From: Alexey Dobriyan oomkilladj is int, but values which can be assigned to it are -17, [-16, 15], thus fitting into s8. While patch itself doesn't help in making task_struct smaller, because of natural alignment of ->link_count, it will make picture clearer wrt futher task_struct reduction patches. My plan is to move ->fpu_counter and ->oomkilladj after ->ioprio filling hole on i386 and x86_64. But that's for later, because bloated distro configs need looking at as well. Signed-off-by: Alexey Dobriyan Signed-off-by: Andrew Morton --- include/linux/sched.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff -puN include/linux/sched.h~shrink-struct-task_structoomkilladj include/linux/sched.h --- a/include/linux/sched.h~shrink-struct-task_structoomkilladj +++ a/include/linux/sched.h @@ -979,7 +979,7 @@ struct task_struct { * a short time */ unsigned char fpu_counter; - int oomkilladj; /* OOM kill score adjustment (bit shift). */ + s8 oomkilladj; /* OOM kill score adjustment (bit shift). */ char comm[TASK_COMM_LEN]; /* executable name excluding path - access with [gs]et_task_comm (which lock it with task_lock()) _