linux-ext4 - [PATCH 23/31] fuse_trace: invalidate ranges of block devices being used for iomap

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <176169810852.1424854.13302856886300712707.stgit@frogsfrogsfrogs>
Date: Tue, 28 Oct 2025 17:50:57 -0700
From: "Darrick J. Wong" <djwong@...nel.org>
To: djwong@...nel.org, miklos@...redi.hu
Cc: joannelkoong@...il.com, bernd@...ernd.com, neal@...pa.dev,
 linux-ext4@...r.kernel.org, linux-fsdevel@...r.kernel.org
Subject: [PATCH 23/31] fuse_trace: invalidate ranges of block devices being
 used for iomap

From: Darrick J. Wong <djwong@...nel.org>

Add tracepoints for the previous patch.

Signed-off-by: "Darrick J. Wong" <djwong@...nel.org>
---
 fs/fuse/fuse_trace.h |   26 ++++++++++++++++++++++++++
 fs/fuse/file_iomap.c |    2 ++
 2 files changed, 28 insertions(+)


diff --git a/fs/fuse/fuse_trace.h b/fs/fuse/fuse_trace.h
index 6f973149ca72f0..67b9bd8ea52b79 100644
--- a/fs/fuse/fuse_trace.h
+++ b/fs/fuse/fuse_trace.h
@@ -1018,6 +1018,32 @@ TRACE_EVENT(fuse_iomap_config,
 		  __entry->time_min, __entry->time_max, __entry->maxbytes,
 		  __entry->uuid_len)
 );
+
+TRACE_EVENT(fuse_iomap_dev_inval,
+	TP_PROTO(const struct fuse_conn *fc,
+		 const struct fuse_iomap_dev_inval_out *arg),
+	TP_ARGS(fc, arg),
+
+	TP_STRUCT__entry(
+		__field(dev_t,			connection)
+		__field(int,			dev)
+		__field(unsigned long long,	offset)
+		__field(unsigned long long,	length)
+	),
+
+	TP_fast_assign(
+		__entry->connection	=	fc->dev;
+		__entry->dev		=	arg->dev;
+		__entry->offset		=	arg->offset;
+		__entry->length		=	arg->length;
+	),
+
+	TP_printk("connection %u dev %d offset 0x%llx length 0x%llx",
+		  __entry->connection,
+		  __entry->dev,
+		  __entry->offset,
+		  __entry->length)
+);
 #endif /* CONFIG_FUSE_IOMAP */
 
 #endif /* _TRACE_FUSE_H */
diff --git a/fs/fuse/file_iomap.c b/fs/fuse/file_iomap.c
index 332f41eeaf0a87..ebf154d70ccfe2 100644
--- a/fs/fuse/file_iomap.c
+++ b/fs/fuse/file_iomap.c
@@ -1906,6 +1906,8 @@ int fuse_iomap_dev_inval(struct fuse_conn *fc,
 	loff_t end;
 	int ret = 0;
 
+	trace_fuse_iomap_dev_inval(fc, arg);
+
 	if (!fc->iomap || arg->dev == FUSE_IOMAP_DEV_NULL)
 		return -EINVAL;