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authorPeng Tao <tao.peng@primarydata.com>2015-12-05 08:57:31 +0100
committerTrond Myklebust <trond.myklebust@primarydata.com>2015-12-28 20:32:37 +0100
commit0bcbf039f6b2bcefe4f5dada76079080edf9ecd0 (patch)
tree8edf8f581dcd12258d7ab84898261a3a3d0ab2ef /fs/nfs/inode.c
parentnfs: centralize pgio error cleanup (diff)
downloadlinux-0bcbf039f6b2bcefe4f5dada76079080edf9ecd0.tar.xz
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nfs: handle request add failure properly
When we fail to queue a read page to IO descriptor, we need to clean it up otherwise it is hanging around preventing nfs module from being removed. When we fail to queue a write page to IO descriptor, we need to clean it up and also save the failure status to open context. Then at file close, we can try to write pages back again and drop the page if it fails to writeback in .launder_page, which will be done in the next patch. Signed-off-by: Peng Tao <tao.peng@primarydata.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Diffstat (limited to 'fs/nfs/inode.c')
-rw-r--r--fs/nfs/inode.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index c7e8b87da5b2..74fb1223c2f5 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -912,6 +912,12 @@ void nfs_file_clear_open_context(struct file *filp)
if (ctx) {
struct inode *inode = d_inode(ctx->dentry);
+ /*
+ * We fatal error on write before. Try to writeback
+ * every page again.
+ */
+ if (ctx->error < 0)
+ invalidate_inode_pages2(inode->i_mapping);
filp->private_data = NULL;
spin_lock(&inode->i_lock);
list_move_tail(&ctx->list, &NFS_I(inode)->open_files);