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Commit e980cf0f authored by Lingutla Chandrasekhar's avatar Lingutla Chandrasekhar
Browse files

sched: Improve the scheduler 



This change is for general scheduler improvements.

Change-Id: I780f52ebc3cb69ee2c497d2d2f8e8fddd789421d
Signed-off-by: default avatarLingutla Chandrasekhar <clingutla@codeaurora.org>
parent 52c9eb46

kernel/sched/core.c

+10 −3
Original line number Diff line number Diff line
@@ -5039,6 +5039,7 @@ unsigned int sched_lib_mask_force; 
bool is_sched_lib_based_app(pid_t pid)

{

	const char *name = NULL;

	char *lib_list, *libname;

	struct vm_area_struct *vma;

	char path_buf[LIB_PATH_LENGTH];

	bool found = false;
@@ -5048,11 +5049,14 @@ bool is_sched_lib_based_app(pid_t pid) 
	if (strnlen(sched_lib_name, LIB_PATH_LENGTH) == 0)

		return false;



	lib_list = kstrdup(sched_lib_name, GFP_KERNEL);



	rcu_read_lock();



	p = find_process_by_pid(pid);

	if (!p) {

		rcu_read_unlock();

		kfree(lib_list);

		return false;

	}
@@ -5072,19 +5076,22 @@ bool is_sched_lib_based_app(pid_t pid) 
			if (IS_ERR(name))

				goto release_sem;



			if (strnstr(name, sched_lib_name,

			while ((libname = strsep(&lib_list, ","))) {

				if (strnstr(name, libname,

					strnlen(name, LIB_PATH_LENGTH))) {

					found = true;

					break;

				}

			}

		}

	}



release_sem:

	up_read(&mm->mmap_sem);

	mmput(mm);

put_task_struct:

	put_task_struct(p);

	kfree(lib_list);

	return found;

}