From dc2884315d492b1eefd9d32443c1f0aa3c0a991e Mon Sep 17 00:00:00 2001
From: Anton Habegger <anton.habegger@gmail.com>
Date: Thu, 22 Jan 2015 22:29:10 +0100
Subject: ubifs: Import atomic_long operations from Linux

This commit is a preperation for a subsequent UBIFS commit
which needs atomic_long operations.

Therefor "include/asm-generic/atomic-long.h" is imported
from 1860e37 Linux 3.15

Signed-off-by: Anton Habegger <anton.habegger@gmail.com>
---
 fs/ubifs/ubifs.c |  6 ++++++
 fs/ubifs/ubifs.h | 12 ++----------
 2 files changed, 8 insertions(+), 10 deletions(-)

(limited to 'fs/ubifs')

diff --git a/fs/ubifs/ubifs.c b/fs/ubifs/ubifs.c
index 49e6f469ca..6dd617426a 100644
--- a/fs/ubifs/ubifs.c
+++ b/fs/ubifs/ubifs.c
@@ -150,6 +150,12 @@ static inline int crypto_comp_decompress(struct crypto_comp *tfm,
 
 	return 0;
 }
+
+/* from shrinker.c */
+
+/* Global clean znode counter (for all mounted UBIFS instances) */
+atomic_long_t ubifs_clean_zn_cnt;
+
 #endif
 
 /**
diff --git a/fs/ubifs/ubifs.h b/fs/ubifs/ubifs.h
index c12026147f..a51b2376d2 100644
--- a/fs/ubifs/ubifs.h
+++ b/fs/ubifs/ubifs.h
@@ -31,6 +31,8 @@
 #include <linux/backing-dev.h>
 #include "ubifs-media.h"
 #else
+#include <asm/atomic.h>
+#include <asm-generic/atomic-long.h>
 #include <ubi_uboot.h>
 
 #include <linux/ctype.h>
@@ -63,16 +65,6 @@ struct page {
 
 void iput(struct inode *inode);
 
-/*
- * The atomic operations are used for budgeting etc which is not
- * needed for the read-only U-Boot implementation:
- */
-#define atomic_long_inc(a)
-#define atomic_long_dec(a)
-#define	atomic_long_sub(a, b)
-
-typedef unsigned long atomic_long_t;
-
 /* linux/include/time.h */
 #define NSEC_PER_SEC	1000000000L
 #define get_seconds()	0
-- 
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