From 18796aa00243a594a2bd6733f1360aa38c3cd8f4 Mon Sep 17 00:00:00 2001 From: Alexey Dobriyan Date: Tue, 16 Oct 2007 23:30:26 -0700 Subject: [PATCH] task_struct: move ->fpu_counter and ->oomkilladj There is nice 2 byte hole after struct task_struct::ioprio field into which we can put two 1-byte fields: ->fpu_counter and ->oomkilladj. Signed-off-by: Alexey Dobriyan Acked-by: Arjan van de Ven Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/sched.h | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-) diff --git a/include/linux/sched.h b/include/linux/sched.h index 884699fa8c..774cb435c7 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -918,6 +918,16 @@ struct task_struct { #endif unsigned short ioprio; + /* + * fpu_counter contains the number of consecutive context switches + * that the FPU is used. If this is over a threshold, the lazy fpu + * saving becomes unlazy to save the trap. This is an unsigned char + * so that after 256 times the counter wraps and the behavior turns + * lazy again; this to deal with bursty apps that only use FPU for + * a short time + */ + unsigned char fpu_counter; + s8 oomkilladj; /* OOM kill score adjustment (bit shift). */ #ifdef CONFIG_BLK_DEV_IO_TRACE unsigned int btrace_seq; #endif @@ -1003,16 +1013,6 @@ struct task_struct { struct key *thread_keyring; /* keyring private to this thread */ unsigned char jit_keyring; /* default keyring to attach requested keys to */ #endif - /* - * fpu_counter contains the number of consecutive context switches - * that the FPU is used. If this is over a threshold, the lazy fpu - * saving becomes unlazy to save the trap. This is an unsigned char - * so that after 256 times the counter wraps and the behavior turns - * lazy again; this to deal with bursty apps that only use FPU for - * a short time - */ - unsigned char fpu_counter; - 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()) -- 2.11.4.GIT