diff options
| author | Darrick J. Wong <djwong@kernel.org> | 2025-09-16 08:00:29 -0700 |
|---|---|---|
| committer | Christian Brauner <brauner@kernel.org> | 2025-09-19 14:17:11 +0200 |
| commit | 231af8c14f0f1574ce5d5e66b48f0087a6a764e3 (patch) | |
| tree | f3180fd61ed056d300dceeb8df8b356ff7638672 | |
| parent | 8f5ae30d69d7543eee0d70083daf4de8fe15d585 (diff) | |
iomap: trace iomap_zero_iter zeroing activities
Trace which bytes actually get zeroed.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Link: https://lore.kernel.org/175803480303.966383.2380024013746734540.stgit@frogsfrogsfrogs
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Christian Brauner <brauner@kernel.org>
| -rw-r--r-- | fs/iomap/buffered-io.c | 3 | ||||
| -rw-r--r-- | fs/iomap/trace.h | 1 |
2 files changed, 4 insertions, 0 deletions
diff --git a/fs/iomap/buffered-io.c b/fs/iomap/buffered-io.c index fd827398afd2..ed7dd6426b0e 100644 --- a/fs/iomap/buffered-io.c +++ b/fs/iomap/buffered-io.c @@ -1396,6 +1396,9 @@ static int iomap_zero_iter(struct iomap_iter *iter, bool *did_zero, /* warn about zeroing folios beyond eof that won't write back */ WARN_ON_ONCE(folio_pos(folio) > iter->inode->i_size); + trace_iomap_zero_iter(iter->inode, folio_pos(folio) + offset, + bytes); + folio_zero_range(folio, offset, bytes); folio_mark_accessed(folio); diff --git a/fs/iomap/trace.h b/fs/iomap/trace.h index 6ad66e6ba653..a61c1dae4742 100644 --- a/fs/iomap/trace.h +++ b/fs/iomap/trace.h @@ -84,6 +84,7 @@ DEFINE_RANGE_EVENT(iomap_release_folio); DEFINE_RANGE_EVENT(iomap_invalidate_folio); DEFINE_RANGE_EVENT(iomap_dio_invalidate_fail); DEFINE_RANGE_EVENT(iomap_dio_rw_queued); +DEFINE_RANGE_EVENT(iomap_zero_iter); #define IOMAP_TYPE_STRINGS \ { IOMAP_HOLE, "HOLE" }, \ |