[PATCH AUTOSEL 5.2 28/94] NFS: On fatal writeback errors, we need to call nfs_inode_remove_request()

From: Sasha Levin
Date: Wed Sep 04 2019 - 12:19:38 EST

From: Trond Myklebust <trond.myklebust@xxxxxxxxxxxxxxx>

[ Upstream commit 06c9fdf3b9f1acc6e53753c99c54c39764cc979f ]

If the writeback error is fatal, we need to remove the tracking structures
(i.e. the nfs_page) from the inode.

Fixes: 6fbda89b257f ("NFS: Replace custom error reporting mechanism...")
Signed-off-by: Trond Myklebust <trond.myklebust@xxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
fs/nfs/write.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index 059a7c38bc4fc..bf3a3f5e1884e 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -57,6 +57,7 @@ static const struct rpc_call_ops nfs_commit_ops;
static const struct nfs_pgio_completion_ops nfs_async_write_completion_ops;
static const struct nfs_commit_completion_ops nfs_commit_completion_ops;
static const struct nfs_rw_ops nfs_rw_write_ops;
+static void nfs_inode_remove_request(struct nfs_page *req);
static void nfs_clear_request_commit(struct nfs_page *req);
static void nfs_init_cinfo_from_inode(struct nfs_commit_info *cinfo,
struct inode *inode);
@@ -591,7 +592,9 @@ nfs_lock_and_join_requests(struct page *page)

static void nfs_write_error(struct nfs_page *req, int error)
+ nfs_set_pageerror(page_file_mapping(req->wb_page));
nfs_mapping_set_error(req->wb_page, error);
+ nfs_inode_remove_request(req);