1b2441318SGreg Kroah-Hartman /* SPDX-License-Identifier: GPL-2.0 */ 2575e9461SMike Marshall /* 3575e9461SMike Marshall * (C) 2001 Clemson University and The University of Chicago 4575e9461SMike Marshall * 5575e9461SMike Marshall * See COPYING in top-level directory. 6575e9461SMike Marshall */ 7575e9461SMike Marshall 8575e9461SMike Marshall /* 9575e9461SMike Marshall * The ORANGEFS Linux kernel support allows ORANGEFS volumes to be mounted and 10575e9461SMike Marshall * accessed through the Linux VFS (i.e. using standard I/O system calls). 11575e9461SMike Marshall * This support is only needed on clients that wish to mount the file system. 12575e9461SMike Marshall * 13575e9461SMike Marshall */ 14575e9461SMike Marshall 15575e9461SMike Marshall /* 16575e9461SMike Marshall * Declarations and macros for the ORANGEFS Linux kernel support. 17575e9461SMike Marshall */ 18575e9461SMike Marshall 19575e9461SMike Marshall #ifndef __ORANGEFSKERNEL_H 20575e9461SMike Marshall #define __ORANGEFSKERNEL_H 21575e9461SMike Marshall 22575e9461SMike Marshall #include <linux/kernel.h> 23575e9461SMike Marshall #include <linux/moduleparam.h> 24575e9461SMike Marshall #include <linux/statfs.h> 25575e9461SMike Marshall #include <linux/backing-dev.h> 26575e9461SMike Marshall #include <linux/device.h> 27575e9461SMike Marshall #include <linux/mpage.h> 28575e9461SMike Marshall #include <linux/namei.h> 29575e9461SMike Marshall #include <linux/errno.h> 30575e9461SMike Marshall #include <linux/init.h> 31575e9461SMike Marshall #include <linux/module.h> 32575e9461SMike Marshall #include <linux/slab.h> 33575e9461SMike Marshall #include <linux/types.h> 34575e9461SMike Marshall #include <linux/fs.h> 35575e9461SMike Marshall #include <linux/vmalloc.h> 36575e9461SMike Marshall 37575e9461SMike Marshall #include <linux/aio.h> 38575e9461SMike Marshall #include <linux/posix_acl.h> 39575e9461SMike Marshall #include <linux/posix_acl_xattr.h> 40575e9461SMike Marshall #include <linux/compat.h> 41575e9461SMike Marshall #include <linux/mount.h> 42575e9461SMike Marshall #include <linux/uaccess.h> 43575e9461SMike Marshall #include <linux/atomic.h> 44575e9461SMike Marshall #include <linux/uio.h> 45174cd4b1SIngo Molnar #include <linux/sched/signal.h> 46575e9461SMike Marshall #include <linux/mm.h> 47575e9461SMike Marshall #include <linux/wait.h> 48575e9461SMike Marshall #include <linux/dcache.h> 49575e9461SMike Marshall #include <linux/pagemap.h> 50575e9461SMike Marshall #include <linux/poll.h> 51575e9461SMike Marshall #include <linux/rwsem.h> 52575e9461SMike Marshall #include <linux/xattr.h> 53575e9461SMike Marshall #include <linux/exportfs.h> 54fc2e2e9cSMartin Brandenburg #include <linux/hashtable.h> 55575e9461SMike Marshall 56575e9461SMike Marshall #include <asm/unaligned.h> 57575e9461SMike Marshall 58575e9461SMike Marshall #include "orangefs-dev-proto.h" 59575e9461SMike Marshall 60575e9461SMike Marshall #define ORANGEFS_DEFAULT_OP_TIMEOUT_SECS 20 61575e9461SMike Marshall 62575e9461SMike Marshall #define ORANGEFS_BUFMAP_WAIT_TIMEOUT_SECS 30 63575e9461SMike Marshall 64575e9461SMike Marshall #define ORANGEFS_DEFAULT_SLOT_TIMEOUT_SECS 900 /* 15 minutes */ 65575e9461SMike Marshall 66575e9461SMike Marshall #define ORANGEFS_REQDEVICE_NAME "pvfs2-req" 67575e9461SMike Marshall 68575e9461SMike Marshall #define ORANGEFS_DEVREQ_MAGIC 0x20030529 69575e9461SMike Marshall #define ORANGEFS_PURGE_RETRY_COUNT 0x00000005 70575e9461SMike Marshall 71575e9461SMike Marshall #define MAX_DEV_REQ_UPSIZE (2 * sizeof(__s32) + \ 72575e9461SMike Marshall sizeof(__u64) + sizeof(struct orangefs_upcall_s)) 73575e9461SMike Marshall #define MAX_DEV_REQ_DOWNSIZE (2 * sizeof(__s32) + \ 74575e9461SMike Marshall sizeof(__u64) + sizeof(struct orangefs_downcall_s)) 75575e9461SMike Marshall 76575e9461SMike Marshall /* 77575e9461SMike Marshall * valid orangefs kernel operation states 78575e9461SMike Marshall * 79575e9461SMike Marshall * unknown - op was just initialized 80575e9461SMike Marshall * waiting - op is on request_list (upward bound) 81575e9461SMike Marshall * inprogr - op is in progress (waiting for downcall) 82575e9461SMike Marshall * serviced - op has matching downcall; ok 83575e9461SMike Marshall * purged - op has to start a timer since client-core 84575e9461SMike Marshall * exited uncleanly before servicing op 85ed42fe05SAl Viro * given up - submitter has given up waiting for it 86575e9461SMike Marshall */ 87575e9461SMike Marshall enum orangefs_vfs_op_states { 88575e9461SMike Marshall OP_VFS_STATE_UNKNOWN = 0, 89575e9461SMike Marshall OP_VFS_STATE_WAITING = 1, 90575e9461SMike Marshall OP_VFS_STATE_INPROGR = 2, 91575e9461SMike Marshall OP_VFS_STATE_SERVICED = 4, 92575e9461SMike Marshall OP_VFS_STATE_PURGED = 8, 93ed42fe05SAl Viro OP_VFS_STATE_GIVEN_UP = 16, 94575e9461SMike Marshall }; 95575e9461SMike Marshall 96575e9461SMike Marshall /* 97575e9461SMike Marshall * orangefs kernel memory related flags 98575e9461SMike Marshall */ 99575e9461SMike Marshall 100538e3048SMartin Brandenburg #if (defined CONFIG_DEBUG_SLAB) 101575e9461SMike Marshall #define ORANGEFS_CACHE_CREATE_FLAGS SLAB_RED_ZONE 102575e9461SMike Marshall #else 103575e9461SMike Marshall #define ORANGEFS_CACHE_CREATE_FLAGS 0 104538e3048SMartin Brandenburg #endif 105575e9461SMike Marshall 106575e9461SMike Marshall extern const struct xattr_handler *orangefs_xattr_handlers[]; 107575e9461SMike Marshall 1080cad6246SMiklos Szeredi extern struct posix_acl *orangefs_get_acl(struct inode *inode, int type, bool rcu); 109549c7297SChristian Brauner extern int orangefs_set_acl(struct user_namespace *mnt_userns, 110138060baSChristian Brauner struct dentry *dentry, struct posix_acl *acl, 111549c7297SChristian Brauner int type); 1124053d250SChristian Brauner int __orangefs_set_acl(struct inode *inode, struct posix_acl *acl, int type); 113575e9461SMike Marshall 114575e9461SMike Marshall /* 115575e9461SMike Marshall * orangefs data structures 116575e9461SMike Marshall */ 117575e9461SMike Marshall struct orangefs_kernel_op_s { 118575e9461SMike Marshall enum orangefs_vfs_op_states op_state; 119575e9461SMike Marshall __u64 tag; 120575e9461SMike Marshall 121575e9461SMike Marshall /* 122d37c0f30SMike Marshall * Set uses_shared_memory to non zero if this operation uses 123d37c0f30SMike Marshall * shared memory. If true, then a retry on the op must also 124d37c0f30SMike Marshall * get a new shared memory buffer and re-populate it. 125d37c0f30SMike Marshall * Cancels don't care - it only