treewide: Add __GFP_NOWARN to k.alloc calls with v.alloc fallbacks

Don't emit OOM warnings when k.alloc calls fail when
there there is a v.alloc immediately afterwards.

Converted a kmalloc/vmalloc with memset to kzalloc/vzalloc.

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

9 files changed, 15 insertions, 13 deletions

diff --git a/drivers/block/drbd/drbd_bitmap.c b/drivers/block/drbd/drbd_bitmap.c
index 64fbb8385cdc..b12c11ec4bd2 100644
--- a/drivers/block/drbd/drbd_bitmap.c
+++ b/drivers/block/drbd/drbd_bitmap.c
@@ -393,7 +393,7 @@ static struct page **bm_realloc_pages(struct drbd_bitmap *b, unsigned long want)
          * we must not block on IO to ourselves.
          * Context is receiver thread or dmsetup. */
         bytes = sizeof(struct page *)*want;
-        new_pages = kzalloc(bytes, GFP_NOIO);
+        new_pages = kzalloc(bytes, GFP_NOIO | __GFP_NOWARN);
         if (!new_pages) {
                 new_pages = __vmalloc(bytes,
                                 GFP_NOIO | __GFP_HIGHMEM | __GFP_ZERO,
diff --git a/drivers/infiniband/hw/ehca/ipz_pt_fn.c b/drivers/infiniband/hw/ehca/ipz_pt_fn.c
index 62c71fadb4d9..8d594517cd29 100644
--- a/drivers/infiniband/hw/ehca/ipz_pt_fn.c
+++ b/drivers/infiniband/hw/ehca/ipz_pt_fn.c
@@ -222,7 +222,8 @@ int ipz_queue_ctor(struct ehca_pd *pd, struct ipz_queue *queue,
         queue->small_page = NULL;
 
         /* allocate queue page pointers */
-        queue->queue_pages = kzalloc(nr_of_pages * sizeof(void *), GFP_KERNEL);
+        queue->queue_pages = kzalloc(nr_of_pages * sizeof(void *),
+                                     GFP_KERNEL | __GFP_NOWARN);
         if (!queue->queue_pages) {
                 queue->queue_pages = vzalloc(nr_of_pages * sizeof(void *));
                 if (!queue->queue_pages) {
diff --git a/drivers/net/ethernet/chelsio/cxgb3/cxgb3_offload.c b/drivers/net/ethernet/chelsio/cxgb3/cxgb3_offload.c
index 4058b856eb71..76ae09999b5b 100644
--- a/drivers/net/ethernet/chelsio/cxgb3/cxgb3_offload.c
+++ b/drivers/net/ethernet/chelsio/cxgb3/cxgb3_offload.c
@@ -1157,7 +1157,7 @@ static void cxgb_redirect(struct dst_entry *old, struct dst_entry *new,
  */
 void *cxgb_alloc_mem(unsigned long size)
 {
-        void *p = kzalloc(size, GFP_KERNEL);
+        void *p = kzalloc(size, GFP_KERNEL | __GFP_NOWARN);
 
         if (!p)
                 p = vzalloc(size);
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
index 5a3256b083f2..5d5f2685ee2b 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
@@ -1133,7 +1133,7 @@ out:	release_firmware(fw);
  */
 void *t4_alloc_mem(size_t size)
 {
-        void *p = kzalloc(size, GFP_KERNEL);
+        void *p = kzalloc(size, GFP_KERNEL | __GFP_NOWARN);
 
         if (!p)
                 p = vzalloc(size);
diff --git a/drivers/scsi/cxgbi/libcxgbi.h b/drivers/scsi/cxgbi/libcxgbi.h
index 80fa99b3d384..8135f04671af 100644
--- a/drivers/scsi/cxgbi/libcxgbi.h
+++ b/drivers/scsi/cxgbi/libcxgbi.h
@@ -658,11 +658,11 @@ static inline u32 cxgbi_tag_nonrsvd_bits(struct cxgbi_tag_format *tformat,
 static inline void *cxgbi_alloc_big_mem(unsigned int size,
                                         gfp_t gfp)
 {
-        void *p = kmalloc(size, gfp);
+        void *p = kzalloc(size, gfp | __GFP_NOWARN);
+
         if (!p)
-                p = vmalloc(size);
-        if (p)
-                memset(p, 0, size);
+                p = vzalloc(size);
+
         return p;
 }
 
diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c
index d3f3b43cae0b..2e14fd89a8b4 100644
--- a/fs/btrfs/send.c
+++ b/fs/btrfs/send.c
@@ -219,7 +219,7 @@ static int fs_path_ensure_buf(struct fs_path *p, int len)
         len = PAGE_ALIGN(len);
 
         if (p->buf == p->inline_buf) {
-                tmp_buf = kmalloc(len, GFP_NOFS);
+                tmp_buf = kmalloc(len, GFP_NOFS | __GFP_NOWARN);
                 if (!tmp_buf) {
                         tmp_buf = vmalloc(len);
                         if (!tmp_buf)
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index bca26f34edf4..ffdfe385b029 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -162,7 +162,7 @@ void *ext4_kvmalloc(size_t size, gfp_t flags)
 {
         void *ret;
 
-        ret = kmalloc(size, flags);
+        ret = kmalloc(size, flags | __GFP_NOWARN);
         if (!ret)
                 ret = __vmalloc(size, flags, PAGE_KERNEL);
         return ret;
@@ -172,7 +172,7 @@ void *ext4_kvzalloc(size_t size, gfp_t flags)
 {
         void *ret;
 
-        ret = kzalloc(size, flags);
+        ret = kzalloc(size, flags | __GFP_NOWARN);
         if (!ret)
                 ret = __vmalloc(size, flags | __GFP_ZERO, PAGE_KERNEL);
         return ret;
diff --git a/fs/gfs2/dir.c b/fs/gfs2/dir.c
index 0cb4c1557f20..2e5fc268d324 100644
--- a/fs/gfs2/dir.c
+++ b/fs/gfs2/dir.c
@@ -1859,7 +1859,7 @@ static int leaf_dealloc(struct gfs2_inode *dip, u32 index, u32 len,
 
         memset(&rlist, 0, sizeof(struct gfs2_rgrp_list));
 
-        ht = kzalloc(size, GFP_NOFS);
+        ht = kzalloc(size, GFP_NOFS | __GFP_NOWARN);
         if (ht == NULL)
                 ht = vzalloc(size);
         if (!ht)
diff --git a/net/sched/sch_choke.c b/net/sched/sch_choke.c
index ef53ab8d0aae..ddd73cb2d7ba 100644
--- a/net/sched/sch_choke.c
+++ b/net/sched/sch_choke.c
@@ -438,7 +438,8 @@ static int choke_change(struct Qdisc *sch, struct nlattr *opt)
         if (mask != q->tab_mask) {
                 struct sk_buff **ntab;
 
-                ntab = kcalloc(mask + 1, sizeof(struct sk_buff *), GFP_KERNEL);
+                ntab = kcalloc(mask + 1, sizeof(struct sk_buff *),
+                               GFP_KERNEL | __GFP_NOWARN);
                 if (!ntab)
                         ntab = vzalloc((mask + 1) * sizeof(struct sk_buff *));
                 if (!ntab)