| /* |
| * (C) 2001 Clemson University and The University of Chicago |
| * |
| * See COPYING in top-level directory. |
| */ |
| |
| /* |
| * Linux VFS file operations. |
| */ |
| |
| #include "protocol.h" |
| #include "orangefs-kernel.h" |
| #include "orangefs-bufmap.h" |
| #include <linux/fs.h> |
| #include <linux/pagemap.h> |
| |
| static int flush_racache(struct inode *inode) |
| { |
| struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode); |
| struct orangefs_kernel_op_s *new_op; |
| int ret; |
| |
| gossip_debug(GOSSIP_UTILS_DEBUG, |
| "%s: %pU: Handle is %pU | fs_id %d\n", __func__, |
| get_khandle_from_ino(inode), &orangefs_inode->refn.khandle, |
| orangefs_inode->refn.fs_id); |
| |
| new_op = op_alloc(ORANGEFS_VFS_OP_RA_FLUSH); |
| if (!new_op) |
| return -ENOMEM; |
| new_op->upcall.req.ra_cache_flush.refn = orangefs_inode->refn; |
| |
| ret = service_operation(new_op, "orangefs_flush_racache", |
| get_interruptible_flag(inode)); |
| |
| gossip_debug(GOSSIP_UTILS_DEBUG, "%s: got return value of %d\n", |
| __func__, ret); |
| |
| op_release(new_op); |
| return ret; |
| } |
| |
| /* |
| * Copy to client-core's address space from the buffers specified |
| * by the iovec upto total_size bytes. |
| * NOTE: the iovector can either contain addresses which |
| * can futher be kernel-space or user-space addresses. |
| * or it can pointers to struct page's |
| */ |
| static int precopy_buffers(int buffer_index, |
| struct iov_iter *iter, |
| size_t total_size) |
| { |
| int ret = 0; |
| /* |
| * copy data from application/kernel by pulling it out |
| * of the iovec. |
| */ |
| |
| |
| if (total_size) { |
| ret = orangefs_bufmap_copy_from_iovec(iter, |
| buffer_index, |
| total_size); |
| if (ret < 0) |
| gossip_err("%s: Failed to copy-in buffers. Please make sure that the pvfs2-client is running. %ld\n", |
| __func__, |
| (long)ret); |
| } |
| |
| if (ret < 0) |
| gossip_err("%s: Failed to copy-in buffers. Please make sure that the pvfs2-client is running. %ld\n", |
| __func__, |
| (long)ret); |
| return ret; |
| } |
| |
| /* |
| * Copy from client-core's address space to the buffers specified |
| * by the iovec upto total_size bytes. |
| * NOTE: the iovector can either contain addresses which |
| * can futher be kernel-space or user-space addresses. |
| * or it can pointers to struct page's |
| */ |
| static int postcopy_buffers(int buffer_index, |
| struct iov_iter *iter, |
| size_t total_size) |
| { |
| int ret = 0; |
| /* |
| * copy data to application/kernel by pushing it out to |
| * the iovec. NOTE; target buffers can be addresses or |
| * struct page pointers. |
| */ |
| if (total_size) { |
| ret = orangefs_bufmap_copy_to_iovec(iter, |
| buffer_index, |
| total_size); |
| if (ret < 0) |
| gossip_err("%s: Failed to copy-out buffers. Please make sure that the pvfs2-client is running (%ld)\n", |
| __func__, |
| (long)ret); |
| } |
| return ret; |
| } |
| |
| /* |
| * Post and wait for the I/O upcall to finish |
| */ |
| static ssize_t wait_for_direct_io(enum ORANGEFS_io_type type, struct inode *inode, |
| loff_t *offset, struct iov_iter *iter, |
| size_t total_size, loff_t readahead_size) |
| { |
| struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode); |
| struct orangefs_khandle *handle = &orangefs_inode->refn.khandle; |
| struct orangefs_kernel_op_s *new_op = NULL; |
| struct iov_iter saved = *iter; |