matters for service_operation() 126d37c0f30SMike Marshall * retry logics and cancels don't go through it anymore. It 127d37c0f30SMike Marshall * safely stays non-zero when we use it as slot_to_free. 128575e9461SMike Marshall */ 12978699e29SAl Viro union { 130575e9461SMike Marshall int uses_shared_memory; 13178699e29SAl Viro int slot_to_free; 13278699e29SAl Viro }; 133575e9461SMike Marshall 134575e9461SMike Marshall struct orangefs_upcall_s upcall; 135575e9461SMike Marshall struct orangefs_downcall_s downcall; 136575e9461SMike Marshall 137d2d87a3bSAl Viro struct completion waitq; 138575e9461SMike Marshall spinlock_t lock; 139575e9461SMike Marshall 140575e9461SMike Marshall int attempts; 141575e9461SMike Marshall 142575e9461SMike Marshall struct list_head list; 143575e9461SMike Marshall }; 144575e9461SMike Marshall 14560831949SAl Viro #define set_op_state_waiting(op) ((op)->op_state = OP_VFS_STATE_WAITING) 14660831949SAl Viro #define set_op_state_inprogress(op) ((op)->op_state = OP_VFS_STATE_INPROGR) 1472d4cae0dSMike Marshall #define set_op_state_given_up(op) ((op)->op_state = OP_VFS_STATE_GIVEN_UP) 14860831949SAl Viro static inline void set_op_state_serviced(struct orangefs_kernel_op_s *op) 14960831949SAl Viro { 15060831949SAl Viro op->op_state = OP_VFS_STATE_SERVICED; 151d2d87a3bSAl Viro complete(&op->waitq); 15260831949SAl Viro } 15360831949SAl Viro 15460831949SAl Viro #define op_state_waiting(op) ((op)->op_state & OP_VFS_STATE_WAITING) 15560831949SAl Viro #define op_state_in_progress(op) ((op)->op_state & OP_VFS_STATE_INPROGR) 15660831949SAl Viro #define op_state_serviced(op) ((op)->op_state & OP_VFS_STATE_SERVICED) 15760831949SAl Viro #define op_state_purged(op) ((op)->op_state & OP_VFS_STATE_PURGED) 158ed42fe05SAl Viro #define op_state_given_up(op) ((op)->op_state & OP_VFS_STATE_GIVEN_UP) 15978699e29SAl Viro #define op_is_cancel(op) ((op)->upcall.type == ORANGEFS_VFS_OP_CANCEL) 160ed42fe05SAl Viro 161c1223ca4SAl Viro void op_release(struct orangefs_kernel_op_s *op); 16260831949SAl Viro 16378699e29SAl Viro extern void orangefs_bufmap_put(int); 16478699e29SAl Viro static inline void put_cancel(struct orangefs_kernel_op_s *op) 16578699e29SAl Viro { 16678699e29SAl Viro orangefs_bufmap_put(op->slot_to_free); 16778699e29SAl Viro op_release(op); 16878699e29SAl Viro } 16978699e29SAl Viro 17078699e29SAl Viro static inline void set_op_state_purged(struct orangefs_kernel_op_s *op) 17178699e29SAl Viro { 17278699e29SAl Viro spin_lock(&op->lock); 17378699e29SAl Viro if (unlikely(op_is_cancel(op))) { 17405a50a5bSAl Viro list_del_init(&op->list); 17578699e29SAl Viro spin_unlock(&op->lock); 17678699e29SAl Viro put_cancel(op); 17778699e29SAl Viro } else { 17878699e29SAl Viro op->op_state |= OP_VFS_STATE_PURGED; 179d2d87a3bSAl Viro complete(&op->waitq); 18078699e29SAl Viro spin_unlock(&op->lock); 18178699e29SAl Viro } 18278699e29SAl Viro } 18378699e29SAl Viro 184575e9461SMike Marshall /* per inode private orangefs info */ 185575e9461SMike Marshall struct orangefs_inode_s { 186575e9461SMike Marshall struct orangefs_object_kref refn; 187575e9461SMike Marshall char link_target[ORANGEFS_NAME_MAX]; 188575e9461SMike Marshall /* 189575e9461SMike Marshall * Reading/Writing Extended attributes need to acquire the appropriate 190575e9461SMike Marshall * reader/writer semaphore on the orangefs_inode_s structure. 