lsblk: add add_random columns

Allow printing of queue/add_random attribute which describes
if device adds randomness to kernel RNG pool.

Signed-off-by: Milan Broz <mbroz@redhat.com>

diff --git a/misc-utils/lsblk.c b/misc-utils/lsblk.c
index 2410de4cf1d876e24dec70950d10fd0cc1002a8a..3a980db3ad5f1d267f45c20f1bfa66c5c68af689 100644 (file)
--- a/misc-utils/lsblk.c
+++ b/misc-utils/lsblk.c
@@ -96,6 +96,7 @@ enum {
        COL_DMAX,
        COL_DZERO,
        COL_WWN,
+       COL_RAND,
 };
 
 /* column names */
@@ -123,6 +124,7 @@ static struct colinfo infos[] = {
        [COL_RO]     = { "RO",      1, TT_FL_RIGHT, N_("read-only device") },
        [COL_RM]     = { "RM",      1, TT_FL_RIGHT, N_("removable device") },
        [COL_ROTA]   = { "ROTA",    1, TT_FL_RIGHT, N_("rotational device") },
+       [COL_RAND]   = { "RAND",    1, TT_FL_RIGHT, N_("adds randomness") },
        [COL_MODEL]  = { "MODEL",   0.1, TT_FL_TRUNC, N_("device identifier") },
        [COL_SIZE]   = { "SIZE",    5, TT_FL_RIGHT, N_("size of the device") },
        [COL_STATE]  = { "STATE",   7, TT_FL_TRUNC, N_("state of the device") },
@@ -690,6 +692,11 @@ static void set_tt_data(struct blkdev_cxt *cxt, int col, int id, struct tt_line
                if (p)
                        tt_line_set_data(ln, col, p);
                break;
+       case COL_RAND:
+               p = sysfs_strdup(&cxt->sysfs, "queue/add_random");
+               if (p)
+                       tt_line_set_data(ln, col, p);
+               break;
        case COL_MODEL:
                if (!cxt->partition && cxt->nslaves == 0) {
                        p = sysfs_strdup(&cxt->sysfs, "device/model");