Merge branch 'akpm' (patches from Andrew)

Merge updates from Andrew Morton:

 - fsnotify fix

 - poll() timeout fix

 - a few scripts/ tweaks

 - debugobjects updates

 - the (small) ocfs2 queue

 - Minor fixes to kernel/padata.c

 - Maybe half of the MM queue

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (117 commits)
  mm, page_alloc: restore the original nodemask if the fast path allocation failed
  mm, page_alloc: uninline the bad page part of check_new_page()
  mm, page_alloc: don't duplicate code in free_pcp_prepare
  mm, page_alloc: defer debugging checks of pages allocated from the PCP
  mm, page_alloc: defer debugging checks of freed pages until a PCP drain
  cpuset: use static key better and convert to new API
  mm, page_alloc: inline pageblock lookup in page free fast paths
  mm, page_alloc: remove unnecessary variable from free_pcppages_bulk
  mm, page_alloc: pull out side effects from free_pages_check
  mm, page_alloc: un-inline the bad part of free_pages_check
  mm, page_alloc: check multiple page fields with a single branch
  mm, page_alloc: remove field from alloc_context
  mm, page_alloc: avoid looking up the first zone in a zonelist twice
  mm, page_alloc: shortcut watermark checks for order-0 pages
  mm, page_alloc: reduce cost of fair zone allocation policy retry
  mm, page_alloc: shorten the page allocator fast path
  mm, page_alloc: check once if a zone has isolated pageblocks
  mm, page_alloc: move __GFP_HARDWALL modifications out of the fastpath
  mm, page_alloc: simplify last cpupid reset
  mm, page_alloc: remove unnecessary initialisation from __alloc_pages_nodemask()
  ...

8 files changed, 19 insertions, 19 deletions

diff --git a/drivers/block/aoe/aoecmd.c b/drivers/block/aoe/aoecmd.c
index 437b3a8..d597e43 100644
--- a/drivers/block/aoe/aoecmd.c
+++ b/drivers/block/aoe/aoecmd.c
@@ -861,7 +861,7 @@ rqbiocnt(struct request *r)
  * discussion.
  *
  * We cannot use get_page in the workaround, because it insists on a
- * positive page count as a precondition.  So we use _count directly.
+ * positive page count as a precondition.  So we use _refcount directly.
  */
 static void
 bio_pageinc(struct bio *bio)
diff --git a/drivers/hwtracing/intel_th/msu.c b/drivers/hwtracing/intel_th/msu.c
index d9d6022..d220914 100644
--- a/drivers/hwtracing/intel_th/msu.c
+++ b/drivers/hwtracing/intel_th/msu.c
@@ -1164,7 +1164,7 @@ static void msc_mmap_close(struct vm_area_struct *vma)
 	if (!atomic_dec_and_mutex_lock(&msc->mmap_count, &msc->buf_mutex))
 		return;
 
-	/* drop page _counts */
+	/* drop page _refcounts */
 	for (pg = 0; pg < msc->nr_pages; pg++) {
 		struct page *page = msc_buffer_get_page(msc, pg);
 
diff --git a/drivers/media/usb/dvb-usb/dib0700_core.c b/drivers/media/usb/dvb-usb/dib0700_core.c
index c16f999..bf890c3 100644
--- a/drivers/media/usb/dvb-usb/dib0700_core.c
+++ b/drivers/media/usb/dvb-usb/dib0700_core.c
@@ -517,7 +517,7 @@ int dib0700_download_firmware(struct usb_device *udev, const struct firmware *fw
 	if (nb_packet_buffer_size < 1)
 		nb_packet_buffer_size = 1;
 
-	/* get the fimware version */
+	/* get the firmware version */
 	usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
 				  REQUEST_GET_VERSION,
 				  USB_TYPE_VENDOR | USB_DIR_IN, 0, 0,
diff --git a/drivers/net/ethernet/cavium/thunder/nicvf_queues.c b/drivers/net/ethernet/cavium/thunder/nicvf_queues.c
index 06b819d..0ff8e60 100644
--- a/drivers/net/ethernet/cavium/thunder/nicvf_queues.c
+++ b/drivers/net/ethernet/cavium/thunder/nicvf_queues.c
@@ -23,7 +23,7 @@ static void nicvf_get_page(struct nicvf *nic)
 	if (!nic->rb_pageref || !nic->rb_page)
 		return;
 
-	atomic_add(nic->rb_pageref, &nic->rb_page->_count);
+	page_ref_add(nic->rb_page, nic->rb_pageref);
 	nic->rb_pageref = 0;
 }
 
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
index f345679..bd94770 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
@@ -433,8 +433,8 @@ static int mlx5e_alloc_rx_fragmented_mpwqe(struct mlx5e_rq *rq,
 	for (i = 0; i < MLX5_MPWRQ_PAGES_PER_WQE; i++) {
 		if (unlikely(mlx5e_alloc_and_map_page(rq, wi, i)))
 			goto err_unmap;
-		atomic_add(mlx5e_mpwqe_strides_per_page(rq),
-			   &wi->umr.dma_info[i].page->_count);
+		page_ref_add(wi->umr.dma_info[i].page,
+			     mlx5e_mpwqe_strides_per_page(rq));
 		wi->skbs_frags[i] = 0;
 	}
 
