The quilt patch titled
Subject: mm: vmalloc: add purge_vmap_area_lazy trace event
has been removed from the -mm tree. Its filename was
mm-vmalloc-add-purge_vmap_area_lazy-trace-event.patch
This patch was dropped because it was merged into the mm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
------------------------------------------------------
From: "Uladzislau Rezki (Sony)" <urezki@xxxxxxxxx>
Subject: mm: vmalloc: add purge_vmap_area_lazy trace event
Date: Tue, 18 Oct 2022 20:10:48 +0200
It is for debug purposes to track number of freed vmap areas including a
range it occurs on.
Link: https://lkml.kernel.org/r/20221018181053.434508-3-urezki@xxxxxxxxx
Signed-off-by: Uladzislau Rezki (Sony) <urezki@xxxxxxxxx>
Reviewed-by: Steven Rostedt (Google) <rostedt@xxxxxxxxxxx>
Reviewed-by: Christoph Hellwig <hch@xxxxxx>
Cc: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Cc: Nicholas Piggin <npiggin@xxxxxxxxx>
Cc: Oleksiy Avramchenko <oleksiy.avramchenko@xxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/trace/events/vmalloc.h | 33 +++++++++++++++++++++++++++++++
1 file changed, 33 insertions(+)
--- a/include/trace/events/vmalloc.h~mm-vmalloc-add-purge_vmap_area_lazy-trace-event
+++ a/include/trace/events/vmalloc.h
@@ -50,6 +50,39 @@ TRACE_EVENT(alloc_vmap_area,
__entry->vstart, __entry->vend, __entry->failed)
);
+/**
+ * purge_vmap_area_lazy - called when vmap areas were lazily freed
+ * @start: purging start address
+ * @end: purging end address
+ * @npurged: numbed of purged vmap areas
+ *
+ * This event is used for a debug purpose. It gives some
+ * indication about start:end range and how many objects
+ * are released.
+ */
+TRACE_EVENT(purge_vmap_area_lazy,
+
+ TP_PROTO(unsigned long start, unsigned long end,
+ unsigned int npurged),
+
+ TP_ARGS(start, end, npurged),
+
+ TP_STRUCT__entry(
+ __field(unsigned long, start)
+ __field(unsigned long, end)
+ __field(unsigned int, npurged)
+ ),
+
+ TP_fast_assign(
+ __entry->start = start;
+ __entry->end = end;
+ __entry->npurged = npurged;
+ ),
+
+ TP_printk("start=0x%lx end=0x%lx num_purged=%u",
+ __entry->start, __entry->end, __entry->npurged)
+);
+
#endif /* _TRACE_VMALLOC_H */
/* This part must be outside protection */
_
Patches currently in -mm which might be from urezki@xxxxxxxxx are