191575e9461SMike Marshall */ 192575e9461SMike Marshall struct rw_semaphore xattr_sem; 193575e9461SMike Marshall 194575e9461SMike Marshall struct inode vfs_inode; 195575e9461SMike Marshall sector_t last_failed_block_index_read; 196575e9461SMike Marshall 19771680c18SMartin Brandenburg unsigned long getattr_time; 1988f04e1beSMartin Brandenburg unsigned long mapping_time; 199afd9fb2aSMartin Brandenburg int attr_valid; 200afd9fb2aSMartin Brandenburg kuid_t attr_uid; 201afd9fb2aSMartin Brandenburg kgid_t attr_gid; 2028f04e1beSMartin Brandenburg unsigned long bitlock; 203fc2e2e9cSMartin Brandenburg 204fc2e2e9cSMartin Brandenburg DECLARE_HASHTABLE(xattr_cache, 4); 205575e9461SMike Marshall }; 206575e9461SMike Marshall 207575e9461SMike Marshall /* per superblock private orangefs info */ 208575e9461SMike Marshall struct orangefs_sb_info_s { 209575e9461SMike Marshall struct orangefs_khandle root_khandle; 210575e9461SMike Marshall __s32 fs_id; 211575e9461SMike Marshall int id; 212575e9461SMike Marshall int flags; 213575e9461SMike Marshall #define ORANGEFS_OPT_INTR 0x01 214575e9461SMike Marshall #define ORANGEFS_OPT_LOCAL_LOCK 0x02 215575e9461SMike Marshall char devname[ORANGEFS_MAX_SERVER_ADDR_LEN]; 216575e9461SMike Marshall struct super_block *sb; 217575e9461SMike Marshall int mount_pending; 2181ec1688cSMartin Brandenburg int no_list; 219575e9461SMike Marshall struct list_head list; 220575e9461SMike Marshall }; 221575e9461SMike Marshall 222575e9461SMike Marshall struct orangefs_stats { 223575e9461SMike Marshall unsigned long cache_hits; 224575e9461SMike Marshall unsigned long cache_misses; 225575e9461SMike Marshall unsigned long reads; 226575e9461SMike Marshall unsigned long writes; 227575e9461SMike Marshall }; 228575e9461SMike Marshall 229fc2e2e9cSMartin Brandenburg struct orangefs_cached_xattr { 230fc2e2e9cSMartin Brandenburg struct hlist_node node; 231fc2e2e9cSMartin Brandenburg char key[ORANGEFS_MAX_XATTR_NAMELEN]; 232fc2e2e9cSMartin Brandenburg char val[ORANGEFS_MAX_XATTR_VALUELEN]; 233fc2e2e9cSMartin Brandenburg ssize_t length; 234fc2e2e9cSMartin Brandenburg unsigned long timeout; 235fc2e2e9cSMartin Brandenburg }; 236fc2e2e9cSMartin Brandenburg 23752e2d0a3SMartin Brandenburg struct orangefs_write_range { 23852e2d0a3SMartin Brandenburg loff_t pos; 23952e2d0a3SMartin Brandenburg size_t len; 24052e2d0a3SMartin Brandenburg kuid_t uid; 24152e2d0a3SMartin Brandenburg kgid_t gid; 24252e2d0a3SMartin Brandenburg }; 24352e2d0a3SMartin Brandenburg 244889d5f1bSMartin Brandenburg extern struct orangefs_stats orangefs_stats; 245575e9461SMike Marshall 246575e9461SMike Marshall /* 24725b532ceSMauro Carvalho Chehab * NOTE: See Documentation/filesystems/porting.rst for information 248575e9461SMike Marshall * on implementing FOO_I and properly accessing fs private data 249575e9461SMike Marshall */ 250575e9461SMike Marshall static inline struct orangefs_inode_s *ORANGEFS_I(struct inode *inode) 251575e9461SMike Marshall { 252575e9461SMike Marshall return container_of(inode, struct orangefs_inode_s, vfs_inode); 253575e9461SMike Marshall } 254575e9461SMike Marshall 255575e9461SMike