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author | 2017-04-26 12:26:22 -0400 | |
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committer | 2017-04-26 13:03:04 -0400 | |
commit | c373fff7bd252ec36e8a895c58a584088f1d38bc (patch) | |
tree | 005607bf423bbe80c003c33f71c84a7e2229d992 | |
parent | NFS: Add a few more fatal I/O errors to nfs_error_is_fatal() (diff) | |
download | linux-c373fff7bd25.tar.gz linux-c373fff7bd25.tar.bz2 linux-c373fff7bd25.zip |
NFSv4: Don't special case "launder"
If the client receives a fatal server error from nfs_pageio_add_request(),
then we should always truncate the page on which the error occurred.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
-rw-r--r-- | fs/nfs/file.c | 2 | ||||
-rw-r--r-- | fs/nfs/write.c | 27 | ||||
-rw-r--r-- | include/linux/nfs_fs.h | 14 |
3 files changed, 13 insertions, 30 deletions
diff --git a/fs/nfs/file.c b/fs/nfs/file.c index bebed885b6e4..5713eb32a45e 100644 --- a/fs/nfs/file.c +++ b/fs/nfs/file.c @@ -482,7 +482,7 @@ static int nfs_launder_page(struct page *page) inode->i_ino, (long long)page_offset(page)); nfs_fscache_wait_on_page_write(nfsi, page); - return nfs_wb_launder_page(inode, page); + return nfs_wb_page(inode, page); } static int nfs_swap_activate(struct swap_info_struct *sis, struct file *file, diff --git a/fs/nfs/write.c b/fs/nfs/write.c index 2e654940478f..59e21cc0a266 100644 --- a/fs/nfs/write.c +++ b/fs/nfs/write.c @@ -586,8 +586,7 @@ nfs_error_is_fatal_on_server(int err) * May return an error if the user signalled nfs_wait_on_request(). */ static int nfs_page_async_flush(struct nfs_pageio_descriptor *pgio, - struct page *page, bool nonblock, - bool launder) + struct page *page, bool nonblock) { struct nfs_page *req; int ret = 0; @@ -610,13 +609,11 @@ static int nfs_page_async_flush(struct nfs_pageio_descriptor *pgio, if (!nfs_pageio_add_request(pgio, req)) { ret = pgio->pg_error; /* - * Remove the problematic req upon fatal errors - * in launder case, while other dirty pages can - * still be around until they get flushed. + * Remove the problematic req upon fatal errors on the server */ if (nfs_error_is_fatal(ret)) { nfs_context_set_write_error(req->wb_context, ret); - if (launder) + if (nfs_error_is_fatal_on_server(ret)) goto out_launder; } nfs_redirty_request(req); @@ -632,13 +629,12 @@ out_launder: } static int nfs_do_writepage(struct page *page, struct writeback_control *wbc, - struct nfs_pageio_descriptor *pgio, bool launder) + struct nfs_pageio_descriptor *pgio) { int ret; nfs_pageio_cond_complete(pgio, page_index(page)); - ret = nfs_page_async_flush(pgio, page, wbc->sync_mode == WB_SYNC_NONE, - launder); + ret = nfs_page_async_flush(pgio, page, wbc->sync_mode == WB_SYNC_NONE); if (ret == -EAGAIN) { redirty_page_for_writepage(wbc, page); ret = 0; @@ -650,8 +646,7 @@ static int nfs_do_writepage(struct page *page, struct writeback_control *wbc, * Write an mmapped page to the server. */ static int nfs_writepage_locked(struct page *page, - struct writeback_control *wbc, - bool launder) + struct writeback_control *wbc) { struct nfs_pageio_descriptor pgio; struct inode *inode = page_file_mapping(page)->host; @@ -660,7 +655,7 @@ static int nfs_writepage_locked(struct page *page, nfs_inc_stats(inode, NFSIOS_VFSWRITEPAGE); nfs_pageio_init_write(&pgio, inode, 0, false, &nfs_async_write_completion_ops); - err = nfs_do_writepage(page, wbc, &pgio, launder); + err = nfs_do_writepage(page, wbc, &pgio); nfs_pageio_complete(&pgio); if (err < 0) return err; @@ -673,7 +668,7 @@ int nfs_writepage(struct page *page, struct writeback_control *wbc) { int ret; - ret = nfs_writepage_locked(page, wbc, false); + ret = nfs_writepage_locked(page, wbc); unlock_page(page); return ret; } @@ -682,7 +677,7 @@ static int nfs_writepages_callback(struct page *page, struct writeback_control * { int ret; - ret = nfs_do_writepage(page, wbc, data, false); + ret = nfs_do_writepage(page, wbc, data); unlock_page(page); return ret; } @@ -2013,7 +2008,7 @@ int nfs_wb_page_cancel(struct inode *inode, struct page *page) /* * Write back all requests on one page - we do this before reading it. */ -int nfs_wb_single_page(struct inode *inode, struct page *page, bool launder) +int nfs_wb_page(struct inode *inode, struct page *page) { loff_t range_start = page_file_offset(page); loff_t range_end = range_start + (loff_t)(PAGE_SIZE - 1); @@ -2030,7 +2025,7 @@ int nfs_wb_single_page(struct inode *inode, struct page *page, bool launder) for (;;) { wait_on_page_writeback(page); if (clear_page_dirty_for_io(page)) { - ret = nfs_writepage_locked(page, &wbc, launder); + ret = nfs_writepage_locked(page, &wbc); if (ret < 0) goto out_error; continue; diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h index 9aa044e76820..bb0eb2c9acca 100644 --- a/include/linux/nfs_fs.h +++ b/include/linux/nfs_fs.h @@ -500,25 +500,13 @@ extern int nfs_updatepage(struct file *, struct page *, unsigned int, unsigned */ extern int nfs_sync_inode(struct inode *inode); extern int nfs_wb_all(struct inode *inode); -extern int nfs_wb_single_page(struct inode *inode, struct page *page, bool launder); +extern int nfs_wb_page(struct inode *inode, struct page *page); extern int nfs_wb_page_cancel(struct inode *inode, struct page* page); extern int nfs_commit_inode(struct inode *, int); extern struct nfs_commit_data *nfs_commitdata_alloc(bool never_fail); extern void nfs_commit_free(struct nfs_commit_data *data); static inline int -nfs_wb_launder_page(struct inode *inode, struct page *page) -{ - return nfs_wb_single_page(inode, page, true); -} - -static inline int -nfs_wb_page(struct inode *inode, struct page *page) -{ - return nfs_wb_single_page(inode, page, false); -} - -static inline int nfs_have_writebacks(struct inode *inode) { return NFS_I(inode)->nrequests != 0; |