From a5969cabbb4660eab42b6ef0412cbbd1200cf14d Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Sat, 12 Oct 2024 07:10:09 +0000
Subject: [PATCH] 修改led为gpio
---
kernel/fs/xfs/xfs_sysfs.c | 79 ++++++++++++++++++++++++++++++++-------
1 files changed, 64 insertions(+), 15 deletions(-)
diff --git a/kernel/fs/xfs/xfs_sysfs.c b/kernel/fs/xfs/xfs_sysfs.c
index cd6a994..f1bc88f 100644
--- a/kernel/fs/xfs/xfs_sysfs.c
+++ b/kernel/fs/xfs/xfs_sysfs.c
@@ -10,9 +10,7 @@
#include "xfs_log_format.h"
#include "xfs_trans_resv.h"
#include "xfs_sysfs.h"
-#include "xfs_log.h"
#include "xfs_log_priv.h"
-#include "xfs_stats.h"
#include "xfs_mount.h"
struct xfs_sysfs_attr {
@@ -64,19 +62,6 @@
.show = xfs_sysfs_object_show,
.store = xfs_sysfs_object_store,
};
-
-/*
- * xfs_mount kobject. The mp kobject also serves as the per-mount parent object
- * that is identified by the fsname under sysfs.
- */
-
-static inline struct xfs_mount *
-to_mp(struct kobject *kobject)
-{
- struct xfs_kobj *kobj = to_kobj(kobject);
-
- return container_of(kobj, struct xfs_mount, m_kobj);
-}
static struct attribute *xfs_mp_attrs[] = {
NULL,
@@ -183,10 +168,74 @@
}
XFS_SYSFS_ATTR_RW(mount_delay);
+static ssize_t
+always_cow_store(
+ struct kobject *kobject,
+ const char *buf,
+ size_t count)
+{
+ ssize_t ret;
+
+ ret = kstrtobool(buf, &xfs_globals.always_cow);
+ if (ret < 0)
+ return ret;
+ return count;
+}
+
+static ssize_t
+always_cow_show(
+ struct kobject *kobject,
+ char *buf)
+{
+ return snprintf(buf, PAGE_SIZE, "%d\n", xfs_globals.always_cow);
+}
+XFS_SYSFS_ATTR_RW(always_cow);
+
+#ifdef DEBUG
+/*
+ * Override how many threads the parallel work queue is allowed to create.
+ * This has to be a debug-only global (instead of an errortag) because one of
+ * the main users of parallel workqueues is mount time quotacheck.
+ */
+STATIC ssize_t
+pwork_threads_store(
+ struct kobject *kobject,
+ const char *buf,
+ size_t count)
+{
+ int ret;
+ int val;
+
+ ret = kstrtoint(buf, 0, &val);
+ if (ret)
+ return ret;
+
+ if (val < -1 || val > num_possible_cpus())
+ return -EINVAL;
+
+ xfs_globals.pwork_threads = val;
+
+ return count;
+}
+
+STATIC ssize_t
+pwork_threads_show(
+ struct kobject *kobject,
+ char *buf)
+{
+ return snprintf(buf, PAGE_SIZE, "%d\n", xfs_globals.pwork_threads);
+}
+XFS_SYSFS_ATTR_RW(pwork_threads);
+#endif /* DEBUG */
+
static struct attribute *xfs_dbg_attrs[] = {
ATTR_LIST(bug_on_assert),
ATTR_LIST(log_recovery_delay),
ATTR_LIST(mount_delay),
+ ATTR_LIST(always_cow),
+#ifdef DEBUG
+ ATTR_LIST(pwork_threads),
+#endif
NULL,
};
--
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