Marshall static inline struct orangefs_sb_info_s *ORANGEFS_SB(struct super_block *sb) 256575e9461SMike Marshall { 257575e9461SMike Marshall return (struct orangefs_sb_info_s *) sb->s_fs_info; 258575e9461SMike Marshall } 259575e9461SMike Marshall 260575e9461SMike Marshall /* ino_t descends from "unsigned long", 8 bytes, 64 bits. */ 261575e9461SMike Marshall static inline ino_t orangefs_khandle_to_ino(struct orangefs_khandle *khandle) 262575e9461SMike Marshall { 263575e9461SMike Marshall union { 264575e9461SMike Marshall unsigned char u[8]; 265575e9461SMike Marshall __u64 ino; 266575e9461SMike Marshall } ihandle; 267575e9461SMike Marshall 268575e9461SMike Marshall ihandle.u[0] = khandle->u[0] ^ khandle->u[4]; 269575e9461SMike Marshall ihandle.u[1] = khandle->u[1] ^ khandle->u[5]; 270575e9461SMike Marshall ihandle.u[2] = khandle->u[2] ^ khandle->u[6]; 271575e9461SMike Marshall ihandle.u[3] = khandle->u[3] ^ khandle->u[7]; 272575e9461SMike Marshall ihandle.u[4] = khandle->u[12] ^ khandle->u[8]; 273575e9461SMike Marshall ihandle.u[5] = khandle->u[13] ^ khandle->u[9]; 274575e9461SMike Marshall ihandle.u[6] = khandle->u[14] ^ khandle->u[10]; 275575e9461SMike Marshall ihandle.u[7] = khandle->u[15] ^ khandle->u[11]; 276575e9461SMike Marshall 277575e9461SMike Marshall return ihandle.ino; 278575e9461SMike Marshall } 279575e9461SMike Marshall 280575e9461SMike Marshall static inline struct orangefs_khandle *get_khandle_from_ino(struct inode *inode) 281575e9461SMike Marshall { 282575e9461SMike Marshall return &(ORANGEFS_I(inode)->refn.khandle); 283575e9461SMike Marshall } 284575e9461SMike Marshall 285575e9461SMike Marshall static inline int is_root_handle(struct inode *inode) 286575e9461SMike Marshall { 287575e9461SMike Marshall gossip_debug(GOSSIP_DCACHE_DEBUG, 288575e9461SMike Marshall "%s: root handle: %pU, this handle: %pU:\n", 289575e9461SMike Marshall __func__, 290575e9461SMike Marshall &ORANGEFS_SB(inode->i_sb)->root_khandle, 291575e9461SMike Marshall get_khandle_from_ino(inode)); 292575e9461SMike Marshall 293575e9461SMike Marshall if (ORANGEFS_khandle_cmp(&(ORANGEFS_SB(inode->i_sb)->root_khandle), 294575e9461SMike Marshall get_khandle_from_ino(inode))) 295575e9461SMike Marshall return 0; 296575e9461SMike Marshall else 297575e9461SMike Marshall return 1; 298575e9461SMike Marshall } 299575e9461SMike Marshall 300575e9461SMike Marshall static inline int match_handle(struct orangefs_khandle resp_handle, 301575e9461SMike Marshall struct inode *inode) 302575e9461SMike Marshall { 303575e9461SMike Marshall gossip_debug(GOSSIP_DCACHE_DEBUG, 304575e9461SMike Marshall "%s: one handle: %pU, another handle:%pU:\n", 305575e9461SMike Marshall __func__, 306575e9461SMike Marshall &resp_handle, 307575e9461SMike Marshall get_khandle_from_ino(inode)); 308575e9461SMike Marshall 309575e9461SMike Marshall if (ORANGEFS_khandle_cmp(&resp_handle, get_khandle_from_ino(inode))) 310575e9461SMike Marshall return 0; 311575e9461SMike Marshall else 312575e9461SMike Marshall return 1; 313575e9461SMike Marshall } 314575e9461SMike Marshall 315575e9461SMike Marshall /* 316575e9461SMike Marshall * defined in orangefs-cache.c 317575e9461SMike Marshall */ 318575e9461SMike Marshall int op_cache_initialize(void); 