diff options
author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2008-05-09 23:24:09 +0100 |
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committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2008-05-09 23:24:09 +0100 |
commit | 1f2ee6496b1f71e9d5aa2448745e65fbafdc3bd5 (patch) | |
tree | 3f143311afca5e316afd06c2fc4f7d73b19cdcf0 /include/linux/ioprio.h | |
parent | 5bf6c6e30d8b71d092e8830208e182d84b907fcd (diff) | |
parent | da109897a142dd017172c0ce7abf0be8646f7109 (diff) |
Merge branch 'for-rmk' of git://git.kernel.org/pub/scm/linux/kernel/git/nico/orion into fixes
Diffstat (limited to 'include/linux/ioprio.h')
-rw-r--r-- | include/linux/ioprio.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/include/linux/ioprio.h b/include/linux/ioprio.h index 2a3bb1bb743..f98a656b17e 100644 --- a/include/linux/ioprio.h +++ b/include/linux/ioprio.h @@ -68,6 +68,20 @@ static inline int task_nice_ioprio(struct task_struct *task) } /* + * This is for the case where the task hasn't asked for a specific IO class. + * Check for idle and rt task process, and return appropriate IO class. + */ +static inline int task_nice_ioclass(struct task_struct *task) +{ + if (task->policy == SCHED_IDLE) + return IOPRIO_CLASS_IDLE; + else if (task->policy == SCHED_FIFO || task->policy == SCHED_RR) + return IOPRIO_CLASS_RT; + else + return IOPRIO_CLASS_BE; +} + +/* * For inheritance, return the highest of the two given priorities */ extern int ioprio_best(unsigned short aprio, unsigned short bprio); |