+#define CEPH_I_ERROR_WRITE (1 << 11) /* have seen write errors */
+
+/*
+ * We set the ERROR_WRITE bit when we start seeing write errors on an inode
+ * and then clear it when they start succeeding. Note that we do a lockless
+ * check first, and only take the lock if it looks like it needs to be changed.
+ * The write submission code just takes this as a hint, so we're not too
+ * worried if a few slip through in either direction.
+ */
+static inline void ceph_set_error_write(struct ceph_inode_info *ci)
+{
+ if (!(READ_ONCE(ci->i_ceph_flags) & CEPH_I_ERROR_WRITE)) {
+ spin_lock(&ci->i_ceph_lock);
+ ci->i_ceph_flags |= CEPH_I_ERROR_WRITE;
+ spin_unlock(&ci->i_ceph_lock);
+ }
+}
+
+static inline void ceph_clear_error_write(struct ceph_inode_info *ci)
+{
+ if (READ_ONCE(ci->i_ceph_flags) & CEPH_I_ERROR_WRITE) {
+ spin_lock(&ci->i_ceph_lock);
+ ci->i_ceph_flags &= ~CEPH_I_ERROR_WRITE;
+ spin_unlock(&ci->i_ceph_lock);
+ }
+}