319575e9461SMike Marshall int op_cache_finalize(void); 320575e9461SMike Marshall struct orangefs_kernel_op_s *op_alloc(__s32 type); 32178699e29SAl Viro void orangefs_new_tag(struct orangefs_kernel_op_s *op); 322575e9461SMike Marshall char *get_opname_string(struct orangefs_kernel_op_s *new_op); 323575e9461SMike Marshall 324575e9461SMike Marshall int orangefs_inode_cache_initialize(void); 325575e9461SMike Marshall int orangefs_inode_cache_finalize(void); 326575e9461SMike Marshall 327575e9461SMike Marshall /* 328575e9461SMike Marshall * defined in orangefs-mod.c 329575e9461SMike Marshall */ 330575e9461SMike Marshall void purge_inprogress_ops(void); 331575e9461SMike Marshall 332575e9461SMike Marshall /* 333575e9461SMike Marshall * defined in waitqueue.c 334575e9461SMike Marshall */ 335575e9461SMike Marshall void purge_waiting_ops(void); 336575e9461SMike Marshall 337575e9461SMike Marshall /* 338575e9461SMike Marshall * defined in super.c 339575e9461SMike Marshall */ 340482664ddSMartin Brandenburg extern uint64_t orangefs_features; 341482664ddSMartin Brandenburg 342575e9461SMike Marshall struct dentry *orangefs_mount(struct file_system_type *fst, 343575e9461SMike Marshall int flags, 344575e9461SMike Marshall const char *devname, 345575e9461SMike Marshall void *data); 346575e9461SMike Marshall 347575e9461SMike Marshall void orangefs_kill_sb(struct super_block *sb); 34845996492SAl Viro int orangefs_remount(struct orangefs_sb_info_s *); 349575e9461SMike Marshall 350575e9461SMike Marshall int fsid_key_table_initialize(void); 351575e9461SMike Marshall void fsid_key_table_finalize(void); 352575e9461SMike Marshall 353575e9461SMike Marshall /* 354575e9461SMike Marshall * defined in inode.c 355575e9461SMike Marshall */ 35652e2d0a3SMartin Brandenburg vm_fault_t orangefs_page_mkwrite(struct vm_fault *); 357575e9461SMike Marshall struct inode *orangefs_new_inode(struct super_block *sb, 358575e9461SMike Marshall struct inode *dir, 3594053d250SChristian Brauner umode_t mode, 360575e9461SMike Marshall dev_t dev, 361575e9461SMike Marshall struct orangefs_object_kref *ref); 362575e9461SMike Marshall 363afd9fb2aSMartin Brandenburg int __orangefs_setattr(struct inode *, struct iattr *); 364138060baSChristian Brauner int __orangefs_setattr_mode(struct dentry *dentry, struct iattr *iattr); 365c1632a0fSChristian Brauner int orangefs_setattr(struct mnt_idmap *, struct dentry *, struct iattr *); 366575e9461SMike Marshall 367*b74d24f7SChristian Brauner int orangefs_getattr(struct mnt_idmap *idmap, const struct path *path, 368549c7297SChristian Brauner struct kstat *stat, u32 request_mask, unsigned int flags); 369575e9461SMike Marshall 370549c7297SChristian Brauner int orangefs_permission(struct user_namespace *mnt_userns, 371549c7297SChristian Brauner struct inode *inode, int mask); 372933287daSMartin Brandenburg 37395582b00SDeepa Dinamani int orangefs_update_time(struct inode *, struct timespec64 *, int); 374a55f2d86SMartin Brandenburg 375575e9461SMike Marshall /* 376575e9461SMike Marshall * defined in xattr.c 377575e9461SMike Marshall */ 378575e9461SMike Marshall ssize_t orangefs_listxattr(struct dentry *dentry, char *buffer, size_t size); 379575e9461SMike Marshall 380575e9461SMike Marshall /* 381575e9461SMike