diff options
| author | Darrick J. Wong <djwong@kernel.org> | 2022-09-30 11:00:24 -0700 |
|---|---|---|
| committer | Darrick J. Wong <djwong@kernel.org> | 2022-10-14 14:16:22 -0700 |
| commit | 1e3d9d3ee8a92a9ad6f494b4deb6235868b8bae1 (patch) | |
| tree | 87902114a0ce4d733c7adecb75b2a870d9f4e931 | |
| parent | a1c5b27148049eecaf21f3298eb11a4d803bf50d (diff) | |
iomap: add a tracepoint for mappings returned by map_blocksiomap-6.1-merge_2022-10-14
Add a new tracepoint so we can see what mapping the filesystem returns
to writeback a dirty page.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
| -rw-r--r-- | fs/iomap/buffered-io.c | 1 | ||||
| -rw-r--r-- | fs/iomap/trace.h | 1 |
2 files changed, 2 insertions, 0 deletions
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) diff --git a/fs/iomap/trace.h b/fs/iomap/trace.h index d48868fc40d7..f6ea9540d082 100644 --- a/fs/iomap/trace.h +++ b/fs/iomap/trace.h @@ -148,6 +148,7 @@ DEFINE_EVENT(iomap_class, name, \ TP_ARGS(inode, iomap)) DEFINE_IOMAP_EVENT(iomap_iter_dstmap); DEFINE_IOMAP_EVENT(iomap_iter_srcmap); +DEFINE_IOMAP_EVENT(iomap_writepage_map); TRACE_EVENT(iomap_iter, TP_PROTO(struct iomap_iter *iter, const void *ops, |