| int buffer_index = -1; |
| ssize_t ret; |
| |
| new_op = op_alloc(ORANGEFS_VFS_OP_FILE_IO); |
| if (!new_op) |
| return -ENOMEM; |
| |
| /* synchronous I/O */ |
| new_op->upcall.req.io.readahead_size = readahead_size; |
| new_op->upcall.req.io.io_type = type; |
| new_op->upcall.req.io.refn = orangefs_inode->refn; |
| |
| populate_shared_memory: |
| /* get a shared buffer index */ |
| buffer_index = orangefs_bufmap_get(); |
| if (buffer_index < 0) { |
| ret = buffer_index; |
| gossip_debug(GOSSIP_FILE_DEBUG, |
| "%s: orangefs_bufmap_get failure (%zd)\n", |
| __func__, ret); |
| goto out; |
| } |
| gossip_debug(GOSSIP_FILE_DEBUG, |
| "%s(%pU): GET op %p -> buffer_index %d\n", |
| __func__, |
| handle, |
| new_op, |
| buffer_index); |
| |
| new_op->uses_shared_memory = 1; |
| new_op->upcall.req.io.buf_index = buffer_index; |
| new_op->upcall.req.io.count = total_size; |
| new_op->upcall.req.io.offset = *offset; |
| |
| gossip_debug(GOSSIP_FILE_DEBUG, |
| "%s(%pU): offset: %llu total_size: %zd\n", |
| __func__, |
| handle, |
| llu(*offset), |
| total_size); |
| /* |
| * Stage 1: copy the buffers into client-core's address space |
| * precopy_buffers only pertains to writes. |
| */ |
| if (type == ORANGEFS_IO_WRITE) { |
| ret = precopy_buffers(buffer_index, |
| iter, |
| total_size); |
| if (ret < 0) |
| goto out; |
| } |
| |
| gossip_debug(GOSSIP_FILE_DEBUG, |
| "%s(%pU): Calling post_io_request with tag (%llu)\n", |
| __func__, |
| handle, |
| llu(new_op->tag)); |
| |
| /* Stage 2: Service the I/O operation */ |
| ret = service_operation(new_op, |
| type == ORANGEFS_IO_WRITE ? |
| "file_write" : |
| "file_read", |
| get_interruptible_flag(inode)); |
| |
| /* |
| * If service_operation() returns -EAGAIN #and# the operation was |
| * purged from orangefs_request_list or htable_ops_in_progress, then |
| * we know that the client was restarted, causing the shared memory |
| * area to be wiped clean. To restart a write operation in this |
| * case, we must re-copy the data from the user's iovec to a NEW |
| * shared memory location. To restart a read operation, we must get |
| * a new shared memory location. |
| */ |
| if (ret == -EAGAIN && op_state_purged(new_op)) { |
| orangefs_bufmap_put(buffer_index); |
| buffer_index = -1; |
| if (type == ORANGEFS_IO_WRITE) |
| *iter = saved; |
| gossip_debug(GOSSIP_FILE_DEBUG, |
| "%s:going to repopulate_shared_memory.\n", |
| __func__); |
| goto populate_shared_memory; |
| } |
| |
| if (ret < 0) { |
| if (ret == -EINTR) { |
| /* |
| * We can't return EINTR if any data was written, |
| * it's not POSIX. It is minimally acceptable |
| * to give a partial write, the way NFS does. |
| * |
| * It would be optimal to return all or nothing, |
| * but if a userspace write is bigger than |
| * an IO buffer, and the interrupt occurs |
| * between buffer writes, that would not be |
| * possible. |
| */ |
| switch (new_op->op_state - OP_VFS_STATE_GIVEN_UP) { |
| /* |
| * If the op was waiting when the interrupt |
| * occurred, then the client-core did not |
| * trigger the write. |
| */ |
| case OP_VFS_STATE_WAITING: |
| if (*offset == 0) |
| ret = -EINTR; |
| else |
| ret = 0; |
| break; |
| /* |
| * If the op was in progress when the interrupt |
| * occurred, then the client-core was able to |
| * trigger the write. |
| */ |
| case OP_VFS_STATE_INPROGR: |
| ret = total_size; |