Marshall * defined in namei.c 382575e9461SMike Marshall */ 383575e9461SMike Marshall struct inode *orangefs_iget(struct super_block *sb, 384575e9461SMike Marshall struct orangefs_object_kref *ref); 385575e9461SMike Marshall 386575e9461SMike Marshall /* 387575e9461SMike Marshall * defined in devorangefs-req.c 388575e9461SMike Marshall */ 389482664ddSMartin Brandenburg extern uint32_t orangefs_userspace_version; 390f2ee3b75SMartin Brandenburg 391575e9461SMike Marshall int orangefs_dev_init(void); 392575e9461SMike Marshall void orangefs_dev_cleanup(void); 393575e9461SMike Marshall int is_daemon_in_service(void); 39478699e29SAl Viro bool __is_daemon_in_service(void); 395575e9461SMike Marshall 396575e9461SMike Marshall /* 397c453dcfcSMartin Brandenburg * defined in file.c 398c453dcfcSMartin Brandenburg */ 3998f04e1beSMartin Brandenburg int orangefs_revalidate_mapping(struct inode *); 400c453dcfcSMartin Brandenburg ssize_t wait_for_direct_io(enum ORANGEFS_io_type, struct inode *, loff_t *, 401f9bbb682SMike Marshall struct iov_iter *, size_t, loff_t, struct orangefs_write_range *, int *, 402f9bbb682SMike Marshall struct file *); 403c453dcfcSMartin Brandenburg ssize_t do_readv_writev(enum ORANGEFS_io_type, struct file *, loff_t *, 404c453dcfcSMartin Brandenburg struct iov_iter *); 405c453dcfcSMartin Brandenburg 406c453dcfcSMartin Brandenburg /* 407575e9461SMike Marshall * defined in orangefs-utils.c 408575e9461SMike Marshall */ 409575e9461SMike Marshall __s32 fsid_of_op(struct orangefs_kernel_op_s *op); 410575e9461SMike Marshall 411575e9461SMike Marshall ssize_t orangefs_inode_getxattr(struct inode *inode, 412575e9461SMike Marshall const char *name, 413575e9461SMike Marshall void *buffer, 414575e9461SMike Marshall size_t size); 415575e9461SMike Marshall 416575e9461SMike Marshall int orangefs_inode_setxattr(struct inode *inode, 417575e9461SMike Marshall const char *name, 418575e9461SMike Marshall const void *value, 419575e9461SMike Marshall size_t size, 420575e9461SMike Marshall int flags); 421575e9461SMike Marshall 4228b60785cSMartin Brandenburg #define ORANGEFS_GETATTR_NEW 1 4238b60785cSMartin Brandenburg #define ORANGEFS_GETATTR_SIZE 2 4248b60785cSMartin Brandenburg 4258b60785cSMartin Brandenburg int orangefs_inode_getattr(struct inode *, int); 426575e9461SMike Marshall 4275859d77eSMartin Brandenburg int orangefs_inode_check_changed(struct inode *inode); 4285859d77eSMartin Brandenburg 429afd9fb2aSMartin Brandenburg int orangefs_inode_setattr(struct inode *inode); 430575e9461SMike Marshall 43178699e29SAl Viro bool orangefs_cancel_op_in_progress(struct orangefs_kernel_op_s *op); 432575e9461SMike Marshall 433575e9461SMike Marshall int orangefs_normalize_to_errno(__s32 error_code); 434575e9461SMike Marshall 4351d503617SMartin Brandenburg extern struct mutex orangefs_request_mutex; 436575e9461SMike Marshall extern int op_timeout_secs; 437575e9461SMike Marshall extern int slot_timeout_secs; 4388f04e1beSMartin Brandenburg extern int orangefs_cache_timeout_msecs; 4391d503617SMartin Brandenburg extern int orangefs_dcache_timeout_msecs; 4401d503617SMartin Brandenburg extern int orangefs_getattr_timeout_msecs; 441575e9461SMike Marshall extern struct list_head orangefs_superblocks; 