From mboxrd@z Thu Jan 1 00:00:00 1970 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 5814D27B34F; Wed, 29 Oct 2025 00:44:58 +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=1761698698; cv=none; b=bOHksTpE5lcUbOr5mYwqlRSTDchRD/O1Q/fFOjQqN2WYA2V/GS3+hgt7+4Si/sSnv7RFo9XWxjZ4jlRgyLqbVXB4qkGscKOteYTVBy58J/ELmXohN/uLd/5JJ2FMbOoDSZAXk8Wg1kVJYFy3bgt70LkVRja4jHweh+UNkfnq8Z0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761698698; c=relaxed/simple; bh=Eu4ngZFJ4JS+V40o8n1BI+FbwqxvEnyp/WWVJaumswE=; h=Date:Subject:From:To:Cc:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=gVV+el+Gy5R54p75G8FzRbNDsdfiTjP5RqsUrwyhWEtCfYBqrRWe4bNlQUCW04W3osm8LnverTdb+kejbj/eCsgTjeVpngR3w3xEj8+AiOuWP9YzsUD0pt9NmnN5ODwgPhjurmfc95ajGAD/QUFXapgzIDP6//9vOHfoLcPxaks= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=ngxY0UE/; 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="ngxY0UE/" Received: by smtp.kernel.org (Postfix) with ESMTPSA id DFE8FC4CEE7; Wed, 29 Oct 2025 00:44:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1761698697; bh=Eu4ngZFJ4JS+V40o8n1BI+FbwqxvEnyp/WWVJaumswE=; h=Date:Subject:From:To:Cc:In-Reply-To:References:From; b=ngxY0UE/ZZPT7QrRPHkAiAb4ZEjeaW5i+99/Cwus3jireb/WpuO/U2RXLrNNSxL/R Ns/noP/K2ZeQ0qSiwALwd5LOR9Kk6dDVHXRa2MKc28eJvGQeZdverADq67dAWl6zVP itG1YQFWt5WihSnzqcWhvvdjNY5jTo2DbFtL8hB4VEcM4Alp8e9A2H1i3ldGsyNnsm x/xthSBM0625qnUBOYUKSZwO/1IcFGUeRDggu6exkwSPnns/UngsP1W6GyFFGZEti6 aTuHy10q+Xv7/GxtBt82wm6srD9eNqQflzrb56hUEliWEjQtMDf21yL0mg12UIjahW aH/dWfzg+d0GA== Date: Tue, 28 Oct 2025 17:44:57 -0700 Subject: [PATCH 2/2] fuse_trace: move the passthrough-specific code back to passthrough.c From: "Darrick J. Wong" To: djwong@kernel.org, miklos@szeredi.hu Cc: joannelkoong@gmail.com, bernd@bsbernd.com, neal@gompa.dev, linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org Message-ID: <176169809851.1424693.14006418302806790576.stgit@frogsfrogsfrogs> In-Reply-To: <176169809796.1424693.4820699158982303428.stgit@frogsfrogsfrogs> References: <176169809796.1424693.4820699158982303428.stgit@frogsfrogsfrogs> Precedence: bulk X-Mailing-List: linux-ext4@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: Darrick J. Wong Add tracepoints for the previous patch. Signed-off-by: "Darrick J. Wong" --- fs/fuse/fuse_trace.h | 35 +++++++++++++++++++++++++++++++++++ fs/fuse/backing.c | 5 +++++ 2 files changed, 40 insertions(+) diff --git a/fs/fuse/fuse_trace.h b/fs/fuse/fuse_trace.h index bbe9ddd8c71696..286a0845dc0898 100644 --- a/fs/fuse/fuse_trace.h +++ b/fs/fuse/fuse_trace.h @@ -124,6 +124,41 @@ TRACE_EVENT(fuse_request_end, __entry->unique, __entry->len, __entry->error) ); +#ifdef CONFIG_FUSE_BACKING +TRACE_EVENT(fuse_backing_class, + TP_PROTO(const struct fuse_conn *fc, unsigned int idx, + const struct fuse_backing *fb), + + TP_ARGS(fc, idx, fb), + + TP_STRUCT__entry( + __field(dev_t, connection) + __field(unsigned int, idx) + __field(unsigned long, ino) + ), + + TP_fast_assign( + struct inode *inode = file_inode(fb->file); + + __entry->connection = fc->dev; + __entry->idx = idx; + __entry->ino = inode->i_ino; + ), + + TP_printk("connection %u idx %u ino 0x%lx", + __entry->connection, + __entry->idx, + __entry->ino) +); +#define DEFINE_FUSE_BACKING_EVENT(name) \ +DEFINE_EVENT(fuse_backing_class, name, \ + TP_PROTO(const struct fuse_conn *fc, unsigned int idx, \ + const struct fuse_backing *fb), \ + TP_ARGS(fc, idx, fb)) +DEFINE_FUSE_BACKING_EVENT(fuse_backing_open); +DEFINE_FUSE_BACKING_EVENT(fuse_backing_close); +#endif /* CONFIG_FUSE_BACKING */ + #endif /* _TRACE_FUSE_H */ #undef TRACE_INCLUDE_PATH diff --git a/fs/fuse/backing.c b/fs/fuse/backing.c index f5efbffd0f456b..b83a3c1b2dff7a 100644 --- a/fs/fuse/backing.c +++ b/fs/fuse/backing.c @@ -72,6 +72,7 @@ static int fuse_backing_id_free(int id, void *p, void *data) WARN_ON_ONCE(refcount_read(&fb->count) != 1); + trace_fuse_backing_close((struct fuse_conn *)data, id, fb); fuse_backing_free(fb); return 0; } @@ -145,6 +146,8 @@ int fuse_backing_open(struct fuse_conn *fc, struct fuse_backing_map *map) fb = NULL; goto out; } + + trace_fuse_backing_open(fc, res, fb); out: pr_debug("%s: fb=0x%p, ret=%i\n", __func__, fb, res); @@ -194,6 +197,8 @@ int fuse_backing_close(struct fuse_conn *fc, int backing_id) if (err) goto out_fb; + trace_fuse_backing_close(fc, backing_id, fb); + err = -ENOENT; test_fb = fuse_backing_id_remove(fc, backing_id); if (!test_fb)