| break; |
| default: |
| gossip_err("%s: unexpected op state :%d:.\n", |
| __func__, |
| new_op->op_state); |
| ret = 0; |
| break; |
| } |
| gossip_debug(GOSSIP_FILE_DEBUG, |
| "%s: got EINTR, state:%d: %p\n", |
| __func__, |
| new_op->op_state, |
| new_op); |
| } else { |
| gossip_err("%s: error in %s handle %pU, returning %zd\n", |
| __func__, |
| type == ORANGEFS_IO_READ ? |
| "read from" : "write to", |
| handle, ret); |
| } |
| if (orangefs_cancel_op_in_progress(new_op)) |
| return ret; |
| |
| goto out; |
| } |
| |
| /* |
| * Stage 3: Post copy buffers from client-core's address space |
| * postcopy_buffers only pertains to reads. |
| */ |
| if (type == ORANGEFS_IO_READ) { |
| ret = postcopy_buffers(buffer_index, |
| iter, |
| new_op->downcall.resp.io.amt_complete); |
| if (ret < 0) |
| goto out; |
| } |
| gossip_debug(GOSSIP_FILE_DEBUG, |
| "%s(%pU): Amount %s, returned by the sys-io call:%d\n", |
| __func__, |
| handle, |
| type == ORANGEFS_IO_READ ? "read" : "written", |
| (int)new_op->downcall.resp.io.amt_complete); |
| |
| ret = new_op->downcall.resp.io.amt_complete; |
| |
| out: |
| if (buffer_index >= 0) { |
| orangefs_bufmap_put(buffer_index); |
| gossip_debug(GOSSIP_FILE_DEBUG, |
| "%s(%pU): PUT buffer_index %d\n", |
| __func__, handle, buffer_index); |
| buffer_index = -1; |
| } |
| op_release(new_op); |
| return ret; |
| } |
| |
| /* |
| * Common entry point for read/write/readv/writev |
| * This function will dispatch it to either the direct I/O |
| * or buffered I/O path depending on the mount options and/or |
| * augmented/extended metadata attached to the file. |
| * Note: File extended attributes override any mount options. |
| */ |
| static ssize_t do_readv_writev(enum ORANGEFS_io_type type, struct file *file, |
| loff_t *offset, struct iov_iter *iter) |
| { |
| struct inode *inode = file->f_mapping->host; |
| struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode); |
| struct orangefs_khandle *handle = &orangefs_inode->refn.khandle; |
| size_t count = iov_iter_count(iter); |
| ssize_t total_count = 0; |
| ssize_t ret = -EINVAL; |
| |
| gossip_debug(GOSSIP_FILE_DEBUG, |
| "%s-BEGIN(%pU): count(%d) after estimate_max_iovecs.\n", |
| __func__, |
| handle, |
| (int)count); |
| |
| if (type == ORANGEFS_IO_WRITE) { |
| gossip_debug(GOSSIP_FILE_DEBUG, |
| "%s(%pU): proceeding with offset : %llu, " |
| "size %d\n", |
| __func__, |
| handle, |
| llu(*offset), |
| (int)count); |
| } |
| |
| if (count == 0) { |
| ret = 0; |
| goto out; |
| } |
| |
| while (iov_iter_count(iter)) { |
| size_t each_count = iov_iter_count(iter); |
| size_t amt_complete; |
| |
| /* how much to transfer in this loop iteration */ |
| if (each_count > orangefs_bufmap_size_query()) |
| each_count = orangefs_bufmap_size_query(); |
| |
| gossip_debug(GOSSIP_FILE_DEBUG, |
| "%s(%pU): size of each_count(%d)\n", |
| __func__, |
| handle, |
| (int)each_count); |
| gossip_debug(GOSSIP_FILE_DEBUG, |
| "%s(%pU): BEFORE wait_for_io: offset is %d\n", |
| __func__, |
| handle, |
| (int)*offset); |
| |
| ret = wait_for_direct_io(type, inode, offset, iter, |
| each_count, 0); |
| gossip_debug(GOSSIP_FILE_DEBUG, |
| "%s(%pU): return from wait_for_io:%d\n", |
| __func__, |
| handle, |
| (int)ret); |
| |
| if (ret < 0) |
| goto out; |
| |
| *offset += ret; |
| total_count += ret; |
| amt_complete = ret; |
| |
| gossip_debug(GOSSIP_FILE_DEBUG, |