442575e9461SMike Marshall extern spinlock_t orangefs_superblocks_lock; 443575e9461SMike Marshall extern struct list_head orangefs_request_list; 444575e9461SMike Marshall extern spinlock_t orangefs_request_list_lock; 445575e9461SMike Marshall extern wait_queue_head_t orangefs_request_list_waitq; 4461d503617SMartin Brandenburg extern struct list_head *orangefs_htable_ops_in_progress; 4471d503617SMartin Brandenburg extern spinlock_t orangefs_htable_ops_in_progress_lock; 448575e9461SMike Marshall extern int hash_table_size; 449575e9461SMike Marshall 450575e9461SMike Marshall extern const struct file_operations orangefs_file_operations; 4516f3fc107SAl Viro extern const struct inode_operations orangefs_symlink_inode_operations; 4526f3fc107SAl Viro extern const struct inode_operations orangefs_dir_inode_operations; 453575e9461SMike Marshall extern const struct file_operations orangefs_dir_operations; 454575e9461SMike Marshall extern const struct dentry_operations orangefs_dentry_operations; 455575e9461SMike Marshall 456575e9461SMike Marshall /* 457575e9461SMike Marshall * misc convenience macros 458575e9461SMike Marshall */ 459575e9461SMike Marshall 460575e9461SMike Marshall #define ORANGEFS_OP_INTERRUPTIBLE 1 /* service_operation() is interruptible */ 461575e9461SMike Marshall #define ORANGEFS_OP_PRIORITY 2 /* service_operation() is high priority */ 462575e9461SMike Marshall #define ORANGEFS_OP_CANCELLATION 4 /* this is a cancellation */ 463adcf34a2SMike Marshall #define ORANGEFS_OP_NO_MUTEX 8 /* don't acquire request_mutex */ 464575e9461SMike Marshall #define ORANGEFS_OP_ASYNC 16 /* Queue it, but don't wait */ 4650dcac0f7SMartin Brandenburg #define ORANGEFS_OP_WRITEBACK 32 466575e9461SMike Marshall 467575e9461SMike Marshall int service_operation(struct orangefs_kernel_op_s *op, 468575e9461SMike Marshall const char *op_name, 469575e9461SMike Marshall int flags); 470575e9461SMike Marshall 471575e9461SMike Marshall #define get_interruptible_flag(inode) \ 472575e9461SMike Marshall ((ORANGEFS_SB(inode->i_sb)->flags & ORANGEFS_OPT_INTR) ? \ 473575e9461SMike Marshall ORANGEFS_OP_INTERRUPTIBLE : 0) 474575e9461SMike Marshall 475575e9461SMike Marshall #define fill_default_sys_attrs(sys_attr, type, mode) \ 476575e9461SMike Marshall do { \ 47778fee0b6SJann Horn sys_attr.owner = from_kuid(&init_user_ns, current_fsuid()); \ 47878fee0b6SJann Horn sys_attr.group = from_kgid(&init_user_ns, current_fsgid()); \ 479575e9461SMike Marshall sys_attr.perms = ORANGEFS_util_translate_mode(mode); \ 48069a23de2SMartin Brandenburg sys_attr.mtime = 0; \ 48169a23de2SMartin Brandenburg sys_attr.atime = 0; \ 48269a23de2SMartin Brandenburg sys_attr.ctime = 0; \ 483575e9461SMike Marshall sys_attr.mask = ORANGEFS_ATTR_SYS_ALL_SETABLE; \ 484575e9461SMike Marshall } while (0) 485575e9461SMike Marshall 486804b1737SMiklos Szeredi static inline void orangefs_set_timeout(struct dentry *dentry) 487804b1737SMiklos Szeredi { 488804b1737SMiklos Szeredi unsigned long time = jiffies + orangefs_dcache_timeout_msecs*HZ/1000; 489804b1737SMiklos Szeredi 490804b1737SMiklos Szeredi dentry->d_fsdata = (void *) time; 491804b1737SMiklos Szeredi } 492804b1737SMiklos Szeredi 493575e9461SMike Marshall #endif /* __ORANGEFSKERNEL_H */ 494