Commit 799ba82d authored by luca abeni's avatar luca abeni Committed by Ingo Molnar

sched/deadline: Use C bitfields for the state flags

Ask the compiler to use a single bit for storing true / false values,
instead of wasting the size of a whole int value.
Tested with gcc 5.4.0 on x86_64, and the compiler produces the expected
Assembly (similar to the Assembly code generated when explicitly accessing
the bits with bitmasks, "&" and "|").
Signed-off-by: default avatarluca abeni <luca.abeni@santannapisa.it>
Signed-off-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: default avatarDaniel Bristot de Oliveira <bristot@redhat.com>
Cc: Juri Lelli <juri.lelli@arm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1504778971-13573-5-git-send-email-luca.abeni@santannapisa.itSigned-off-by: default avatarIngo Molnar <mingo@kernel.org>
parent 8c0944ce
...@@ -474,10 +474,10 @@ struct sched_dl_entity { ...@@ -474,10 +474,10 @@ struct sched_dl_entity {
* conditions between the inactive timer handler and the wakeup * conditions between the inactive timer handler and the wakeup
* code. * code.
*/ */
int dl_throttled; int dl_throttled : 1;
int dl_boosted; int dl_boosted : 1;
int dl_yielded; int dl_yielded : 1;
int dl_non_contending; int dl_non_contending : 1;
/* /*
* Bandwidth enforcement timer. Each -deadline task has its * Bandwidth enforcement timer. Each -deadline task has its
......
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