From patchwork Thu Jun 27 01:00:23 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jeff Layton X-Patchwork-Id: 13713697 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 61D7C1CA96; Thu, 27 Jun 2024 01:00:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1719450042; cv=none; b=o5nWBA1FqUCiKmdl+98w/mVlY690rTr/kcfCPkCEnm1eM0g0gwXHQvS87eWodU+NRtbC9BuzTcHaolv+G1u15lRB+xltoNXIoky2O2StMIrAgRhkrma5sZRyMo+4fxCDTpSOFuLXd0h+SuclrEFXmyhcpxhupUmADjODs8SqSo0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1719450042; c=relaxed/simple; bh=TvAqWM+1osikcEDt9i0N4WD9vik81z9fLBMKtBzROY8=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=UGAfe31vgdc5t9b4v4HWPYZG4CBWHZhlW6oe0DDPpIDH6E6J+Ua23japNVTF1LAQM3IroNkPzdc6IJylKMyb0apsa4U/IasLCVrNTLep8HrSy2MCTGJbVDQAEoLqTPj4Aa2yJOjSI0pUwBOOigV4vPUoZLrlJJGIF/Z1Y2y9s8g= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=ksKFkOIP; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="ksKFkOIP" Received: by smtp.kernel.org (Postfix) with ESMTPSA id DAC7AC4AF0B; Thu, 27 Jun 2024 01:00:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1719450040; bh=TvAqWM+1osikcEDt9i0N4WD9vik81z9fLBMKtBzROY8=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=ksKFkOIPD8B+IxtigbTwAuwg7Zi3C4sksnJDk2qwCJDFyBnx1CPl9lxXsmpzlgulQ oLA6EsYD01q3aGiBq4BfIGKTX52cJ08PoKvb/WjeTLD7aXGncsmrJ5iQqkIs6koBN5 PntCYREhRs+JdmWkpQPu4EYd2sOl9h5/ef20IY8uXouz6gRCbIZn6/h+Cu9qX++hGI wWq1wfUzUDxJm8GlIJ7HqUjuKqY4jEcJInvTHEOkFgVNG8iGkrKAsAUbep1WEVNkDa 7//UcWBy59SpfzyrHYM9wjhLB9RsJ7Qt0zcefYSVywwoenGVR3Jq4SIO75qebeN1JB Cb1MI9Oqjs3LQ== From: Jeff Layton Date: Wed, 26 Jun 2024 21:00:23 -0400 Subject: [PATCH 03/10] fs: tracepoints for inode_needs_update_time and inode_set_ctime_to_ts Precedence: bulk X-Mailing-List: linux-trace-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240626-mgtime-v1-3-a189352d0f8f@kernel.org> References: <20240626-mgtime-v1-0-a189352d0f8f@kernel.org> In-Reply-To: <20240626-mgtime-v1-0-a189352d0f8f@kernel.org> To: Alexander Viro , Christian Brauner , Jan Kara , Steven Rostedt , Masami Hiramatsu , Mathieu Desnoyers , Chandan Babu R , "Darrick J. Wong" , Theodore Ts'o , Andreas Dilger , Chris Mason , Josef Bacik , David Sterba , Hugh Dickins , Andrew Morton Cc: kernel-team@fb.com, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, linux-xfs@vger.kernel.org, linux-ext4@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-mm@kvack.org, linux-nfs@vger.kernel.org, Jeff Layton X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=3425; i=jlayton@kernel.org; h=from:subject:message-id; bh=TvAqWM+1osikcEDt9i0N4WD9vik81z9fLBMKtBzROY8=; b=owEBbQKS/ZANAwAIAQAOaEEZVoIVAcsmYgBmfLmu38o34Gc3uLqCC/KtRitsdQUwQQbBScUNZ xY97hHdyEiJAjMEAAEIAB0WIQRLwNeyRHGyoYTq9dMADmhBGVaCFQUCZny5rgAKCRAADmhBGVaC FUP6EACD4iVg9GXP9iA3Hn8lRNdHlGJ6Zy6M9ZhDcO6x6OiRZzdFfP0NgHKsFPdn2OnfETkahlZ GUYNkkiTUcbmS8kx8uGOv0t2By1BwU5Gig2xbUvCChWSNLlpJhfcSACoiyd3Z59dwnqyIlknHWL 8lAD6m4QwwRpgRn8dz96Nbern/BwQ0MwgiSe7fxAD3xczDWM9eA7g9oxyCUy0x4Cgm+whV328Z9 hVdTS7f3eBcfHjWyeP1EnceVlTAsZs55rwZp/uq53sUR8IZE31t8KK3XM2rOrGg6SXH51CWroSb 45P0mbHembc5ibT3BDy30BAAEXJscI/6aAaL1BfiROPo1JseAG/df7eQmzoAmTlFy9t+UvqCnhd 7c2goYMJrTEA3tUyWUa0RwqW6+bDSu3Gv2LxV4qNB0WaQF/rIGLZ6hdnysOdxXn80tLhbfatHuX YGY/56WUTpv9/Z5ooc6sHzggBFFcg0dFcPodRFmWgU4xTPL/xHRvRCpRSMLnPdW7mv4n3eswylP