dab78de8135f6Andreas Gruenbacher struct inode *inode, 521055ffbea0596942579b0dae71d5dab78de8135f6Andreas Gruenbacher mode_t mode) 522055ffbea0596942579b0dae71d5dab78de8135f6Andreas Gruenbacher{ 523055ffbea0596942579b0dae71d5dab78de8135f6Andreas Gruenbacher return 0; 524055ffbea0596942579b0dae71d5dab78de8135f6Andreas Gruenbacher} 5255c6a9f7d92291c832d47e792ed1fafa44acb066eAndreas Gruenbacher 5265c6a9f7d92291c832d47e792ed1fafa44acb066eAndreas Gruenbacherstatic inline void nfs3_forget_cached_acls(struct inode *inode) 5275c6a9f7d92291c832d47e792ed1fafa44acb066eAndreas Gruenbacher{ 5285c6a9f7d92291c832d47e792ed1fafa44acb066eAndreas Gruenbacher} 529b7fa0554cf1ba6d6895cd0a5b02989a26e0bc704Andreas Gruenbacher#endif /* CONFIG_NFS_V3_ACL */ 530b7fa0554cf1ba6d6895cd0a5b02989a26e0bc704Andreas Gruenbacher 531b7fa0554cf1ba6d6895cd0a5b02989a26e0bc704Andreas Gruenbacher/* 5321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * linux/fs/mount_clnt.c 5331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5343ea97309e6b18bce200211b3f9188e8023321adcChuck Leverextern int nfs_mount(struct sockaddr *, size_t, char *, char *, 5353ea97309e6b18bce200211b3f9188e8023321adcChuck Lever int, int, struct nfs_fh *); 5361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 5381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * inline functions 5391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 541433c92379d9c2c59c2ebc7628fe4fb02cfc2daf8Chuck Leverstatic inline loff_t nfs_size_to_loff_t(__u64 size) 5421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 543433c92379d9c2c59c2ebc7628fe4fb02cfc2daf8Chuck Lever if (size > (__u64) OFFSET_MAX - 1) 544433c92379d9c2c59c2ebc7628fe4fb02cfc2daf8Chuck Lever return OFFSET_MAX - 1; 5451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return (loff_t) size; 5461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstatic inline ino_t 5491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsnfs_fileid_to_ino_t(u64 fileid) 5501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 5511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ino_t ino = (ino_t) fileid; 5521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (sizeof(ino_t) < sizeof(u64)) 5531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds ino ^= fileid >> (sizeof(u64)-sizeof(ino_t)) * 8; 5541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds return ino; 5551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 5561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* NFS root */ 5581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern void * nfs_root_data(void); 5601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define nfs_wait_event(clnt, wq, condition) \ 5621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds({ \ 563150030b78a454ba50d5e267b0dcf01b162809192Matthew Wilcox int __retval = wait_event_killable(wq, condition); \ 5641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __retval; \ 5651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}) 5661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define NFS_JUKEBOX_RETRY_TIME (5 * HZ) 5681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* __KERNEL__ */ 5701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 5721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * NFS debug flags 5731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 5741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define NFSDBG_VFS 0x0001 5751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define NFSDBG_DIRCACHE 0x0002 5761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define NFSDBG_LOOKUPCACHE 0x0004 5771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define NFSDBG_PAGECACHE 0x0008 5781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define NFSDBG_PROC 0x0010 5791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define NFSDBG_XDR 0x0020 5801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define NFSDBG_FILE 0x0040 5811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define NFSDBG_ROOT 0x0080 5821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define NFSDBG_CALLBACK 0x0100 58324c8dbbb5f777187d660393599641ab3307b4b97David Howells#define NFSDBG_CLIENT 0x0200 584f18289931d705f9c4634b361341a1677bea97acaChuck Lever#define NFSDBG_MOUNT 0x0400 5851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define NFSDBG_ALL 0xFFFF 5861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 5871da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifdef __KERNEL__ 5884dc2eaecd4cf0687727e418540bccf956a62ebcfBenny Halevy 5894dc2eaecd4cf0687727e418540bccf956a62ebcfBenny Halevy/* 5904dc2eaecd4cf0687727e418540bccf956a62ebcfBenny Halevy * Enable debugging support for nfs client. 5914dc2eaecd4cf0687727e418540bccf956a62ebcfBenny Halevy * Requires RPC_DEBUG. 5924dc2eaecd4cf0687727e418540bccf956a62ebcfBenny Halevy */ 5934dc2eaecd4cf0687727e418540bccf956a62ebcfBenny Halevy#ifdef RPC_DEBUG 5944dc2eaecd4cf0687727e418540bccf956a62ebcfBenny Halevy# define NFS_DEBUG 5954dc2eaecd4cf0687727e418540bccf956a62ebcfBenny Halevy#endif 5964dc2eaecd4cf0687727e418540bccf956a62ebcfBenny Halevy 5971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds# undef ifdebug 5981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds# ifdef NFS_DEBUG 5991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds# define ifdebug(fac) if (unlikely(nfs_debug & NFSDBG_##fac)) 6001da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds# else 6011da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds# define ifdebug(fac) if (0) 6021da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds# endif 6031da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* __KERNEL */ 6041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 6051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif 606