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Revert "ANDROID: vendor_hooks: Add a hook for task tagging"

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This reverts commit cadbca1c5e.

The hook android_vh_set_task_comm is not used by any vendor, so remove
it to help with merge issues with future LTS releases.

If this is needed by any real user, it can easily be reverted to add it
back and then the symbol should be added to the abi list at the same
time to prevent it from being removed again later.

Bug: 203756332
Bug: 189352151
Cc: ted.lin <ted.lin@oneplus.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I005ad1c1a55f8646e5bbccd142827eed553411f6
This commit is contained in:
Greg Kroah-Hartman
2021-10-21 13:29:34 +02:00
parent d8fe0b1fc2
commit 4b3396046c
3 changed files with 0 additions and 7 deletions
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1
drivers/android/vendor_hooks.c
View File

@@ -325,7 +325,6 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_save_vmalloc_stack);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_show_stack_hash);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_save_track_hash);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_vmpressure);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_set_task_comm);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_cpufreq_acct_update_power);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_typec_tcpm_log);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_media_device_setup_link);

2
fs/exec.c
View File

@@ -73,7 +73,6 @@
#include "internal.h"
#include <trace/events/sched.h>
#include <trace/hooks/sched.h>
EXPORT_TRACEPOINT_SYMBOL_GPL(task_rename);
@@ -1230,7 +1229,6 @@ void __set_task_comm(struct task_struct *tsk, const char *buf, bool exec)
strlcpy(tsk->comm, buf, sizeof(tsk->comm));
task_unlock(tsk);
perf_event_comm(tsk, exec);
trace_android_vh_set_task_comm(tsk);
}
/*

4
include/trace/hooks/sched.h
View File

@@ -363,10 +363,6 @@ DECLARE_HOOK(android_vh_dup_task_struct,
TP_PROTO(struct task_struct *tsk, struct task_struct *orig),
TP_ARGS(tsk, orig));
DECLARE_HOOK(android_vh_set_task_comm,
TP_PROTO(struct task_struct *p),
TP_ARGS(p));
DECLARE_RESTRICTED_HOOK(android_rvh_find_new_ilb,
TP_PROTO(struct cpumask *nohz_idle_cpus_mask, int *ilb),
TP_ARGS(nohz_idle_cpus_mask, ilb), 1);