| "%s(%pU): AFTER wait_for_io: offset is %d\n", |
| __func__, |
| handle, |
| (int)*offset); |
| |
| /* |
| * if we got a short I/O operations, |
| * fall out and return what we got so far |
| */ |
| if (amt_complete < each_count) |
| break; |
| } /*end while */ |
| |
| out: |
| if (total_count > 0) |
| ret = total_count; |
| if (ret > 0) { |
| if (type == ORANGEFS_IO_READ) { |
| file_accessed(file); |
| } else { |
| SetMtimeFlag(orangefs_inode); |
| inode->i_mtime = current_time(inode); |
| mark_inode_dirty_sync(inode); |
| } |
| } |
| |
| gossip_debug(GOSSIP_FILE_DEBUG, |
| "%s(%pU): Value(%d) returned.\n", |
| __func__, |
| handle, |
| (int)ret); |
| |
| return ret; |
| } |
| |
| /* |
| * Read data from a specified offset in a file (referenced by inode). |
| * Data may be placed either in a user or kernel buffer. |
| */ |
| ssize_t orangefs_inode_read(struct inode *inode, |
| struct iov_iter *iter, |
| loff_t *offset, |
| loff_t readahead_size) |
| { |
| struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode); |
| size_t count = iov_iter_count(iter); |
| size_t bufmap_size; |
| ssize_t ret = -EINVAL; |
| |
| orangefs_stats.reads++; |
| |
| bufmap_size = orangefs_bufmap_size_query(); |
| if (count > bufmap_size) { |
| gossip_debug(GOSSIP_FILE_DEBUG, |
| "%s: count is too large (%zd/%zd)!\n", |
| __func__, count, bufmap_size); |
| return -EINVAL; |
| } |
| |
| gossip_debug(GOSSIP_FILE_DEBUG, |
| "%s(%pU) %zd@%llu\n", |
| __func__, |
| &orangefs_inode->refn.khandle, |
| count, |
| llu(*offset)); |
| |
| ret = wait_for_direct_io(ORANGEFS_IO_READ, inode, offset, iter, |
| count, readahead_size); |
| if (ret > 0) |
| *offset += ret; |
| |
| gossip_debug(GOSSIP_FILE_DEBUG, |
| "%s(%pU): Value(%zd) returned.\n", |
| __func__, |
| &orangefs_inode->refn.khandle, |
| ret); |
| |
| return ret; |
| } |
| |
| static ssize_t orangefs_file_read_iter(struct kiocb *iocb, struct iov_iter *iter) |
| { |
| struct file *file = iocb->ki_filp; |
| loff_t pos = iocb->ki_pos; |
| ssize_t rc = 0; |
| |
| BUG_ON(iocb->private); |
| |
| gossip_debug(GOSSIP_FILE_DEBUG, "orangefs_file_read_iter\n"); |
| |
| orangefs_stats.reads++; |
| |
| rc = do_readv_writev(ORANGEFS_IO_READ, file, &pos, iter); |
| iocb->ki_pos = pos; |
| |
| return rc; |
| } |
| |
| static ssize_t orangefs_file_write_iter(struct kiocb *iocb, struct iov_iter *iter) |
| { |
| struct file *file = iocb->ki_filp; |
| loff_t pos; |
| ssize_t rc; |
| |
| BUG_ON(iocb->private); |
| |
| gossip_debug(GOSSIP_FILE_DEBUG, "orangefs_file_write_iter\n"); |
| |
| inode_lock(file->f_mapping->host); |
| |
| /* Make sure generic_write_checks sees an up to date inode size. */ |
| if (file->f_flags & O_APPEND) { |
| rc = orangefs_inode_getattr(file->f_mapping->host, 0, 1); |
| if (rc == -ESTALE) |
| rc = -EIO; |
| if (rc) { |
| gossip_err("%s: orangefs_inode_getattr failed, " |
| "rc:%zd:.\n", __func__, rc); |
| goto out; |
| } |
| } |
| |
| rc = generic_write_checks(iocb, iter); |
| |
| if (rc <= 0) { |
| gossip_err("%s: generic_write_checks failed, rc:%zd:.\n", |
| __func__, rc); |
| goto out; |
| } |
| |
| /* |
| * if we are appending, generic_write_checks would have updated |
| * pos to the end of the file, so we will wait till now to set |
| * pos... |
| */ |
| pos = iocb->ki_pos; |
| |
| rc = do_readv_writev(ORANGEFS_IO_WRITE, |
| file, |
| &pos, |
| iter); |
| if (rc < 0) { |
