make write(2) return error prematurely if there is writeback error.
User can use fsync() or fdatasync() to clear the error.
Signed-off-by: "Yan, Zheng" <zyan@xxxxxxxxxx>
---
fs/ceph/caps.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
index e88a21d830e1..6063e5f4035a 100644
--- a/fs/ceph/caps.c
+++ b/fs/ceph/caps.c
@@ -2816,6 +2816,14 @@ int ceph_get_caps(struct file *filp, int need, int want,
break;
}
+ if (_got & CEPH_CAP_FILE_WR) {
+ ret = filemap_check_wb_err(inode->i_mapping, filp->f_wb_err);
+ if (ret < 0) {
+ ceph_put_cap_refs(ci, _got);
+ return ret;
+ }
+ }
+
if ((_got & CEPH_CAP_FILE_RD) && (_got & CEPH_CAP_FILE_CACHE))
ceph_fscache_revalidate_cookie(ci);
--
2.17.2
