From d1871b38fccdc4b6575b0cabdea9e06bc70167eb Mon Sep 17 00:00:00 2001
From: Jason Wessel <jason.wessel@windriver.com>
Date: Sun, 26 Aug 2012 21:43:12 -0500
Subject: [PATCH] kdb: Fix dmesg/bta scroll to quit with 'q'
If you press 'q' the pager should exit instead of printing everything
from dmesg which can really bog down a 9600 baud serial link.
The same is true for the bta command.
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
---
kernel/debug/kdb/kdb_bt.c | 2 ++
kernel/debug/kdb/kdb_main.c | 2 ++
2 files changed, 4 insertions(+)
diff --git a/kernel/debug/kdb/kdb_bt.c b/kernel/debug/kdb/kdb_bt.c
index 07c9bbb94a0b3..b03e0e814e43b 100644
--- a/kernel/debug/kdb/kdb_bt.c
+++ b/kernel/debug/kdb/kdb_bt.c
@@ -129,6 +129,8 @@ kdb_bt(int argc, const char **argv)
}
/* Now the inactive tasks */
kdb_do_each_thread(g, p) {
+ if (KDB_FLAG(CMD_INTERRUPT))
+ return 0;
if (task_curr(p))
continue;
if (kdb_bt1(p, mask, argcount, btaprompt))
diff --git a/kernel/debug/kdb/kdb_main.c b/kernel/debug/kdb/kdb_main.c
index 31df1706b9a93..1afeb5c1e5a92 100644
--- a/kernel/debug/kdb/kdb_main.c
+++ b/kernel/debug/kdb/kdb_main.c
@@ -2100,6 +2100,8 @@ static int kdb_dmesg(int argc, const char **argv)
}
if (!lines--)
break;
+ if (KDB_FLAG(CMD_INTERRUPT))
+ return 0;
kdb_printf("%.*s\n", (int)len - 1, buf);
}
--
GitLab