| gossip_err("%s: do_readv_writev failed, rc:%zd:.\n", |
| __func__, rc); |
| goto out; |
| } |
| |
| iocb->ki_pos = pos; |
| orangefs_stats.writes++; |
| |
| out: |
| |
| inode_unlock(file->f_mapping->host); |
| return rc; |
| } |
| |
| /* |
| * Perform a miscellaneous operation on a file. |
| */ |
| static long orangefs_ioctl(struct file *file, unsigned int cmd, unsigned long arg) |
| { |
| int ret = -ENOTTY; |
| __u64 val = 0; |
| unsigned long uval; |
| |
| gossip_debug(GOSSIP_FILE_DEBUG, |
| "orangefs_ioctl: called with cmd %d\n", |
| cmd); |
| |
| /* |
| * we understand some general ioctls on files, such as the immutable |
| * and append flags |
| */ |
| if (cmd == FS_IOC_GETFLAGS) { |
| val = 0; |
| ret = orangefs_inode_getxattr(file_inode(file), |
| "user.pvfs2.meta_hint", |
| &val, sizeof(val)); |
| if (ret < 0 && ret != -ENODATA) |
| return ret; |
| else if (ret == -ENODATA) |
| val = 0; |
| uval = val; |
| gossip_debug(GOSSIP_FILE_DEBUG, |
| "orangefs_ioctl: FS_IOC_GETFLAGS: %llu\n", |
| (unsigned long long)uval); |
| return put_user(uval, (int __user *)arg); |
| } else if (cmd == FS_IOC_SETFLAGS) { |
| ret = 0; |
| if (get_user(uval, (int __user *)arg)) |
| return -EFAULT; |
| /* |
| * ORANGEFS_MIRROR_FL is set internally when the mirroring mode |
| * is turned on for a file. The user is not allowed to turn |
| * on this bit, but the bit is present if the user first gets |
| * the flags and then updates the flags with some new |
| * settings. So, we ignore it in the following edit. bligon. |
| */ |
| if ((uval & ~ORANGEFS_MIRROR_FL) & |
| (~(FS_IMMUTABLE_FL | FS_APPEND_FL | FS_NOATIME_FL))) { |
| gossip_err("orangefs_ioctl: the FS_IOC_SETFLAGS only supports setting one of FS_IMMUTABLE_FL|FS_APPEND_FL|FS_NOATIME_FL\n"); |
| return -EINVAL; |
| } |
| val = uval; |
| gossip_debug(GOSSIP_FILE_DEBUG, |
| "orangefs_ioctl: FS_IOC_SETFLAGS: %llu\n", |
| (unsigned long long)val); |
| ret = orangefs_inode_setxattr(file_inode(file), |
| "user.pvfs2.meta_hint", |
| &val, sizeof(val), 0); |
| } |
| |
| return ret; |
| } |
| |
| /* |
| * Memory map a region of a file. |
| */ |
| static int orangefs_file_mmap(struct file *file, struct vm_area_struct *vma) |
| { |
| gossip_debug(GOSSIP_FILE_DEBUG, |
| "orangefs_file_mmap: called on %s\n", |
| (file ? |
| (char *)file->f_path.dentry->d_name.name : |
| (char *)"Unknown")); |
| |
| /* set the sequential readahead hint */ |
| vma->vm_flags |= VM_SEQ_READ; |
| vma->vm_flags &= ~VM_RAND_READ; |
| |
| /* Use readonly mmap since we cannot support writable maps. */ |
| return generic_file_readonly_mmap(file, vma); |
| } |
| |
| #define mapping_nrpages(idata) ((idata)->nrpages) |
| |
| /* |
| * Called to notify the module that there are no more references to |
| * this file (i.e. no processes have it open). |
| * |
| * \note Not called when each file is closed. |
| */ |
| static int orangefs_file_release(struct inode *inode, struct file *file) |
| { |
| gossip_debug(GOSSIP_FILE_DEBUG, |
| "orangefs_file_release: called on %pD\n", |
| file); |
| |
| orangefs_flush_inode(inode); |
| |
| /* |
| * remove all associated inode pages from the page cache and |
| * readahead cache (if any); this forces an expensive refresh of |
| * data for the next caller of mmap (or 'get_block' accesses) |
| */ |
| if (file_inode(file) && |
| file_inode(file)->i_mapping && |
