diff options
author | Len Brown <len.brown@intel.com> | 2006-01-07 03:50:18 -0500 |
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committer | Len Brown <len.brown@intel.com> | 2006-01-07 03:50:18 -0500 |
commit | ed03f430cdc8c802652467e9097606fedc2c7abc (patch) | |
tree | 30941ec1e6f93e99358fefe18175e5dd800a4379 /fs/nfs/write.c | |
parent | ed349a8a0a780ed27e2a765f16cee54d9b63bfee (diff) | |
parent | 6f957eaf79356a32e838f5f262ee9a60544b1d5b (diff) | |
download | op-kernel-dev-ed03f430cdc8c802652467e9097606fedc2c7abc.zip op-kernel-dev-ed03f430cdc8c802652467e9097606fedc2c7abc.tar.gz |
Pull pnpacpi into acpica branch
Diffstat (limited to 'fs/nfs/write.c')
-rw-r--r-- | fs/nfs/write.c | 89 |
1 files changed, 45 insertions, 44 deletions
diff --git a/fs/nfs/write.c b/fs/nfs/write.c index 3107908..9449b68 100644 --- a/fs/nfs/write.c +++ b/fs/nfs/write.c @@ -89,24 +89,38 @@ static mempool_t *nfs_commit_mempool; static DECLARE_WAIT_QUEUE_HEAD(nfs_write_congestion); -static inline struct nfs_write_data *nfs_commit_alloc(void) +static inline struct nfs_write_data *nfs_commit_alloc(unsigned int pagecount) { struct nfs_write_data *p = mempool_alloc(nfs_commit_mempool, SLAB_NOFS); + if (p) { memset(p, 0, sizeof(*p)); INIT_LIST_HEAD(&p->pages); + if (pagecount < NFS_PAGEVEC_SIZE) + p->pagevec = &p->page_array[0]; + else { + size_t size = ++pagecount * sizeof(struct page *); + p->pagevec = kmalloc(size, GFP_NOFS); + if (p->pagevec) { + memset(p->pagevec, 0, size); + } else { + mempool_free(p, nfs_commit_mempool); + p = NULL; + } + } } return p; } static inline void nfs_commit_free(struct nfs_write_data *p) { + if (p && (p->pagevec != &p->page_array[0])) + kfree(p->pagevec); mempool_free(p, nfs_commit_mempool); } -static void nfs_writedata_release(struct rpc_task *task) +void nfs_writedata_release(void *wdata) { - struct nfs_write_data *wdata = (struct nfs_write_data *)task->tk_calldata; nfs_writedata_free(wdata); } @@ -168,7 +182,7 @@ static int nfs_writepage_sync(struct nfs_open_context *ctx, struct inode *inode, int result, written = 0; struct nfs_write_data *wdata; - wdata = nfs_writedata_alloc(); + wdata = nfs_writedata_alloc(1); if (!wdata) return -ENOMEM; @@ -232,19 +246,16 @@ static int nfs_writepage_async(struct nfs_open_context *ctx, unsigned int offset, unsigned int count) { struct nfs_page *req; - int status; req = nfs_update_request(ctx, inode, page, offset, count); - status = (IS_ERR(req)) ? PTR_ERR(req) : 0; - if (status < 0) - goto out; + if (IS_ERR(req)) + return PTR_ERR(req); /* Update file length */ nfs_grow_file(page, offset, count); /* Set the PG_uptodate flag? */ nfs_mark_uptodate(page, offset, count); nfs_unlock_request(req); - out: - return status; + return 0; } static int wb_priority(struct writeback_control *wbc) @@ -304,11 +315,8 @@ do_it: lock_kernel(); if (!IS_SYNC(inode) && inode_referenced) { err = nfs_writepage_async(ctx, inode, page, 0, offset); - if (err >= 0) { - err = 0; - if (wbc->for_reclaim) - nfs_flush_inode(inode, 0, 0, FLUSH_STABLE); - } + if (!wbc->for_writepages) + nfs_flush_inode(inode, 0, 0, wb_priority(wbc)); } else { err = nfs_writepage_sync(ctx, inode, page, 0, offset, priority); @@ -877,9 +885,6 @@ static void nfs_write_rpcsetup(struct nfs_page *req, data->task.tk_priority = flush_task_priority(how); data->task.tk_cookie = (unsigned long)inode; - data->task.tk_calldata = data; - /* Release requests */ - data->task.tk_release = nfs_writedata_release; dprintk("NFS: %4d initiated write call (req %s/%Ld, %u bytes @ offset %Lu)\n", data->task.tk_pid, @@ -919,7 +924,7 @@ static int nfs_flush_multi(struct list_head *head, struct inode *inode, int how) nbytes = req->wb_bytes; for (;;) { - data = nfs_writedata_alloc(); + data = nfs_writedata_alloc(1); if (!data) goto out_bad; list_add(&data->pages, &list); @@ -983,7 +988,7 @@ static int nfs_flush_one(struct list_head *head, struct inode *inode, int how) if (NFS_SERVER(inode)->wsize < PAGE_CACHE_SIZE) return nfs_flush_multi(head, inode, how); - data = nfs_writedata_alloc(); + data = nfs_writedata_alloc(NFS_SERVER(inode)->wpages); if (!data) goto out_bad; @@ -1137,9 +1142,9 @@ static void nfs_writeback_done_full(struct nfs_write_data *data, int status) /* * This function is called when the WRITE call is complete. */ -void nfs_writeback_done(struct rpc_task *task) +void nfs_writeback_done(struct rpc_task *task, void *calldata) { - struct nfs_write_data *data = (struct nfs_write_data *) task->tk_calldata; + struct nfs_write_data *data = calldata; struct nfs_writeargs *argp = &data->args; struct nfs_writeres *resp = &data->res; @@ -1206,9 +1211,8 @@ void nfs_writeback_done(struct rpc_task *task) #if defined(CONFIG_NFS_V3) || defined(CONFIG_NFS_V4) -static void nfs_commit_release(struct rpc_task *task) +void nfs_commit_release(void *wdata) { - struct nfs_write_data *wdata = (struct nfs_write_data *)task->tk_calldata; nfs_commit_free(wdata); } @@ -1244,9 +1248,6 @@ static void nfs_commit_rpcsetup(struct list_head *head, data->task.tk_priority = flush_task_priority(how); data->task.tk_cookie = (unsigned long)inode; - data->task.tk_calldata = data; - /* Release requests */ - data->task.tk_release = nfs_commit_release; dprintk("NFS: %4d initiated commit call\n", data->task.tk_pid); } @@ -1255,12 +1256,12 @@ static void nfs_commit_rpcsetup(struct list_head *head, * Commit dirty pages */ static int -nfs_commit_list(struct list_head *head, int how) +nfs_commit_list(struct inode *inode, struct list_head *head, int how) { struct nfs_write_data *data; struct nfs_page *req; - data = nfs_commit_alloc(); + data = nfs_commit_alloc(NFS_SERVER(inode)->wpages); if (!data) goto out_bad; @@ -1283,10 +1284,9 @@ nfs_commit_list(struct list_head *head, int how) /* * COMMIT call returned */ -void -nfs_commit_done(struct rpc_task *task) +void nfs_commit_done(struct rpc_task *task, void *calldata) { - struct nfs_write_data *data = (struct nfs_write_data *)task->tk_calldata; + struct nfs_write_data *data = calldata; struct nfs_page *req; int res = 0; @@ -1366,7 +1366,7 @@ int nfs_commit_inode(struct inode *inode, int how) res = nfs_scan_commit(inode, &head, 0, 0); spin_unlock(&nfsi->req_lock); if (res) { - error = nfs_commit_list(&head, how); + error = nfs_commit_list(inode, &head, how); if (error < 0) return error; } @@ -1377,22 +1377,23 @@ int nfs_commit_inode(struct inode *inode, int how) int nfs_sync_inode(struct inode *inode, unsigned long idx_start, unsigned int npages, int how) { - int error, - wait; + int nocommit = how & FLUSH_NOCOMMIT; + int wait = how & FLUSH_WAIT; + int error; - wait = how & FLUSH_WAIT; - how &= ~FLUSH_WAIT; + how &= ~(FLUSH_WAIT|FLUSH_NOCOMMIT); do { - error = 0; - if (wait) + if (wait) { error = nfs_wait_on_requests(inode, idx_start, npages); - if (error == 0) - error = nfs_flush_inode(inode, idx_start, npages, how); -#if defined(CONFIG_NFS_V3) || defined(CONFIG_NFS_V4) - if (error == 0) + if (error != 0) + continue; + } + error = nfs_flush_inode(inode, idx_start, npages, how); + if (error != 0) + continue; + if (!nocommit) error = nfs_commit_inode(inode, how); -#endif } while (error > 0); return error; } |