The patch titled
Subject: mm/compaction: use DEVICE_ATTR_WO macro
has been added to the -mm tree. Its filename is
mm-compaction-use-device_attr_wo-macro.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/mm-compaction-use-device_attr_wo-macro.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/mm-compaction-use-device_attr_wo-macro.patch
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------------------------------------------------------
From: YueHaibing <yuehaibing@xxxxxxxxxx>
Subject: mm/compaction: use DEVICE_ATTR_WO macro
Use DEVICE_ATTR_WO helper instead of plain DEVICE_ATTR, which makes the
code a bit shorter and easier to read.
Link: https://lkml.kernel.org/r/20210523064521.32912-1-yuehaibing@xxxxxxxxxx
Signed-off-by: YueHaibing <yuehaibing@xxxxxxxxxx>
Reviewed-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/compaction.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
--- a/mm/compaction.c~mm-compaction-use-device_attr_wo-macro
+++ a/mm/compaction.c
@@ -2722,9 +2722,9 @@ int sysctl_compaction_handler(struct ctl
}
#if defined(CONFIG_SYSFS) && defined(CONFIG_NUMA)
-static ssize_t sysfs_compact_node(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t count)
+static ssize_t compact_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
{
int nid = dev->id;
@@ -2737,7 +2737,7 @@ static ssize_t sysfs_compact_node(struct
return count;
}
-static DEVICE_ATTR(compact, 0200, NULL, sysfs_compact_node);
+static DEVICE_ATTR_WO(compact);
int compaction_register_node(struct node *node)
{
_
Patches currently in -mm which might be from yuehaibing@xxxxxxxxxx are
mm-dmapool-use-device_attr_ro-macro.patch
mm-compaction-use-device_attr_wo-macro.patch
