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-rw-r--r--include/trace/events/filemap.h116
1 files changed, 116 insertions, 0 deletions
diff --git a/include/trace/events/filemap.h b/include/trace/events/filemap.h
new file mode 100644
index 000000000..796053e16
--- /dev/null
+++ b/include/trace/events/filemap.h
@@ -0,0 +1,116 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM filemap
+
+#if !defined(_TRACE_FILEMAP_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_FILEMAP_H
+
+#include <linux/types.h>
+#include <linux/tracepoint.h>
+#include <linux/mm.h>
+#include <linux/memcontrol.h>
+#include <linux/device.h>
+#include <linux/kdev_t.h>
+#include <linux/errseq.h>
+
+DECLARE_EVENT_CLASS(mm_filemap_op_page_cache,
+
+ TP_PROTO(struct page *page),
+
+ TP_ARGS(page),
+
+ TP_STRUCT__entry(
+ __field(unsigned long, pfn)
+ __field(unsigned long, i_ino)
+ __field(unsigned long, index)
+ __field(dev_t, s_dev)
+ ),
+
+ TP_fast_assign(
+ __entry->pfn = page_to_pfn(page);
+ __entry->i_ino = page->mapping->host->i_ino;
+ __entry->index = page->index;
+ if (page->mapping->host->i_sb)
+ __entry->s_dev = page->mapping->host->i_sb->s_dev;
+ else
+ __entry->s_dev = page->mapping->host->i_rdev;
+ ),
+
+ TP_printk("dev %d:%d ino %lx page=%p pfn=%lu ofs=%lu",
+ MAJOR(__entry->s_dev), MINOR(__entry->s_dev),
+ __entry->i_ino,
+ pfn_to_page(__entry->pfn),
+ __entry->pfn,
+ __entry->index << PAGE_SHIFT)
+);
+
+DEFINE_EVENT(mm_filemap_op_page_cache, mm_filemap_delete_from_page_cache,
+ TP_PROTO(struct page *page),
+ TP_ARGS(page)
+ );
+
+DEFINE_EVENT(mm_filemap_op_page_cache, mm_filemap_add_to_page_cache,
+ TP_PROTO(struct page *page),
+ TP_ARGS(page)
+ );
+
+TRACE_EVENT(filemap_set_wb_err,
+ TP_PROTO(struct address_space *mapping, errseq_t eseq),
+
+ TP_ARGS(mapping, eseq),
+
+ TP_STRUCT__entry(
+ __field(unsigned long, i_ino)
+ __field(dev_t, s_dev)
+ __field(errseq_t, errseq)
+ ),
+
+ TP_fast_assign(
+ __entry->i_ino = mapping->host->i_ino;
+ __entry->errseq = eseq;
+ if (mapping->host->i_sb)
+ __entry->s_dev = mapping->host->i_sb->s_dev;
+ else
+ __entry->s_dev = mapping->host->i_rdev;
+ ),
+
+ TP_printk("dev=%d:%d ino=0x%lx errseq=0x%x",
+ MAJOR(__entry->s_dev), MINOR(__entry->s_dev),
+ __entry->i_ino, __entry->errseq)
+);
+
+TRACE_EVENT(file_check_and_advance_wb_err,
+ TP_PROTO(struct file *file, errseq_t old),
+
+ TP_ARGS(file, old),
+
+ TP_STRUCT__entry(
+ __field(struct file *, file)
+ __field(unsigned long, i_ino)
+ __field(dev_t, s_dev)
+ __field(errseq_t, old)
+ __field(errseq_t, new)
+ ),
+
+ TP_fast_assign(
+ __entry->file = file;
+ __entry->i_ino = file->f_mapping->host->i_ino;
+ if (file->f_mapping->host->i_sb)
+ __entry->s_dev =
+ file->f_mapping->host->i_sb->s_dev;
+ else
+ __entry->s_dev =
+ file->f_mapping->host->i_rdev;
+ __entry->old = old;
+ __entry->new = file->f_wb_err;
+ ),
+
+ TP_printk("file=%p dev=%d:%d ino=0x%lx old=0x%x new=0x%x",
+ __entry->file, MAJOR(__entry->s_dev),
+ MINOR(__entry->s_dev), __entry->i_ino, __entry->old,
+ __entry->new)
+);
+#endif /* _TRACE_FILEMAP_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>