[PATCH v2 2/2] powerpc/xmon: Paginate kernel log buffer display

[Sam Bobroff]

The kernel log buffer is often much longer than the size of a terminal
so paginate it's output.

Signed-off-by: Sam Bobroff <sam.bobroff at au1.ibm.com>
---
 arch/powerpc/xmon/xmon.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c
index 9ce9e7d..fdd765e 100644
--- a/arch/powerpc/xmon/xmon.c
+++ b/arch/powerpc/xmon/xmon.c
@@ -248,9 +248,7 @@ Commands:\n\
 "  u	dump TLB\n"
 #endif
 "  ?	help\n"
-#ifdef CONFIG_PPC64
-"  .#	limit output to # lines per page (dump paca only)\n"
-#endif
+"  .#	limit output to # lines per page (for dp#, dpa, dl)\n"
 "  zr	reboot\n\
   zh	halt\n"
 ;
@@ -850,6 +848,7 @@ static void paged_set_size(void)
 		paged_size = 0;
 	}
 }
+
 static void paged_reset(void)
 {
 	paged_cur_page = 0;
@@ -2372,10 +2371,12 @@ dump_log_buf(void)
 	sync();
 
 	kmsg_dump_rewind_nolock(&dumper);
+	paged_start();
 	while (kmsg_dump_get_line_nolock(&dumper, false, buf, sizeof(buf), &len)) {
 		buf[len] = '\0';
-		printf("%s", buf);
+		XMON_PRINTF("%s", buf);
 	}
+	paged_end("dl\n");
 
 	sync();
 	/* wait a little while to see if we get a machine check */
-- 
2.1.4