| direct.c (eb5bc2a213f96bd43b5f00a625acb0c669613645) | direct.c (66ee59af630fd8d5f4f56fb28162857e629aa0ab) |
|---|---|
| 1/* 2 * linux/fs/nfs/direct.c 3 * 4 * Copyright (C) 2003 by Chuck Lever <cel@netapp.com> 5 * 6 * High-performance uncached I/O for the Linux NFS client 7 * 8 * There are important applications whose performance or correctness --- 251 unchanged lines hidden (view full) --- 260 return 0; 261 262#ifndef CONFIG_NFS_SWAP 263 dprintk("NFS: nfs_direct_IO (%pD) off/no(%Ld/%lu) EINVAL\n", 264 iocb->ki_filp, (long long) pos, iter->nr_segs); 265 266 return -EINVAL; 267#else | 1/* 2 * linux/fs/nfs/direct.c 3 * 4 * Copyright (C) 2003 by Chuck Lever <cel@netapp.com> 5 * 6 * High-performance uncached I/O for the Linux NFS client 7 * 8 * There are important applications whose performance or correctness --- 251 unchanged lines hidden (view full) --- 260 return 0; 261 262#ifndef CONFIG_NFS_SWAP 263 dprintk("NFS: nfs_direct_IO (%pD) off/no(%Ld/%lu) EINVAL\n", 264 iocb->ki_filp, (long long) pos, iter->nr_segs); 265 266 return -EINVAL; 267#else |
| 268 VM_BUG_ON(iocb->ki_nbytes != PAGE_SIZE); | 268 VM_BUG_ON(iov_iter_count(iter) != PAGE_SIZE); |
| 269 270 if (rw == READ) 271 return nfs_file_direct_read(iocb, iter, pos); 272 return nfs_file_direct_write(iocb, iter, pos); 273#endif /* CONFIG_NFS_SWAP */ 274} 275 276static void nfs_direct_release_pages(struct page **pages, unsigned int npages) 277{ 278 unsigned int i; 279 for (i = 0; i < npages; i++) 280 page_cache_release(pages[i]); 281} 282 283void nfs_init_cinfo_from_dreq(struct nfs_commit_info *cinfo, 284 struct nfs_direct_req *dreq) 285{ | 269 270 if (rw == READ) 271 return nfs_file_direct_read(iocb, iter, pos); 272 return nfs_file_direct_write(iocb, iter, pos); 273#endif /* CONFIG_NFS_SWAP */ 274} 275 276static void nfs_direct_release_pages(struct page **pages, unsigned int npages) 277{ 278 unsigned int i; 279 for (i = 0; i < npages; i++) 280 page_cache_release(pages[i]); 281} 282 283void nfs_init_cinfo_from_dreq(struct nfs_commit_info *cinfo, 284 struct nfs_direct_req *dreq) 285{ |
| 286 cinfo->lock = &dreq->inode->i_lock; | 286 cinfo->lock = &dreq->lock; |
| 287 cinfo->mds = &dreq->mds_cinfo; 288 cinfo->ds = &dreq->ds_cinfo; 289 cinfo->dreq = dreq; 290 cinfo->completion_ops = &nfs_direct_commit_completion_ops; 291} 292 293static inline void nfs_direct_setup_mirroring(struct nfs_direct_req *dreq, 294 struct nfs_pageio_descriptor *pgio, --- 787 unchanged lines hidden --- | 287 cinfo->mds = &dreq->mds_cinfo; 288 cinfo->ds = &dreq->ds_cinfo; 289 cinfo->dreq = dreq; 290 cinfo->completion_ops = &nfs_direct_commit_completion_ops; 291} 292 293static inline void nfs_direct_setup_mirroring(struct nfs_direct_req *dreq, 294 struct nfs_pageio_descriptor *pgio, --- 787 unchanged lines hidden --- |