Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
sched_ext: Factor out scx_dsq_list_node cursor initialization into INIT_DSQ_LIST_CURSOR
Factor out scx_dsq_list_node cursor initialization into INIT_DSQ_LIST_CURSOR
macro in preparation for additional users.
Reviewed-by: Emil Tsalapatis <emil@etsalapatis.com>
Cc: Dan Schatzberg <schatzberg.dan@gmail.com>
Acked-by: Andrea Righi <arighi@nvidia.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
+9
-3
+7
include/linux/sched/ext.h
+7
include/linux/sched/ext.h
···
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u32 priv; /* can be used by iter cursor */
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};
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+
#define INIT_DSQ_LIST_CURSOR(__node, __flags, __priv) \
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+
(struct scx_dsq_list_node) { \
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.node = LIST_HEAD_INIT((__node).node), \
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.flags = SCX_DSQ_LNODE_ITER_CURSOR | (__flags), \
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+
.priv = (__priv), \
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+
}
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+
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/*
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* The following is embedded in task_struct and contains all fields necessary
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* for a task to be scheduled by SCX.
+2
-3
kernel/sched/ext.c
+2
-3
kernel/sched/ext.c
···
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if (!kit->dsq)
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return -ENOENT;
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-
INIT_LIST_HEAD(&kit->cursor.node);
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-
kit->cursor.flags = SCX_DSQ_LNODE_ITER_CURSOR | flags;
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-
kit->cursor.priv = READ_ONCE(kit->dsq->seq);
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+
kit->cursor = INIT_DSQ_LIST_CURSOR(kit->cursor, flags,
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+
READ_ONCE(kit->dsq->seq));
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return 0;
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}