From: Theodore Ts'o Subject: [PATCH] ext4: ratelimit the file system mounted message Date: Sat, 15 Aug 2015 14:59:57 -0400 Message-ID: <1439665197-10766-1-git-send-email-tytso@mit.edu> Cc: Theodore Ts'o To: Ext4 Developers List Return-path: Received: from imap.thunk.org ([74.207.234.97]:60563 "EHLO imap.thunk.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752109AbbHOTAA (ORCPT ); Sat, 15 Aug 2015 15:00:00 -0400 Sender: linux-ext4-owner@vger.kernel.org List-ID: The xfstests ext4/305 will mount and unmount the same file system over 4,000 times, and each one of these will cause a system log message. Ratelimit this message since if we are getting more than a few dozen of these messages, they probably aren't going to be helpful. Signed-off-by: Theodore Ts'o --- fs/ext4/super.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 70c52ea..45658c1 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -60,6 +60,7 @@ static struct ext4_lazy_init *ext4_li_info; static struct mutex ext4_li_mtx; static struct ext4_features *ext4_feat; static int ext4_mballoc_ready; +static struct ratelimit_state ext4_mount_msg_ratelimit; static int ext4_load_journal(struct super_block *, struct ext4_super_block *, unsigned long journal_devnum); @@ -4277,9 +4278,10 @@ no_journal: "the device does not support discard"); } - ext4_msg(sb, KERN_INFO, "mounted filesystem with%s. " - "Opts: %s%s%s", descr, sbi->s_es->s_mount_opts, - *sbi->s_es->s_mount_opts ? "; " : "", orig_data); + if (___ratelimit(&ext4_mount_msg_ratelimit, "EXT4-fs mount")) + ext4_msg(sb, KERN_INFO, "mounted filesystem with%s. " + "Opts: %s%s%s", descr, sbi->s_es->s_mount_opts, + *sbi->s_es->s_mount_opts ? "; " : "", orig_data); if (es->s_error_count) mod_timer(&sbi->s_err_report, jiffies + 300*HZ); /* 5 minutes */ @@ -5617,6 +5619,7 @@ static int __init ext4_init_fs(void) { int i, err; + ratelimit_state_init(&ext4_mount_msg_ratelimit, 30 * HZ, 64); ext4_li_info = NULL; mutex_init(&ext4_li_mtx); -- 2.5.0