Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=41ca28ab2abd76dc203e2c3a7cd609607cb927c3
Commit: 41ca28ab2abd76dc203e2c3a7cd609607cb927c3
Parent: 775b64d2b6ca37697de925f70799c710aab5849a
Author: Evgeniy Polyakov <[EMAIL PROTECTED]>
AuthorDate: Mon Dec 10 23:03:43 2007 +0300
Committer: Greg Kroah-Hartman <[EMAIL PROTECTED]>
CommitDate: Thu Jan 24 20:40:05 2008 -0800
kref: add kref_set()
This adds kref_set() to the kref api for future use by people who really
know what they are doing with krefs...
From: Evgeniy Polyakov <[EMAIL PROTECTED]>
Cc: Kay Sievers <[EMAIL PROTECTED]>
Signed-off-by: Greg Kroah-Hartman <[EMAIL PROTECTED]>
---
include/linux/kref.h | 1 +
lib/kref.c | 15 +++++++++++++--
2 files changed, 14 insertions(+), 2 deletions(-)
diff --git a/include/linux/kref.h b/include/linux/kref.h
index 6fee353..5d18563 100644
--- a/include/linux/kref.h
+++ b/include/linux/kref.h
@@ -24,6 +24,7 @@ struct kref {
atomic_t refcount;
};
+void kref_set(struct kref *kref, int num);
void kref_init(struct kref *kref);
void kref_get(struct kref *kref);
int kref_put(struct kref *kref, void (*release) (struct kref *kref));
diff --git a/lib/kref.c b/lib/kref.c
index a6dc3ec..9ecd6e8 100644
--- a/lib/kref.c
+++ b/lib/kref.c
@@ -15,13 +15,23 @@
#include <linux/module.h>
/**
+ * kref_set - initialize object and set refcount to requested number.
+ * @kref: object in question.
+ * @num: initial reference counter
+ */
+void kref_set(struct kref *kref, int num)
+{
+ atomic_set(&kref->refcount, num);
+ smp_mb();
+}
+
+/**
* kref_init - initialize object.
* @kref: object in question.
*/
void kref_init(struct kref *kref)
{
- atomic_set(&kref->refcount,1);
- smp_mb();
+ kref_set(kref, 1);
}
/**
@@ -61,6 +71,7 @@ int kref_put(struct kref *kref, void (*release)(struct kref
*kref))
return 0;
}
+EXPORT_SYMBOL(kref_set);
EXPORT_SYMBOL(kref_init);
EXPORT_SYMBOL(kref_get);
EXPORT_SYMBOL(kref_put);
-
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