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authorPeter Zijlstra <peterz@infradead.org>2016-11-14 17:12:23 +0100
committerGiuliano Procida <gprocida@google.com>2021-01-05 15:58:33 +0000
commit5594ad73f641fce6d73f8dccdf9ede23c913c156 (patch)
treea333c815f3825308b3a84b3b105229f29d2df6b7 /include/linux/kref.h
parent300d539b8e6e297ffd986afec63a88415eced57d (diff)
UPSTREAM: locking/atomic, kref: Add KREF_INIT()
Since we need to change the implementation, stop exposing internals. Provide KREF_INIT() to allow static initialization of struct kref. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org> Bug: 173789633 Change-Id: I5fa30eb173b15bcb5d291ccbb61294f28ba27ea9 (cherry picked from commit 1e24edca0557dba6486d39d3c24c288475432bcf) Signed-off-by: Giuliano Procida <gprocida@google.com>
Diffstat (limited to 'include/linux/kref.h')
-rw-r--r--include/linux/kref.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/kref.h b/include/linux/kref.h
index e2df6d397ff0..7c88d865f82f 100644
--- a/include/linux/kref.h
+++ b/include/linux/kref.h
@@ -24,6 +24,8 @@ struct kref {
atomic_t refcount;
};
+#define KREF_INIT(n) { .refcount = ATOMIC_INIT(n), }
+
/**
* kref_init - initialize object.
* @kref: object in question.