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authorOliver Hartkopp <socketcan@hartkopp.net>2021-07-14 22:56:55 +0300
committerJens Axboe <axboe@kernel.dk>2021-08-02 22:37:27 +0300
commit06447ae5e33bfbc5a777cc06d9854a31f3912833 (patch)
tree2ee27a71278f67f46525a2468d02aab48d7488c8 /include/linux/ioprio.h
parentc500bee1c5b2f1d59b1081ac879d73268ab0ff17 (diff)
downloadlinux-06447ae5e33bfbc5a777cc06d9854a31f3912833.tar.xz
ioprio: move user space relevant ioprio bits to UAPI includes
systemd added a modified copy of include/linux/ioprio.h into its code to get the relevant content definitions for the exposed ioprio_[get|set] system calls. Move the user space relevant ioprio bits to the UAPI includes to be able to use the ioprio_[get|set] syscalls as intended. Cc: Kay Sievers <kay@vrfy.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Jens Axboe <axboe@kernel.dk> Cc: linux-block@vger.kernel.org Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net> Link: https://lore.kernel.org/r/20210714195655.181943-1-socketcan@hartkopp.net Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/linux/ioprio.h')
-rw-r--r--include/linux/ioprio.h41
1 files changed, 1 insertions, 40 deletions
diff --git a/include/linux/ioprio.h b/include/linux/ioprio.h
index e9bfe6972aed..ef9ad4fb245f 100644
--- a/include/linux/ioprio.h
+++ b/include/linux/ioprio.h
@@ -6,46 +6,7 @@
#include <linux/sched/rt.h>
#include <linux/iocontext.h>
-/*
- * Gives us 8 prio classes with 13-bits of data for each class
- */
-#define IOPRIO_CLASS_SHIFT (13)
-#define IOPRIO_PRIO_MASK ((1UL << IOPRIO_CLASS_SHIFT) - 1)
-
-#define IOPRIO_PRIO_CLASS(mask) ((mask) >> IOPRIO_CLASS_SHIFT)
-#define IOPRIO_PRIO_DATA(mask) ((mask) & IOPRIO_PRIO_MASK)
-#define IOPRIO_PRIO_VALUE(class, data) (((class) << IOPRIO_CLASS_SHIFT) | data)
-
-#define ioprio_valid(mask) (IOPRIO_PRIO_CLASS((mask)) != IOPRIO_CLASS_NONE)
-
-/*
- * These are the io priority groups as implemented by CFQ. RT is the realtime
- * class, it always gets premium service. BE is the best-effort scheduling
- * class, the default for any process. IDLE is the idle scheduling class, it
- * is only served when no one else is using the disk.
- */
-enum {
- IOPRIO_CLASS_NONE,
- IOPRIO_CLASS_RT,
- IOPRIO_CLASS_BE,
- IOPRIO_CLASS_IDLE,
-};
-
-/*
- * 8 best effort priority levels are supported
- */
-#define IOPRIO_BE_NR (8)
-
-enum {
- IOPRIO_WHO_PROCESS = 1,
- IOPRIO_WHO_PGRP,
- IOPRIO_WHO_USER,
-};
-
-/*
- * Fallback BE priority
- */
-#define IOPRIO_NORM (4)
+#include <uapi/linux/ioprio.h>
/*
* if process has set io priority explicitly, use that. if not, convert