diff options
author | Jiri Kosina <jkosina@suse.cz> | 2014-11-20 14:42:02 +0100 |
---|---|---|
committer | Jiri Kosina <jkosina@suse.cz> | 2014-11-20 14:42:02 +0100 |
commit | a02001086bbfb4da35d1228bebc2f1b442db455f (patch) | |
tree | 62ab47936cef06fd08657ca5b6cd1df98c19be57 /fs/nfs/direct.c | |
parent | eff264efeeb0898408e8c9df72d8a32621035bed (diff) | |
parent | fc14f9c1272f62c3e8d01300f52467c0d9af50f9 (diff) |
Merge Linus' tree to be be to apply submitted patches to newer code than
current trivial.git base
Diffstat (limited to 'fs/nfs/direct.c')
-rw-r--r-- | fs/nfs/direct.c | 60 |
1 files changed, 18 insertions, 42 deletions
diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c index f11b9eed0de..10bf07280f4 100644 --- a/fs/nfs/direct.c +++ b/fs/nfs/direct.c @@ -148,8 +148,8 @@ static void nfs_direct_set_hdr_verf(struct nfs_direct_req *dreq, { struct nfs_writeverf *verfp; - verfp = nfs_direct_select_verf(dreq, hdr->data->ds_clp, - hdr->data->ds_idx); + verfp = nfs_direct_select_verf(dreq, hdr->ds_clp, + hdr->ds_idx); WARN_ON_ONCE(verfp->committed >= 0); memcpy(verfp, &hdr->verf, sizeof(struct nfs_writeverf)); WARN_ON_ONCE(verfp->committed < 0); @@ -169,8 +169,8 @@ static int nfs_direct_set_or_cmp_hdr_verf(struct nfs_direct_req *dreq, { struct nfs_writeverf *verfp; - verfp = nfs_direct_select_verf(dreq, hdr->data->ds_clp, - hdr->data->ds_idx); + verfp = nfs_direct_select_verf(dreq, hdr->ds_clp, + hdr->ds_idx); if (verfp->committed < 0) { nfs_direct_set_hdr_verf(dreq, hdr); return 0; @@ -178,7 +178,6 @@ static int nfs_direct_set_or_cmp_hdr_verf(struct nfs_direct_req *dreq, return memcmp(verfp, &hdr->verf, sizeof(struct nfs_writeverf)); } -#if IS_ENABLED(CONFIG_NFS_V3) || IS_ENABLED(CONFIG_NFS_V4) /* * nfs_direct_cmp_commit_data_verf - compare verifier for commit data * @dreq - direct request possibly spanning multiple servers @@ -197,7 +196,6 @@ static int nfs_direct_cmp_commit_data_verf(struct nfs_direct_req *dreq, WARN_ON_ONCE(verfp->committed < 0); return memcmp(verfp, &data->verf, sizeof(struct nfs_writeverf)); } -#endif /** * nfs_direct_IO - NFS address space operation for direct I/O @@ -222,11 +220,9 @@ ssize_t nfs_direct_IO(int rw, struct kiocb *iocb, struct iov_iter *iter, loff_t #else VM_BUG_ON(iocb->ki_nbytes != PAGE_SIZE); - if (rw == READ || rw == KERNEL_READ) - return nfs_file_direct_read(iocb, iter, pos, - rw == READ ? true : false); - return nfs_file_direct_write(iocb, iter, pos, - rw == WRITE ? true : false); + if (rw == READ) + return nfs_file_direct_read(iocb, iter, pos); + return nfs_file_direct_write(iocb, iter, pos); #endif /* CONFIG_NFS_SWAP */ } @@ -270,6 +266,7 @@ static void nfs_direct_req_free(struct kref *kref) { struct nfs_direct_req *dreq = container_of(kref, struct nfs_direct_req, kref); + nfs_free_pnfs_ds_cinfo(&dreq->ds_cinfo); if (dreq->l_ctx != NULL) nfs_put_lock_context(dreq->l_ctx); if (dreq->ctx != NULL) @@ -512,7 +509,7 @@ static ssize_t nfs_direct_read_schedule_iovec(struct nfs_direct_req *dreq, * cache. */ ssize_t nfs_file_direct_read(struct kiocb *iocb, struct iov_iter *iter, - loff_t pos, bool uio) + loff_t pos) { struct file *file = iocb->ki_filp; struct address_space *mapping = file->f_mapping; @@ -576,7 +573,6 @@ out: return result; } -#if IS_ENABLED(CONFIG_NFS_V3) || IS_ENABLED(CONFIG_NFS_V4) static void nfs_direct_write_reschedule(struct nfs_direct_req *dreq) { struct nfs_pageio_descriptor desc; @@ -700,22 +696,11 @@ static void nfs_direct_write_complete(struct nfs_direct_req *dreq, struct inode schedule_work(&dreq->work); /* Calls nfs_direct_write_schedule_work */ } -#else -static void nfs_direct_write_schedule_work(struct work_struct *work) -{ -} - -static void nfs_direct_write_complete(struct nfs_direct_req *dreq, struct inode *inode) -{ - nfs_direct_complete(dreq, true); -} -#endif - static void nfs_direct_write_completion(struct nfs_pgio_header *hdr) { struct nfs_direct_req *dreq = hdr->dreq; struct nfs_commit_info cinfo; - int bit = -1; + bool request_commit = false; struct nfs_page *req = nfs_list_entry(hdr->pages.next); if (test_bit(NFS_IOHDR_REDO, &hdr->flags)) @@ -729,27 +714,20 @@ static void nfs_direct_write_completion(struct nfs_pgio_header *hdr) dreq->flags = 0; dreq->error = hdr->error; } - if (dreq->error != 0) - bit = NFS_IOHDR_ERROR; - else { + if (dreq->error == 0) { dreq->count += hdr->good_bytes; - if (test_bit(NFS_IOHDR_NEED_RESCHED, &hdr->flags)) { - dreq->flags = NFS_ODIRECT_RESCHED_WRITES; - bit = NFS_IOHDR_NEED_RESCHED; - } else if (test_bit(NFS_IOHDR_NEED_COMMIT, &hdr->flags)) { + if (nfs_write_need_commit(hdr)) { if (dreq->flags == NFS_ODIRECT_RESCHED_WRITES) - bit = NFS_IOHDR_NEED_RESCHED; + request_commit = true; else if (dreq->flags == 0) { nfs_direct_set_hdr_verf(dreq, hdr); - bit = NFS_IOHDR_NEED_COMMIT; + request_commit = true; dreq->flags = NFS_ODIRECT_DO_COMMIT; } else if (dreq->flags == NFS_ODIRECT_DO_COMMIT) { - if (nfs_direct_set_or_cmp_hdr_verf(dreq, hdr)) { + request_commit = true; + if (nfs_direct_set_or_cmp_hdr_verf(dreq, hdr)) dreq->flags = NFS_ODIRECT_RESCHED_WRITES; - bit = NFS_IOHDR_NEED_RESCHED; - } else - bit = NFS_IOHDR_NEED_COMMIT; } } } @@ -759,9 +737,7 @@ static void nfs_direct_write_completion(struct nfs_pgio_header *hdr) req = nfs_list_entry(hdr->pages.next); nfs_list_remove_request(req); - switch (bit) { - case NFS_IOHDR_NEED_RESCHED: - case NFS_IOHDR_NEED_COMMIT: + if (request_commit) { kref_get(&req->wb_kref); nfs_mark_request_commit(req, hdr->lseg, &cinfo); } @@ -902,7 +878,7 @@ static ssize_t nfs_direct_write_schedule_iovec(struct nfs_direct_req *dreq, * is no atomic O_APPEND write facility in the NFS protocol. */ ssize_t nfs_file_direct_write(struct kiocb *iocb, struct iov_iter *iter, - loff_t pos, bool uio) + loff_t pos) { ssize_t result = -EINVAL; struct file *file = iocb->ki_filp; |