staging: lustre: remove wrappers for two atomic functions

Just call them directly, like the rest of the kernel does.

Cc: Peng Tao <tao.peng@emc.com>
Cc: Andreas Dilger <andreas.dilger@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/lustre/include/linux/libcfs/linux/linux-prim.h

@@ -165,10 +165,4 @@ do {								 \
 #define cfs_waitq_wait_event_interruptible_timeout(wq, c, timeout, ret) \
 	ret = wait_event_interruptible_timeout(wq, c, timeout)
 
-/*
- * atomic
- */
-#define cfs_atomic_add_unless(atom, a, u)    atomic_add_unless(atom, a, u)
-#define cfs_atomic_cmpxchg(atom, old, nv)    atomic_cmpxchg(atom, old, nv)
-
 #endif

drivers/staging/lustre/lustre/llite/lproc_llite.c

@@ -419,7 +419,7 @@ static ssize_t ll_max_cached_mb_seq_write(struct file *file, const char *buffer,
 				break;
 
 			nv = ov > diff ? ov - diff : 0;
-			rc = cfs_atomic_cmpxchg(&cache->ccc_lru_left, ov, nv);
+			rc = atomic_cmpxchg(&cache->ccc_lru_left, ov, nv);
 			if (likely(ov == rc)) {
 				diff -= ov - nv;
 				nrpages += ov - nv;

drivers/staging/lustre/lustre/osc/osc_page.c

@@ -881,7 +881,7 @@ static int osc_lru_reserve(const struct lu_env *env, struct osc_object *obj,
 		return 0;
 
 	LASSERT(atomic_read(cli->cl_lru_left) >= 0);
-	while (!cfs_atomic_add_unless(cli->cl_lru_left, -1, 0)) {
+	while (!atomic_add_unless(cli->cl_lru_left, -1, 0)) {
 		int gen;
 
 		/* run out of LRU spaces, try to drop some by itself */