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ANDROID: vendor_hooks: add vendor hooks for bd_link_disk_holder

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Add a vendor hook for bd_link_disk_holder. It is proposed to modify the
oem_data in the struct gendisk to store a pointer. It will help us to
use our customized scheduler hook.

Bug: 345603555
Bug: 407947364

Change-Id: Ibf877dcda76da6a2a1924fcc98e6ec1b51997627
Signed-off-by: Wang Jianzheng <11134417@vivo.corp-partner.google.com>
(cherry picked from commit dbe0e69e89f5b0ad11368ecbe35572e87d49aac0)
Signed-off-by: ying zuxin <11154159@vivo.com>
This commit is contained in:
Wang Jianzheng
2024-06-07 12:05:09 +08:00
committed by 11154159 Vivo
parent d780e5ca2b
commit 66245eed58
3 changed files with 26 additions and 1 deletions
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block/holder.c
+2
View File
@@ -1,6 +1,7 @@
// SPDX-License-Identifier: GPL-2.0-only
#include <linux/blkdev.h>
#include <linux/slab.h>
#include <trace/hooks/blk.h>
struct bd_holder_disk {
struct list_head list;
@@ -109,6 +110,7 @@ int bd_link_disk_holder(struct block_device *bdev, struct gendisk *disk)
if (ret)
goto out_del_symlink;
list_add(&holder->list, &disk->slave_bdevs);
trace_android_vh_bd_link_disk_holder(bdev, disk);
mutex_unlock(&blk_holder_mutex);
return 0;
drivers/android/vendor_hooks.c
+2 -1
View File
@@ -68,7 +68,7 @@
#include <trace/hooks/compaction.h>
#include <trace/hooks/madvise.h>
#include <trace/events/android_vendor_lmk.h>
#include <trace/hooks/blk.h>
/*
* Export tracepoints that act as a bare tracehook (ie: have no trace event
@@ -448,3 +448,4 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_mm_kcompactd_cpu_online);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_direct_reclaim_begin);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_direct_reclaim_end);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_do_read_fault);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_bd_link_disk_holder);
include/trace/hooks/blk.h
+22
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@@ -0,0 +1,22 @@
/* SPDX-License-Identifier: GPL-2.0 */
#undef TRACE_SYSTEM
#define TRACE_SYSTEM blk
#undef TRACE_INCLUDE_PATH
#define TRACE_INCLUDE_PATH trace/hooks
#if !defined(_TRACE_HOOK_BLK_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_HOOK_BLK_H
#include <trace/hooks/vendor_hooks.h>
struct block_device;
struct gendisk;
DECLARE_HOOK(android_vh_bd_link_disk_holder,
TP_PROTO(struct block_device *bdev, struct gendisk *disk),
TP_ARGS(bdev, disk));
#endif /* _TRACE_HOOK_BLK_H */
/* This part must be outside protection */
#include <trace/define_trace.h>