diff options
| -rw-r--r-- | fs/dax.c | 1 | ||||
| -rw-r--r-- | include/trace/events/fs_dax.h | 24 |
2 files changed, 25 insertions, 0 deletions
@@ -823,6 +823,7 @@ static int dax_writeback_one(struct block_device *bdev, spin_lock_irq(&mapping->tree_lock); radix_tree_tag_clear(page_tree, index, PAGECACHE_TAG_DIRTY); spin_unlock_irq(&mapping->tree_lock); + trace_dax_writeback_one(mapping->host, index, size >> PAGE_SHIFT); dax_unlock: dax_read_unlock(id); put_locked_mapping_entry(mapping, index, entry); diff --git a/include/trace/events/fs_dax.h b/include/trace/events/fs_dax.h index 9afe8c8f0bef..292a4719edd0 100644 --- a/include/trace/events/fs_dax.h +++ b/include/trace/events/fs_dax.h @@ -226,6 +226,30 @@ DEFINE_EVENT(dax_writeback_range_class, name, \ DEFINE_WRITEBACK_RANGE_EVENT(dax_writeback_range); DEFINE_WRITEBACK_RANGE_EVENT(dax_writeback_range_done); +TRACE_EVENT(dax_writeback_one, + TP_PROTO(struct inode *inode, pgoff_t pgoff, pgoff_t pglen), + TP_ARGS(inode, pgoff, pglen), + TP_STRUCT__entry( + __field(unsigned long, ino) + __field(pgoff_t, pgoff) + __field(pgoff_t, pglen) + __field(dev_t, dev) + ), + TP_fast_assign( + __entry->dev = inode->i_sb->s_dev; + __entry->ino = inode->i_ino; + __entry->pgoff = pgoff; + __entry->pglen = pglen; + ), + TP_printk("dev %d:%d ino %#lx pgoff %#lx pglen %#lx", + MAJOR(__entry->dev), + MINOR(__entry->dev), + __entry->ino, + __entry->pgoff, + __entry->pglen + ) +) + #endif /* _TRACE_FS_DAX_H */ /* This part must be outside protection */ |