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ANDROID: dma-buf: Add vendor hook for deferred dmabuf sysfs stats release

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This vendor hook allows for the sysfs activity associated with
dma-buf-sysfs-stats teardowns to be performed asynchronously similar
to how the initialization works.

Bug: 254192604
Signed-off-by: T.J. Mercier <tjmercier@google.com>
Change-Id: Ie076d0f8f67b96a97c71d9e6bf90539ebd9807bf
(cherry picked from commit 549f6fcc90a8a3a2640805bf1753de21a074c17f)
This commit is contained in:
T.J. Mercier
2024-06-17 15:37:23 +08:00
committed by yipeng xiang
parent 952ba0ed61
commit 0d385a5b58
3 changed files with 29 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/android/vendor_hooks.c
+2
View File
@@ -56,6 +56,7 @@
#include <trace/hooks/regmap.h>
#include <trace/hooks/softlockup.h>
#include <trace/hooks/power.h>
#include <trace/hooks/dmabuf.h>
/*
* Export tracepoints that act as a bare tracehook (ie: have no trace event
@@ -210,6 +211,7 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_try_to_freeze_todo);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_try_to_freeze_todo_unfrozen);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_die_kernel_fault);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_do_sp_pc_abort);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_dma_buf_stats_teardown);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_dpm_wait_start);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_dpm_wait_finish);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_sync_irq_wait_start);
drivers/dma-buf/dma-buf-sysfs-stats.c
+7 -2
View File
@@ -12,6 +12,7 @@
#include <linux/slab.h>
#include <linux/sysfs.h>
#include <linux/workqueue.h>
#include <trace/hooks/dmabuf.h>
#include "dma-buf-sysfs-stats.h"
@@ -122,13 +123,17 @@ static const struct kobj_type dma_buf_ktype = {
void dma_buf_stats_teardown(struct dma_buf *dmabuf)
{
struct dma_buf_sysfs_entry *sysfs_entry;
bool skip_sysfs_release = false;
sysfs_entry = dmabuf->sysfs_entry;
if (!sysfs_entry)
return;
kobject_del(&sysfs_entry->kobj);
kobject_put(&sysfs_entry->kobj);
trace_android_rvh_dma_buf_stats_teardown(sysfs_entry, &skip_sysfs_release);
if (!skip_sysfs_release) {
kobject_del(&sysfs_entry->kobj);
kobject_put(&sysfs_entry->kobj);
}
}
include/trace/hooks/dmabuf.h
+20
View File
@@ -0,0 +1,20 @@
/* SPDX-License-Identifier: GPL-2.0 */
#undef TRACE_SYSTEM
#define TRACE_SYSTEM dmabuf
#undef TRACE_INCLUDE_PATH
#define TRACE_INCLUDE_PATH trace/hooks
#if !defined(_TRACE_HOOK_DMABUF_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_HOOK_DMABUF_H
#include <trace/hooks/vendor_hooks.h>
struct dma_buf_sysfs_entry;
DECLARE_RESTRICTED_HOOK(android_rvh_dma_buf_stats_teardown,
TP_PROTO(struct dma_buf_sysfs_entry *sysfs_entry, bool *skip_sysfs_release),
TP_ARGS(sysfs_entry, skip_sysfs_release), 1);
#endif /* _TRACE_HOOK_DMABUF_H */
/* This part must be outside protection */
#include <trace/define_trace.h>