libdiskfs,libnetfs: add missing io_pathconf cases

* libdiskfs/io-pathconf.c (diskfs_S_io_pathconf): For
_PC_REC_MAX_XFER_SIZE, _PC_REC_INCR_XFER_SIZE, _PC_SYMLINK_MAX, return
undefined. For _PC_2_SYMLINKS, return 1. For _PC_REC_MIN_XFER_SIZE,
_PC_REC_XFER_ALIGN, _PC_ALLOC_SIZE_MIN, return page size.
* libnetfs/io-pathconf.c (netfs_S_io_pathconf): Likewise.

1 files changed, 10 insertions, 0 deletions

diff --git a/libdiskfs/io-pathconf.c b/libdiskfs/io-pathconf.c
index 38e277c3..7b6ff7fb 100644
--- a/libdiskfs/io-pathconf.c
+++ b/libdiskfs/io-pathconf.c
@@ -42,6 +42,9 @@ diskfs_S_io_pathconf (struct protid *cred,
     case _PC_VDISABLE:
     case _PC_SOCK_MAXBUF:
     case _PC_PATH_MAX:
+    case _PC_REC_MAX_XFER_SIZE:
+    case _PC_REC_INCR_XFER_SIZE:
+    case _PC_SYMLINK_MAX:
       *value = -1;
       break;
 
@@ -55,6 +58,7 @@ diskfs_S_io_pathconf (struct protid *cred,
       break;
 
     case _PC_NO_TRUNC:		/* enforced in diskfs_lookup */
+    case _PC_2_SYMLINKS:
       *value = 1; /* diskfs_name_max >= 0; */ /* see above */
       break;
 
@@ -72,6 +76,12 @@ diskfs_S_io_pathconf (struct protid *cred,
       *value = 32;
       break;
 
+    case _PC_REC_MIN_XFER_SIZE:
+    case _PC_REC_XFER_ALIGN:
+    case _PC_ALLOC_SIZE_MIN:
+      *value = vm_page_size;
+      break;
+
     default:
       return EINVAL;
     }