From 102a0743326a03cd1a1202ceda21e175b7d3575c Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 20 Feb 2024 01:20:52 +0000
Subject: [PATCH] add new system file
---
kernel/include/linux/ioprio.h | 13 +++++++++++++
1 files changed, 13 insertions(+), 0 deletions(-)
diff --git a/kernel/include/linux/ioprio.h b/kernel/include/linux/ioprio.h
index 9e30ed6..e9bfe69 100644
--- a/kernel/include/linux/ioprio.h
+++ b/kernel/include/linux/ioprio.h
@@ -71,6 +71,19 @@
}
/*
+ * If the calling process has set an I/O priority, use that. Otherwise, return
+ * the default I/O priority.
+ */
+static inline int get_current_ioprio(void)
+{
+ struct io_context *ioc = current->io_context;
+
+ if (ioc)
+ return ioc->ioprio;
+ return IOPRIO_PRIO_VALUE(IOPRIO_CLASS_NONE, 0);
+}
+
+/*
* For inheritance, return the highest of the two given priorities
*/
extern int ioprio_best(unsigned short aprio, unsigned short bprio);
--
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