diff options
| -rw-r--r-- | fs/nfs/write.c | 26 |
1 files changed, 10 insertions, 16 deletions
diff --git a/fs/nfs/write.c b/fs/nfs/write.c index 9347ab7..f5bc8e1 100644 --- a/fs/nfs/write.c +++ b/fs/nfs/write.c @@ -239,21 +239,18 @@ int nfs_congestion_kb; #define NFS_CONGESTION_OFF_THRESH \ (NFS_CONGESTION_ON_THRESH - (NFS_CONGESTION_ON_THRESH >> 2)) -static int nfs_set_page_writeback(struct page *page) +static void nfs_set_page_writeback(struct page *page) { + struct nfs_server *nfss = NFS_SERVER(page_file_mapping(page)->host); int ret = test_set_page_writeback(page); - if (!ret) { - struct inode *inode = page_file_mapping(page)->host; - struct nfs_server *nfss = NFS_SERVER(inode); + WARN_ON_ONCE(ret != 0); - if (atomic_long_inc_return(&nfss->writeback) > - NFS_CONGESTION_ON_THRESH) { - set_bdi_congested(&nfss->backing_dev_info, - BLK_RW_ASYNC); - } + if (atomic_long_inc_return(&nfss->writeback) > + NFS_CONGESTION_ON_THRESH) { + set_bdi_congested(&nfss->backing_dev_info, + BLK_RW_ASYNC); } - return ret; } static void nfs_end_page_writeback(struct page *page) @@ -315,10 +312,10 @@ static int nfs_page_async_flush(struct nfs_pageio_descriptor *pgio, if (IS_ERR(req)) goto out; - ret = nfs_set_page_writeback(page); - BUG_ON(ret != 0); - BUG_ON(test_bit(PG_CLEAN, &req->wb_flags)); + nfs_set_page_writeback(page); + WARN_ON_ONCE(test_bit(PG_CLEAN, &req->wb_flags)); + ret = 0; if (!nfs_pageio_add_request(pgio, req)) { nfs_redirty_request(req); ret = pgio->pg_error; @@ -451,8 +448,6 @@ static void nfs_inode_remove_request(struct nfs_page *req) struct inode *inode = req->wb_context->dentry->d_inode; struct nfs_inode *nfsi = NFS_I(inode); - BUG_ON (!NFS_WBACK_BUSY(req)); - spin_lock(&inode->i_lock); if (likely(!PageSwapCache(req->wb_page))) { set_page_private(req->wb_page, 0); @@ -1727,7 +1722,6 @@ int nfs_wb_page_cancel(struct inode *inode, struct page *page) struct nfs_page *req; int ret = 0; - BUG_ON(!PageLocked(page)); for (;;) { wait_on_page_writeback(page); req = nfs_page_find_request(page); |