From adc9c2e5a723052de4f5bd7e3d6add050ba400e1 Mon Sep 17 00:00:00 2001 From: "Darrick J. Wong" Date: Fri, 30 Sep 2022 17:02:32 -0700 Subject: iomap: add a tracepoint for mappings returned by map_blocks Add a new tracepoint so we can see what mapping the filesystem returns to writeback a dirty page. Signed-off-by: Darrick J. Wong Reviewed-by: Dave Chinner --- fs/iomap/buffered-io.c | 1 + 1 file changed, 1 insertion(+) (limited to 'fs/iomap/buffered-io.c') diff --git a/fs/iomap/buffered-io.c b/fs/iomap/buffered-io.c index 77d59c159248..91ee0b308e13 100644 --- a/fs/iomap/buffered-io.c +++ b/fs/iomap/buffered-io.c @@ -1360,6 +1360,7 @@ iomap_writepage_map(struct iomap_writepage_ctx *wpc, error = wpc->ops->map_blocks(wpc, inode, pos); if (error) break; + trace_iomap_writepage_map(inode, &wpc->iomap); if (WARN_ON_ONCE(wpc->iomap.type == IOMAP_INLINE)) continue; if (wpc->iomap.type == IOMAP_HOLE) -- cgit v1.2.3