Q6K9QndkigtGk0lmq2U3HKGnXQR0K5wAJa9j1z1I3itPf1HVhdOxbBdQo5JOWaCOpXwovRowb4v pAEjUph2heWJ8O4jIFjj59Ct5FN1CInMMqtcROERa4vnmgpo4B2FVbZ8yTNqEDCkpdZaG2hby5r 9MAyoeJnmKNLXKw== X-Developer-Key: i=jlayton@kernel.org; a=openpgp; fpr=4BC0D7B24471B2A184EAF5D3000E684119568215 Add a new tracepoint for when we're testing whether the timestamps need updating, and around the update itself. Signed-off-by: Jeff Layton --- fs/inode.c | 4 +++ include/trace/events/timestamp.h | 76 ++++++++++++++++++++++++++++++++++++++++ 2 files changed, 80 insertions(+) diff --git a/fs/inode.c b/fs/inode.c index 7b0a73ed499d..5d2b0dfe48c3 100644 --- a/fs/inode.c +++ b/fs/inode.c @@ -22,6 +22,8 @@ #include #include #include +#define CREATE_TRACE_POINTS +#include #include "internal.h" /* @@ -2096,6 +2098,7 @@ static int inode_needs_update_time(struct inode *inode) if (IS_I_VERSION(inode) && inode_iversion_need_inc(inode)) sync_it |= S_VERSION; + trace_inode_needs_update_time(inode, &now, &ts, sync_it); return sync_it; } @@ -2522,6 +2525,7 @@ EXPORT_SYMBOL(inode_get_ctime); struct timespec64 inode_set_ctime_to_ts(struct inode *inode, struct timespec64 ts) { inode->__i_ctime = ktime_set(ts.tv_sec, ts.tv_nsec); + trace_inode_set_ctime_to_ts(inode, &ts); return ts; } EXPORT_SYMBOL(inode_set_ctime_to_ts); diff --git a/include/trace/events/timestamp.h b/include/trace/events/timestamp.h new file mode 100644 index 000000000000..35ff875d3800 --- /dev/null +++ b/include/trace/events/timestamp.h @@ -0,0 +1,76 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#undef TRACE_SYSTEM +#define TRACE_SYSTEM timestamp + +#if !defined(_TRACE_TIMESTAMP_H) || defined(TRACE_HEADER_MULTI_READ) +#define _TRACE_TIMESTAMP_H + +#include +#include + +TRACE_EVENT(inode_needs_update_time, + TP_PROTO(struct inode *inode, + struct timespec64 *now, + struct timespec64 *ctime, + int sync_it), + + TP_ARGS(inode, now, ctime, sync_it), + + TP_STRUCT__entry( + __field(dev_t, dev) + __field(ino_t, ino) + __field(time64_t, now_sec) + __field(time64_t, ctime_sec) + __field(long, now_nsec) + __field(long, ctime_nsec) + __field(int, sync_it) + ), + + TP_fast_assign( + __entry->dev = inode->i_sb->s_dev; + __entry->ino = inode->i_ino; + __entry->sync_it = sync_it; + __entry->now_sec = now->tv_sec; + __entry->ctime_sec = ctime->tv_sec; + __entry->now_nsec = now->tv_nsec; + __entry->ctime_nsec = ctime->tv_nsec; + __entry->sync_it = sync_it; + ), + + TP_printk("ino=%d:%d:%ld sync_it=%d now=%llu.%ld ctime=%llu.%lu", + MAJOR(__entry->dev), MINOR(__entry->dev), __entry->ino, + __entry->sync_it, + __entry->now_sec, __entry->now_nsec, + __entry->ctime_sec, __entry->ctime_nsec + ) +); + +TRACE_EVENT(inode_set_ctime_to_ts, + TP_PROTO(struct inode *inode, + struct timespec64 *ts), + + TP_ARGS(inode, ts), + + TP_STRUCT__entry( + __field(dev_t, dev) + __field(ino_t, ino) + __field(time64_t, ts_sec) + __field(long, ts_nsec) + ), + + TP_fast_assign( + __entry->dev = inode->i_sb->s_dev; + __entry->ino = inode->i_ino; + __entry->ts_sec = ts->tv_sec; + __entry->ts_nsec = ts->tv_nsec; + ), + + TP_printk("ino=%d:%d:%ld ts=%llu.%lu", + MAJOR(__entry->dev), MINOR(__entry->dev), __entry->ino, + __entry->ts_sec, __entry->ts_nsec + ) +); +#endif /* _TRACE_TIMESTAMP_H */ + +/* This part must be outside protection */ +#include