diff mbox series

[-next,1/3] ftrace: Fix the possible incorrect kernel message

Message ID 20221109094434.84046-2-wangwensheng4@huawei.com
State New
Headers
Series Optimize code for ftrace |

Commit Message

Wang Wensheng Nov. 9, 2022, 9:44 a.m. UTC 
  If the number of mcount entries is an integer multiple of
ENTRIES_PER_PAGE, the page count showing on the console would be wrong.

Signed-off-by: Wang Wensheng <wangwensheng4@huawei.com>
---
 kernel/trace/ftrace.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index fbf2543111c0..c571c2813c11 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -7401,7 +7401,7 @@  void __init ftrace_init(void)
 	}
 
 	pr_info("ftrace: allocating %ld entries in %ld pages\n",
-		count, count / ENTRIES_PER_PAGE + 1);
+		count, DIV_ROUND_UP(count, ENTRIES_PER_PAGE));
 
 	ret = ftrace_process_locs(NULL,
 				  __start_mcount_loc,