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| author |   Kassey Li <quic_yingangl@quicinc.com> | 2024-02-19 10:11:38 +0800 |
|---|---|---|
| committer |   Christian Brauner <brauner@kernel.org> | 2024-02-21 08:37:50 +0100 |
| commit | dcd04ea587b210e78a85d6d4d7cc6765828496b0 (patch) | |
| tree | b5bda587afe0f5ef4c02ee0e769f4ddf739c99be | |
| parent | iomap: add pos and dirty_len into trace_iomap_writepage_map (diff) | |
| download | wireguard-linux-dcd04ea587b210e78a85d6d4d7cc6765828496b0.tar.xz wireguard-linux-dcd04ea587b210e78a85d6d4d7cc6765828496b0.zip | |
iomap: Add processed for iomap_iter
processed: The number of bytes processed by the body in the
most recent iteration, or a negative errno. 0 causes the iteration to
stop.
The processed is useful to check when the loop breaks.
Signed-off-by: Kassey Li <quic_yingangl@quicinc.com>
Link: https://lore.kernel.org/r/20240219021138.3481763-1-quic_yingangl@quicinc.com
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
| -rw-r--r-- | fs/iomap/trace.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/fs/iomap/trace.h b/fs/iomap/trace.h index 3ef694f9489f..0a991c4ce87d 100644 --- a/fs/iomap/trace.h +++ b/fs/iomap/trace.h @@ -206,6 +206,7 @@ TRACE_EVENT(iomap_iter, __field(u64, ino) __field(loff_t, pos) __field(u64, length) + __field(s64, processed) __field(unsigned int, flags) __field(const void *, ops) __field(unsigned long, caller) @@ -215,15 +216,17 @@ TRACE_EVENT(iomap_iter, __entry->ino = iter->inode->i_ino; __entry->pos = iter->pos; __entry->length = iomap_length(iter); + __entry->processed = iter->processed; __entry->flags = iter->flags; __entry->ops = ops; __entry->caller = caller; ), - TP_printk("dev %d:%d ino 0x%llx pos 0x%llx length 0x%llx flags %s (0x%x) ops %ps caller %pS", + TP_printk("dev %d:%d ino 0x%llx pos 0x%llx length 0x%llx processed %lld flags %s (0x%x) ops %ps caller %pS", MAJOR(__entry->dev), MINOR(__entry->dev), __entry->ino, __entry->pos, __entry->length, + __entry->processed, __print_flags(__entry->flags, "|", IOMAP_FLAGS_STRINGS), __entry->flags, __entry->ops, |