| mapping_nrpages(&file_inode(file)->i_data)) { |
| if (orangefs_features & ORANGEFS_FEATURE_READAHEAD) { |
| gossip_debug(GOSSIP_INODE_DEBUG, |
| "calling flush_racache on %pU\n", |
| get_khandle_from_ino(inode)); |
| flush_racache(inode); |
| gossip_debug(GOSSIP_INODE_DEBUG, |
| "flush_racache finished\n"); |
| } |
| truncate_inode_pages(file_inode(file)->i_mapping, |
| 0); |
| } |
| return 0; |
| } |
| |
| /* |
| * Push all data for a specific file onto permanent storage. |
| */ |
| static int orangefs_fsync(struct file *file, |
| loff_t start, |
| loff_t end, |
| int datasync) |
| { |
| int ret = -EINVAL; |
| struct orangefs_inode_s *orangefs_inode = |
| ORANGEFS_I(file_inode(file)); |
| struct orangefs_kernel_op_s *new_op = NULL; |
| |
| /* required call */ |
| filemap_write_and_wait_range(file->f_mapping, start, end); |
| |
| new_op = op_alloc(ORANGEFS_VFS_OP_FSYNC); |
| if (!new_op) |
| return -ENOMEM; |
| new_op->upcall.req.fsync.refn = orangefs_inode->refn; |
| |
| ret = service_operation(new_op, |
| "orangefs_fsync", |
| get_interruptible_flag(file_inode(file))); |
| |
| gossip_debug(GOSSIP_FILE_DEBUG, |
| "orangefs_fsync got return value of %d\n", |
| ret); |
| |
| op_release(new_op); |
| |
| orangefs_flush_inode(file_inode(file)); |
| return ret; |
| } |
| |
| /* |
| * Change the file pointer position for an instance of an open file. |
| * |
| * \note If .llseek is overriden, we must acquire lock as described in |
| * Documentation/filesystems/Locking. |
| * |
| * Future upgrade could support SEEK_DATA and SEEK_HOLE but would |
| * require much changes to the FS |
| */ |
| static loff_t orangefs_file_llseek(struct file *file, loff_t offset, int origin) |
| { |
| int ret = -EINVAL; |
| struct inode *inode = file_inode(file); |
| |
| if (origin == SEEK_END) { |
| /* |
| * revalidate the inode's file size. |
| * NOTE: We are only interested in file size here, |
| * so we set mask accordingly. |
| */ |
| ret = orangefs_inode_getattr(file->f_mapping->host, 0, 1); |
| if (ret == -ESTALE) |
| ret = -EIO; |
| if (ret) { |
| gossip_debug(GOSSIP_FILE_DEBUG, |
| "%s:%s:%d calling make bad inode\n", |
| __FILE__, |
| __func__, |
| __LINE__); |
| return ret; |
| } |
| } |
| |
| gossip_debug(GOSSIP_FILE_DEBUG, |
| "orangefs_file_llseek: offset is %ld | origin is %d" |
| " | inode size is %lu\n", |
| (long)offset, |
| origin, |
| (unsigned long)i_size_read(inode)); |
| |
| return generic_file_llseek(file, offset, origin); |
| } |
| |
| /* |
| * Support local locks (locks that only this kernel knows about) |
| * if Orangefs was mounted -o local_lock. |
| */ |
| static int orangefs_lock(struct file *filp, int cmd, struct file_lock *fl) |
| { |
| int rc = -EINVAL; |
| |
| if (ORANGEFS_SB(filp->f_inode->i_sb)->flags & ORANGEFS_OPT_LOCAL_LOCK) { |
| if (cmd == F_GETLK) { |
| rc = 0; |
| posix_test_lock(filp, fl); |
| } else { |
| rc = posix_lock_file(filp, fl, NULL); |
| } |
| } |
| |
| return rc; |
| } |
| |
| /** ORANGEFS implementation of VFS file operations */ |
| const struct file_operations orangefs_file_operations = { |
| .llseek = orangefs_file_llseek, |
| .read_iter = orangefs_file_read_iter, |
| .write_iter = orangefs_file_write_iter, |
| .lock = orangefs_lock, |
| .unlocked_ioctl = orangefs_ioctl, |
| .mmap = orangefs_file_mmap, |
| .open = generic_file_open, |
| .release = orangefs_file_release, |
| .fsync = orangefs_fsync, |
| }; |