[PATCH] stat,tail: sync file system constants from the linux kernel

[Pádraig Brady]

* src/stat.c: Add magic constants for "devmem", and
"zonefs" file systems.
* NEWS: Mention the improvement.
---
 NEWS       | 5 +++--
 src/stat.c | 4 ++++
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/NEWS b/NEWS
index 7cf15498c..efb97e6b0 100644
--- a/NEWS
+++ b/NEWS
@@ -40,8 +40,9 @@ GNU coreutils NEWS                                    -*- 
outline -*-
 
 ** Improvements
 
-  stat and tail now know about the "vboxsf" file system type.
-  stat -f -c%T now reports the file system type, and tail -f uses polling.
+  stat and tail now know about the "devmem", "vboxsf", and "zonefs"
+  file system types.  stat -f -c%T now reports the file system type,
+  and tail -f uses polling for "vboxsf" and inotify for the others.
 
 
 * Noteworthy changes in release 8.32 (2020-03-05) [stable]
diff --git a/src/stat.c b/src/stat.c
index 1c09073a2..70cc8d278 100644
--- a/src/stat.c
+++ b/src/stat.c
@@ -347,6 +347,8 @@ human_fstype (STRUCT_STATVFS const *statfsbuf)
       return "debugfs";
     case S_MAGIC_DEVFS: /* 0x1373 local */
       return "devfs";
+    case S_MAGIC_DEVMEM: /* 0x454D444D local */
+      return "devmem";
     case S_MAGIC_DEVPTS: /* 0x1CD1 local */
       return "devpts";
     case S_MAGIC_DMA_BUF: /* 0x444D4142 local */
@@ -551,6 +553,8 @@ human_fstype (STRUCT_STATVFS const *statfsbuf)
       return "z3fold";
     case S_MAGIC_ZFS: /* 0x2FC12FC1 local */
       return "zfs";
+    case S_MAGIC_ZONEFS: /* 0x5A4F4653 local */
+      return "zonefs";
     case S_MAGIC_ZSMALLOC: /* 0x58295829 local */
       return "zsmallocfs";
 
-- 
2.26.2