@@ -452,8 +452,8 @@ err_unmap:
 	while (--i >= 0) {
 		dma_unmap_page(rq->pdev, wi->umr.dma_info[i].addr, PAGE_SIZE,
 			       PCI_DMA_FROMDEVICE);
-		atomic_sub(mlx5e_mpwqe_strides_per_page(rq),
-			   &wi->umr.dma_info[i].page->_count);
+		page_ref_sub(wi->umr.dma_info[i].page,
+			     mlx5e_mpwqe_strides_per_page(rq));
 		put_page(wi->umr.dma_info[i].page);
 	}
 	dma_unmap_single(rq->pdev, wi->umr.mtt_addr, mtt_sz, PCI_DMA_TODEVICE);
@@ -477,8 +477,8 @@ void mlx5e_free_rx_fragmented_mpwqe(struct mlx5e_rq *rq,
 	for (i = 0; i < MLX5_MPWRQ_PAGES_PER_WQE; i++) {
 		dma_unmap_page(rq->pdev, wi->umr.dma_info[i].addr, PAGE_SIZE,
 			       PCI_DMA_FROMDEVICE);
-		atomic_sub(mlx5e_mpwqe_strides_per_page(rq) - wi->skbs_frags[i],
-			   &wi->umr.dma_info[i].page->_count);
+		page_ref_sub(wi->umr.dma_info[i].page,
+			mlx5e_mpwqe_strides_per_page(rq) - wi->skbs_frags[i]);
 		put_page(wi->umr.dma_info[i].page);
 	}
 	dma_unmap_single(rq->pdev, wi->umr.mtt_addr, mtt_sz, PCI_DMA_TODEVICE);
@@ -527,8 +527,8 @@ static int mlx5e_alloc_rx_linear_mpwqe(struct mlx5e_rq *rq,
 	 */
 	split_page(wi->dma_info.page, MLX5_MPWRQ_WQE_PAGE_ORDER);
 	for (i = 0; i < MLX5_MPWRQ_PAGES_PER_WQE; i++) {
-		atomic_add(mlx5e_mpwqe_strides_per_page(rq),
-			   &wi->dma_info.page[i]._count);
+		page_ref_add(&wi->dma_info.page[i],
+			     mlx5e_mpwqe_strides_per_page(rq));
 		wi->skbs_frags[i] = 0;
 	}
 
@@ -551,8 +551,8 @@ void mlx5e_free_rx_linear_mpwqe(struct mlx5e_rq *rq,
 	dma_unmap_page(rq->pdev, wi->dma_info.addr, rq->wqe_sz,
 		       PCI_DMA_FROMDEVICE);
 	for (i = 0; i < MLX5_MPWRQ_PAGES_PER_WQE; i++) {
-		atomic_sub(mlx5e_mpwqe_strides_per_page(rq) - wi->skbs_frags[i],
-			   &wi->dma_info.page[i]._count);
+		page_ref_sub(&wi->dma_info.page[i],
+			mlx5e_mpwqe_strides_per_page(rq) - wi->skbs_frags[i]);
 		put_page(&wi->dma_info.page[i]);
 	}
 }
diff --git a/drivers/net/ethernet/qlogic/qede/qede_main.c b/drivers/net/ethernet/qlogic/qede/qede_main.c
index 8114541..73dd525 100644
--- a/drivers/net/ethernet/qlogic/qede/qede_main.c
+++ b/drivers/net/ethernet/qlogic/qede/qede_main.c
@@ -920,7 +920,7 @@ static inline int qede_realloc_rx_buffer(struct qede_dev *edev,
 		 * network stack to take the ownership of the page
 		 * which can be recycled multiple times by the driver.
 		 */
-		atomic_inc(&curr_cons->data->_count);
+		page_ref_inc(curr_cons->data);
 		qede_reuse_page(edev, rxq, curr_cons);
 	}
 
@@ -1036,7 +1036,7 @@ static int qede_fill_frag_skb(struct qede_dev *edev,
 		/* Incr page ref count to reuse on allocation failure
 		 * so that it doesn't get freed while freeing SKB.
 		 */
-		atomic_inc(&current_bd->data->_count);
+		page_ref_inc(current_bd->data);
 		goto out;
 	}
 
@@ -1487,7 +1487,7 @@ static int qede_rx_int(struct qede_fastpath *fp, int budget)
 				 * freeing SKB.
 				 */
 
-				atomic_inc(&sw_rx_data->data->_count);
+				page_ref_inc(sw_rx_data->data);
 				rxq->rx_alloc_errors++;
 				qede_recycle_rx_bd_ring(rxq, edev,
 							fp_cqe->bd_num);
diff --git a/drivers/scsi/bfa/bfi.h b/drivers/scsi/bfa/bfi.h
index 97600dc..5f698d0 100644
--- a/drivers/scsi/bfa/bfi.h
+++ b/drivers/scsi/bfa/bfi.h
@@ -356,7 +356,7 @@ struct bfi_ioc_image_hdr_s {
 	u8	port0_mode;	/* device mode for port 0	*/
 	u8	port1_mode;	/* device mode for port 1	*/
 	u32	exec;		/* exec vector			*/
-	u32	bootenv;	/* fimware boot env		*/
+	u32	bootenv;	/* firmware boot env		*/
 	u32	rsvd_b[2];
 	struct bfi_ioc_fwver_s	fwver;
 	u32	md5sum[BFI_IOC_MD5SUM_SZ];
diff --git a/drivers/staging/comedi/drivers/daqboard2000.c b/drivers/staging/comedi/drivers/daqboard2000.c
index 57ab668..a536a15 100644
--- a/drivers/staging/comedi/drivers/daqboard2000.c
+++ b/drivers/staging/comedi/drivers/daqboard2000.c
@@ -26,7 +26,7 @@
  * Much of the functionality of this driver was determined from reading
  * the source code for the Windows driver.
  *
- * The FPGA on the board requires fimware, which is available from
+ * The FPGA on the board requires firmware, which is available from
  * http://www.comedi.org in the comedi_nonfree_firmware tarball.
  *
  * Configuration options: not applicable, uses PCI auto config