Merge tag 'v3.15-rc1' into patchwork

Linux 3.15-rc1

* tag 'v3.15-rc1': (12180 commits)
  Linux 3.15-rc1
  mm: Initialize error in shmem_file_aio_read()
  cifs: Use min_t() when comparing "size_t" and "unsigned long"
  sym53c8xx_2: Set DID_REQUEUE return code when aborting squeue
  powerpc: Don't try to set LPCR unless we're in hypervisor mode
  futex: update documentation for ordering guarantees
  ceph: fix pr_fmt() redefinition
  vti: don't allow to add the same tunnel twice
  gre: don't allow to add the same tunnel twice
  drivers: net: xen-netfront: fix array initialization bug
  missing bits of "splice: fix racy pipe->buffers uses"
  cifs: fix the race in cifs_writev()
  ceph_sync_{,direct_}write: fix an oops on ceph_osdc_new_request() failure
  pktgen: be friendly to LLTX devices
  r8152: check RTL8152_UNPLUG
  net: sun4i-emac: add promiscuous support
  net/apne: replace IS_ERR and PTR_ERR with PTR_ERR_OR_ZERO
  blackfin: cleanup board files
  bf609: clock: drop unused clock bit set/clear functions
  Blackfin: bf537: rename "CONFIG_ADT75"
  ...

1 files changed, 14 insertions, 20 deletions

diff --git a/lib/idr.c b/lib/idr.c
index bfe4db4e165f..2642fa8e424d 100644
--- a/lib/idr.c
+++ b/lib/idr.c
@@ -196,7 +196,7 @@ static void idr_mark_full(struct idr_layer **pa, int id)
 	}
 }
 
-int __idr_pre_get(struct idr *idp, gfp_t gfp_mask)
+static int __idr_pre_get(struct idr *idp, gfp_t gfp_mask)
 {
 	while (idp->id_free_cnt < MAX_IDR_FREE) {
 		struct idr_layer *new;
@@ -207,7 +207,6 @@ int __idr_pre_get(struct idr *idp, gfp_t gfp_mask)
 	}
 	return 1;
 }
-EXPORT_SYMBOL(__idr_pre_get);
 
 /**
  * sub_alloc - try to allocate an id without growing the tree depth
@@ -374,20 +373,6 @@ static void idr_fill_slot(struct idr *idr, void *ptr, int id,
 	idr_mark_full(pa, id);
 }
 
-int __idr_get_new_above(struct idr *idp, void *ptr, int starting_id, int *id)
-{
-	struct idr_layer *pa[MAX_IDR_LEVEL + 1];
-	int rv;
-
-	rv = idr_get_empty_slot(idp, starting_id, pa, 0, idp);
-	if (rv < 0)
-		return rv == -ENOMEM ? -EAGAIN : rv;
-
-	idr_fill_slot(idp, ptr, rv, pa);
-	*id = rv;
-	return 0;
-}
-EXPORT_SYMBOL(__idr_get_new_above);
 
 /**
  * idr_preload - preload for idr_alloc()
@@ -548,7 +533,7 @@ static void sub_remove(struct idr *idp, int shift, int id)
 	n = id & IDR_MASK;
 	if (likely(p != NULL && test_bit(n, p->bitmap))) {
 		__clear_bit(n, p->bitmap);
-		rcu_assign_pointer(p->ary[n], NULL);
+		RCU_INIT_POINTER(p->ary[n], NULL);
 		to_free = NULL;
 		while(*paa && ! --((**paa)->count)){
 			if (to_free)
@@ -607,7 +592,7 @@ void idr_remove(struct idr *idp, int id)
 }
 EXPORT_SYMBOL(idr_remove);
 
-void __idr_remove_all(struct idr *idp)
+static void __idr_remove_all(struct idr *idp)
 {
 	int n, id, max;
 	int bt_mask;
@@ -617,7 +602,7 @@ void __idr_remove_all(struct idr *idp)
 
 	n = idp->layers * IDR_BITS;
 	p = idp->top;
-	rcu_assign_pointer(idp->top, NULL);
+	RCU_INIT_POINTER(idp->top, NULL);
 	max = idr_max(idp->layers);
 
 	id = 0;
@@ -640,7 +625,6 @@ void __idr_remove_all(struct idr *idp)
 	}
 	idp->layers = 0;
 }
-EXPORT_SYMBOL(__idr_remove_all);
 
 /**
  * idr_destroy - release all cached layers within an idr tree
@@ -869,6 +853,16 @@ void idr_init(struct idr *idp)
 }
 EXPORT_SYMBOL(idr_init);
 
+static int idr_has_entry(int id, void *p, void *data)
+{
+	return 1;
+}
+
+bool idr_is_empty(struct idr *idp)
+{
+	return !idr_for_each(idp, idr_has_entry, NULL);
+}
+EXPORT_SYMBOL(idr_is_empty);
 
 /**
  * DOC: IDA description