1 files changed, 26 insertions, 0 deletions

diff --git a/fs/ceph/super.h b/fs/ceph/super.h
index c68e6a045fb9..7334ee86b9e8 100644
--- a/fs/ceph/super.h
+++ b/fs/ceph/super.h
@@ -474,6 +474,32 @@ static inline struct inode *ceph_find_inode(struct super_block *sb,
 #define CEPH_I_CAP_DROPPED      (1 << 8)  /* caps were forcibly dropped */
 #define CEPH_I_KICK_FLUSH       (1 << 9)  /* kick flushing caps */
 #define CEPH_I_FLUSH_SNAPS      (1 << 10) /* need flush snapss */
+#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);
+        }
+}
 
 static inline void __ceph_dir_set_complete(struct ceph_inode_info *ci,
                                            long long release_count,