LU-11963 osd: Add nonrotational flag to statfs

[fs/lustre-release.git] / lustre / utils / lfs.c

diff --git a/lustre/utils/lfs.c b/lustre/utils/lfs.c
index 8b68b44..701868a 100644 (file)
--- a/lustre/utils/lfs.c
+++ b/lustre/utils/lfs.c
@@ -4884,6 +4884,30 @@ static inline int obd_statfs_ratio(const struct obd_statfs *st, bool inodes)
        return (ratio - (int)ratio) > 0 ? (int)(ratio + 1) : (int)ratio;
 }
 
+/* This is only used to reflect various problem states for lfs df, so we only
+ * translate the flags reflecting those states.
+ */
+static char obd_statfs_state_names[] = {
+       [OS_STATE_DEGRADED]     = 'D',
+       [OS_STATE_READONLY]     = 'R',
+       [OS_STATE_NOPRECREATE]  = 'N',
+       [OS_STATE_ENOSPC]       = 'S',
+       [OS_STATE_ENOINO]       = 'I',
+};
+
+static char obd_statfs_state2char(int s)
+{
+       /* Not an error state, do not print here  */
+       if (s == OS_STATE_NONROT)
+               return '\0';
+       /* Unknown name */
+       if (s > ARRAY_SIZE(obd_statfs_state_names)/sizeof(char) ||
+           obd_statfs_state_names[s] == 0)
+               return '?';
+
+       return obd_statfs_state_names[s];
+}
+
 static int showdf(char *mntdir, struct obd_statfs *stat,
                  char *uuid, enum mntdf_flags flags,
                  char *type, int index, int rc)
@@ -4957,21 +4981,16 @@ static int showdf(char *mntdir, struct obd_statfs *stat,
                        printf("[%s:%d]", type, index);
 
                if (stat->os_state) {
-                       /*
-                        * Each character represents the matching
-                        * OS_STATE_* bit.
-                        */
-                       const char state_names[] = "DRSI";
-                       __u32      state;
-                       __u32      i;
+                       uint32_t state;
+                       uint32_t i;
 
                        printf(" ");
-                       for (i = 0, state = stat->os_state;
-                            state && i < sizeof(state_names); i++) {
-                               if (!(state & (1 << i)))
+                       for (i = 0, state = stat->os_state; state != 0; i++) {
+                               uint32_t mask = 1 << i;
+                               if (!(state & mask))
                                        continue;
-                               printf("%c", state_names[i]);
-                               state ^= 1 << i;
+                               printf("%c", obd_statfs_state2char(mask));
+                               state &= ~mask;
                        }
                }