Messages in this thread Patch in this message | | | Date | Mon, 10 Sep 2007 19:21:53 +0900 | From | KAMEZAWA Hiroyuki <> | Subject | [PATCH] add page->mapping handling interface [26/35] changes in NFS |
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Changes page->mapping handling in NFS
Singed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
--- fs/nfs/file.c | 11 ++++++----- fs/nfs/internal.h | 2 +- fs/nfs/pagelist.c | 2 +- fs/nfs/read.c | 4 ++-- fs/nfs/write.c | 35 ++++++++++++++++++----------------- 5 files changed, 28 insertions(+), 26 deletions(-)
Index: test-2.6.23-rc4-mm1/fs/nfs/file.c =================================================================== --- test-2.6.23-rc4-mm1.orig/fs/nfs/file.c +++ test-2.6.23-rc4-mm1/fs/nfs/file.c @@ -357,7 +357,7 @@ static void nfs_invalidate_page(struct p if (offset != 0) return; /* Cancel any unstarted writes on this page */ - nfs_wb_page_cancel(page->mapping->host, page); + nfs_wb_page_cancel(page_inode(page), page); } static int nfs_release_page(struct page *page, gfp_t gfp) @@ -368,7 +368,7 @@ static int nfs_release_page(struct page static int nfs_launder_page(struct page *page) { - return nfs_wb_page(page->mapping->host, page); + return nfs_wb_page(page_inode(page), page); } const struct address_space_operations nfs_file_aops = { @@ -395,16 +395,17 @@ static int nfs_vm_page_mkwrite(struct vm void *fsdata; lock_page(page); - if (page->mapping != vma->vm_file->f_path.dentry->d_inode->i_mapping) + if (!pagecache_consistent(page, + vma->vm_file->f_path.dentry->d_inode->i_mapping)) goto out_unlock; pagelen = nfs_page_length(page); if (pagelen == 0) goto out_unlock; - ret = nfs_write_begin(filp, page->mapping, + ret = nfs_write_begin(filp, page_mapping_cache(page), (loff_t)page->index << PAGE_CACHE_SHIFT, pagelen, 0, &page, &fsdata); if (!ret) - ret = nfs_write_end(filp, page->mapping, + ret = nfs_write_end(filp, page_mapping_cache(page), (loff_t)page->index << PAGE_CACHE_SHIFT, pagelen, pagelen, page, fsdata); out_unlock: Index: test-2.6.23-rc4-mm1/fs/nfs/internal.h =================================================================== --- test-2.6.23-rc4-mm1.orig/fs/nfs/internal.h +++ test-2.6.23-rc4-mm1/fs/nfs/internal.h @@ -220,7 +220,7 @@ void nfs_super_set_maxbytes(struct super static inline unsigned int nfs_page_length(struct page *page) { - loff_t i_size = i_size_read(page->mapping->host); + loff_t i_size = i_size_read(page_inode(page)); if (i_size > 0) { pgoff_t end_index = (i_size - 1) >> PAGE_CACHE_SHIFT; Index: test-2.6.23-rc4-mm1/fs/nfs/read.c =================================================================== --- test-2.6.23-rc4-mm1.orig/fs/nfs/read.c +++ test-2.6.23-rc4-mm1/fs/nfs/read.c @@ -466,7 +466,7 @@ static const struct rpc_call_ops nfs_rea int nfs_readpage(struct file *file, struct page *page) { struct nfs_open_context *ctx; - struct inode *inode = page->mapping->host; + struct inode *inode = page_inode(page); int error; dprintk("NFS: nfs_readpage (%p %ld@%lu)\n", @@ -517,7 +517,7 @@ static int readpage_async_filler(void *data, struct page *page) { struct nfs_readdesc *desc = (struct nfs_readdesc *)data; - struct inode *inode = page->mapping->host; + struct inode *inode = page_inode(page); struct nfs_page *new; unsigned int len; int error; Index: test-2.6.23-rc4-mm1/fs/nfs/write.c =================================================================== --- test-2.6.23-rc4-mm1.orig/fs/nfs/write.c +++ test-2.6.23-rc4-mm1/fs/nfs/write.c @@ -131,7 +131,7 @@ static struct nfs_page *nfs_page_find_re static struct nfs_page *nfs_page_find_request(struct page *page) { - struct inode *inode = page->mapping->host; + struct inode *inode = page_inode(page); struct nfs_page *req = NULL; spin_lock(&inode->i_lock); @@ -143,7 +143,7 @@ static struct nfs_page *nfs_page_find_re /* Adjust the file length if we're writing beyond the end */ static void nfs_grow_file(struct page *page, unsigned int offset, unsigned int count) { - struct inode *inode = page->mapping->host; + struct inode *inode = page_inode(page); loff_t end, i_size = i_size_read(inode); pgoff_t end_index = (i_size - 1) >> PAGE_CACHE_SHIFT; @@ -160,7 +160,7 @@ static void nfs_grow_file(struct page *p static void nfs_set_pageerror(struct page *page) { SetPageError(page); - nfs_zap_mapping(page->mapping->host, page->mapping); + nfs_zap_mapping(page_inode(page), page_mapping_cache(page)); } /* We can set the PG_uptodate flag if we see that a write request @@ -192,7 +192,7 @@ static int nfs_writepage_setup(struct nf ret = PTR_ERR(req); if (ret != -EBUSY) return ret; - ret = nfs_wb_page(page->mapping->host, page); + ret = nfs_wb_page(page_inode(page), page); if (ret != 0) return ret; } @@ -226,7 +226,7 @@ static int nfs_set_page_writeback(struct int ret = test_set_page_writeback(page); if (!ret) { - struct inode *inode = page->mapping->host; + struct inode *inode = page_inode(page); struct nfs_server *nfss = NFS_SERVER(inode); if (atomic_long_inc_return(&nfss->writeback) > @@ -238,7 +238,7 @@ static int nfs_set_page_writeback(struct static void nfs_end_page_writeback(struct page *page) { - struct inode *inode = page->mapping->host; + struct inode *inode = page_inode(page); struct nfs_server *nfss = NFS_SERVER(inode); end_page_writeback(page); @@ -255,7 +255,7 @@ static void nfs_end_page_writeback(struc static int nfs_page_async_flush(struct nfs_pageio_descriptor *pgio, struct page *page) { - struct inode *inode = page->mapping->host; + struct inode *inode = page_inode(page); struct nfs_inode *nfsi = NFS_I(inode); struct nfs_page *req; int ret; @@ -301,7 +301,7 @@ static int nfs_page_async_flush(struct n static int nfs_do_writepage(struct page *page, struct writeback_control *wbc, struct nfs_pageio_descriptor *pgio) { - struct inode *inode = page->mapping->host; + struct inode *inode = page_inode(page); nfs_inc_stats(inode, NFSIOS_VFSWRITEPAGE); nfs_add_stats(inode, NFSIOS_WRITEPAGES, 1); @@ -318,7 +318,7 @@ static int nfs_writepage_locked(struct p struct nfs_pageio_descriptor pgio; int err; - nfs_pageio_init_write(&pgio, page->mapping->host, wb_priority(wbc)); + nfs_pageio_init_write(&pgio, page_inode(page), wb_priority(wbc)); err = nfs_do_writepage(page, wbc, &pgio); nfs_pageio_complete(&pgio); if (err < 0) @@ -585,7 +585,7 @@ static inline int nfs_scan_commit(struct static struct nfs_page * nfs_update_request(struct nfs_open_context* ctx, struct page *page, unsigned int offset, unsigned int bytes) { - struct address_space *mapping = page->mapping; + struct address_space *mapping = page_mapping_cache(page); struct inode *inode = mapping->host; struct nfs_page *req, *new = NULL; pgoff_t rqend, end; @@ -687,7 +687,7 @@ int nfs_flush_incompatible(struct file * nfs_release_request(req); if (!do_flush) return 0; - status = nfs_wb_page(page->mapping->host, page); + status = nfs_wb_page(page_inode(page), page); } while (status == 0); return status; } @@ -702,7 +702,7 @@ int nfs_updatepage(struct file *file, st unsigned int offset, unsigned int count) { struct nfs_open_context *ctx = nfs_file_open_context(file); - struct inode *inode = page->mapping->host; + struct inode *inode = page_inode(page); int status = 0; nfs_inc_stats(inode, NFSIOS_VFSUPDATEPAGE); @@ -958,7 +958,7 @@ static void nfs_writeback_done_partial(s } if (nfs_write_need_commit(data)) { - struct inode *inode = page->mapping->host; + struct inode *inode = page_inode(page); spin_lock(&inode->i_lock); if (test_bit(PG_NEED_RESCHED, &req->wb_flags)) { @@ -1386,7 +1386,7 @@ int nfs_wb_page_cancel(struct inode *ino loff_t range_start = page_offset(page); loff_t range_end = range_start + (loff_t)(PAGE_CACHE_SIZE - 1); struct writeback_control wbc = { - .bdi = page->mapping->backing_dev_info, + .bdi = page_mapping_cache(page)->backing_dev_info, .sync_mode = WB_SYNC_ALL, .nr_to_write = LONG_MAX, .range_start = range_start, @@ -1419,7 +1419,8 @@ int nfs_wb_page_cancel(struct inode *ino } if (!PagePrivate(page)) return 0; - ret = nfs_sync_mapping_wait(page->mapping, &wbc, FLUSH_INVALIDATE); + ret = nfs_sync_mapping_wait(page_mapping_cache(page), + &wbc, FLUSH_INVALIDATE); out: return ret; } @@ -1429,7 +1430,7 @@ int nfs_wb_page_priority(struct inode *i loff_t range_start = page_offset(page); loff_t range_end = range_start + (loff_t)(PAGE_CACHE_SIZE - 1); struct writeback_control wbc = { - .bdi = page->mapping->backing_dev_info, + .bdi = page_mapping_cache(page)->backing_dev_info, .sync_mode = WB_SYNC_ALL, .nr_to_write = LONG_MAX, .range_start = range_start, @@ -1445,7 +1446,7 @@ int nfs_wb_page_priority(struct inode *i } if (!PagePrivate(page)) return 0; - ret = nfs_sync_mapping_wait(page->mapping, &wbc, how); + ret = nfs_sync_mapping_wait(page_mapping_cache(page), &wbc, how); if (ret >= 0) return 0; out: Index: test-2.6.23-rc4-mm1/fs/nfs/pagelist.c =================================================================== --- test-2.6.23-rc4-mm1.orig/fs/nfs/pagelist.c +++ test-2.6.23-rc4-mm1/fs/nfs/pagelist.c @@ -81,7 +81,7 @@ nfs_create_request(struct nfs_open_conte page_cache_get(page); BUG_ON(PagePrivate(page)); BUG_ON(!PageLocked(page)); - BUG_ON(page->mapping->host != inode); + BUG_ON(page_inode(page) != inode); req->wb_offset = offset; req->wb_pgbase = offset; req->wb_bytes = count; 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