lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

sched: remove ARCH specific fpu_counter from task_struct

Browse Source 
fpu_counter in task_struct was used only by sh/x86.  Both of these now
carry it in ARCH specific thread_struct, hence this can now be removed
from generic task_struct, shrinking it slightly for other arches.

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Paul Mundt <paul.mundt@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Vineet Gupta
2013-11-12 15:08:47 -08:00
committed by Linus Torvalds
parent c375f15a43
commit 27f69e68a5
1 changed files with 0 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
include/linux/sched.h
View File

@@ -1062,15 +1062,6 @@ struct task_struct {
struct hlist_head preempt_notifiers; struct hlist_head preempt_notifiers;
#endif #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;
#ifdef CONFIG_BLK_DEV_IO_TRACE #ifdef CONFIG_BLK_DEV_IO_TRACE
unsigned int btrace_seq; unsigned int btrace_seq;
#endif #endif