Merge branch 'flexfiles'

* flexfiles:
  pNFS/flexfiles: Ensure we record layoutstats even if RPC is terminated early
  pNFS: Add flag to track if we've called nfs4_ff_layout_stat_io_start_read/write
  pNFS/flexfiles: Fix a statistics gathering imbalance
  pNFS/flexfiles: Don't mark the entire layout as failed, when returning it
  pNFS/flexfiles: Don't prevent flexfiles client from retrying LAYOUTGET
  pnfs/flexfiles: count io stat in rpc_count_stats callback
  pnfs/flexfiles: do not mark delay-like status as DS failure
  NFS41: map NFS4ERR_LAYOUTUNAVAILABLE to ENODATA
  nfs: only remove page from mapping if launder_page fails
  nfs: handle request add failure properly
  nfs: centralize pgio error cleanup
  nfs: clean up rest of reqs when failing to add one
  NFS41: pop some layoutget errors to application
  pNFS/flexfiles: Support server-supplied layoutstats sampling period

1 files changed, 14 insertions, 0 deletions

diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
index 313d55402238..68f773dc226e 100644
--- a/fs/nfs/internal.h
+++ b/fs/nfs/internal.h
@@ -711,3 +711,17 @@ static inline u32 nfs_stateid_hash(nfs4_stateid *stateid)
 	return 0;
 }
 #endif
+
+static inline bool nfs_error_is_fatal(int err)
+{
+	switch (err) {
+	case -ERESTARTSYS:
+	case -EIO:
+	case -ENOSPC:
+	case -EROFS:
+	case -E2BIG:
+		return true;
+	default:
+		return false;
+	}
+}