Merge branch 'iomap-write' into linux-gfs2/for-next

Pull in the gfs2 iomap-write changes: Tweak the existing code to
properly support iomap write and eliminate an unnecessary special case
in gfs2_block_map.  Implement iomap write support for buffered and
direct I/O.  Simplify some of the existing code and eliminate code that
is no longer used:

  gfs2: Remove gfs2_write_{begin,end}
  gfs2: iomap direct I/O support
  gfs2: gfs2_extent_length cleanup
  gfs2: iomap buffered write support
  gfs2: Further iomap cleanups

This is based on the following changes on the xfs 'iomap-4.19-merge'
branch:

  iomap: add private pointer to struct iomap
  iomap: add a page_done callback
  iomap: generic inline data handling
  iomap: complete partial direct I/O writes synchronously
  iomap: mark newly allocated buffer heads as new
  fs: factor out a __generic_write_end helper

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>

5 files changed, 11 insertions, 10 deletions

diff --git a/drivers/mtd/nand/raw/davinci_nand.c b/drivers/mtd/nand/raw/davinci_nand.c
index 7255a0d94374..cd12e5abafde 100644
--- a/drivers/mtd/nand/raw/davinci_nand.c
+++ b/drivers/mtd/nand/raw/davinci_nand.c
@@ -545,7 +545,7 @@ static struct davinci_nand_pdata
 			return ERR_PTR(-ENOMEM);
 		if (!of_property_read_u32(pdev->dev.of_node,
 			"ti,davinci-chipselect", &prop))
-			pdev->id = prop;
+			pdata->core_chipsel = prop;
 		else
 			return ERR_PTR(-EINVAL);
 
@@ -627,7 +627,7 @@ static int nand_davinci_probe(struct platform_device *pdev)
 		return -ENODEV;
 
 	/* which external chipselect will we be managing? */
-	if (pdev->id < 0 || pdev->id > 3)
+	if (pdata->core_chipsel < 0 || pdata->core_chipsel > 3)
 		return -ENODEV;
 
 	info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL);
@@ -683,7 +683,7 @@ static int nand_davinci_probe(struct platform_device *pdev)
 	info->ioaddr		= (uint32_t __force) vaddr;
 
 	info->current_cs	= info->ioaddr;
-	info->core_chipsel	= pdev->id;
+	info->core_chipsel	= pdata->core_chipsel;
 	info->mask_chipsel	= pdata->mask_chipsel;
 
 	/* use nandboot-capable ALE/CLE masks by default */
diff --git a/drivers/mtd/nand/raw/nand_bch.c b/drivers/mtd/nand/raw/nand_bch.c
index 7f11b68f6db1..b7387ace567a 100644
--- a/drivers/mtd/nand/raw/nand_bch.c
+++ b/drivers/mtd/nand/raw/nand_bch.c
@@ -186,7 +186,7 @@ struct nand_bch_control *nand_bch_init(struct mtd_info *mtd)
 	}
 
 	nbc->eccmask = kmalloc(eccbytes, GFP_KERNEL);
-	nbc->errloc = kmalloc(t*sizeof(*nbc->errloc), GFP_KERNEL);
+	nbc->errloc = kmalloc_array(t, sizeof(*nbc->errloc), GFP_KERNEL);
 	if (!nbc->eccmask || !nbc->errloc)
 		goto fail;
 	/*
diff --git a/drivers/mtd/nand/raw/nandsim.c b/drivers/mtd/nand/raw/nandsim.c
index e027c6f9d327..f8edacde49ab 100644
--- a/drivers/mtd/nand/raw/nandsim.c
+++ b/drivers/mtd/nand/raw/nandsim.c
@@ -565,8 +565,9 @@ static int __init alloc_device(struct nandsim *ns)
 			err = -EINVAL;
 			goto err_close;
 		}
-		ns->pages_written = vzalloc(BITS_TO_LONGS(ns->geom.pgnum) *
-					    sizeof(unsigned long));
+		ns->pages_written =
+			vzalloc(array_size(sizeof(unsigned long),
+					   BITS_TO_LONGS(ns->geom.pgnum)));
 		if (!ns->pages_written) {
 			NS_ERR("alloc_device: unable to allocate pages written array\n");
 			err = -ENOMEM;
@@ -582,7 +583,7 @@ static int __init alloc_device(struct nandsim *ns)
 		return 0;
 	}
 
-	ns->pages = vmalloc(ns->geom.pgnum * sizeof(union ns_mem));
+	ns->pages = vmalloc(array_size(sizeof(union ns_mem), ns->geom.pgnum));
 	if (!ns->pages) {
 		NS_ERR("alloc_device: unable to allocate page array\n");
 		return -ENOMEM;
diff --git a/drivers/mtd/nand/raw/qcom_nandc.c b/drivers/mtd/nand/raw/qcom_nandc.c
index b554fb6e609c..6a5519f0ff25 100644
--- a/drivers/mtd/nand/raw/qcom_nandc.c
+++ b/drivers/mtd/nand/raw/qcom_nandc.c
@@ -2510,8 +2510,8 @@ static int qcom_nandc_alloc(struct qcom_nand_controller *nandc)
 	if (!nandc->regs)
 		return -ENOMEM;
 
-	nandc->reg_read_buf = devm_kzalloc(nandc->dev,
-				MAX_REG_RD * sizeof(*nandc->reg_read_buf),
+	nandc->reg_read_buf = devm_kcalloc(nandc->dev,
+				MAX_REG_RD, sizeof(*nandc->reg_read_buf),
 				GFP_KERNEL);
 	if (!nandc->reg_read_buf)
 		return -ENOMEM;
diff --git a/drivers/mtd/nand/raw/s3c2410.c b/drivers/mtd/nand/raw/s3c2410.c
index 1bc0458063d8..19661c5d3220 100644
--- a/drivers/mtd/nand/raw/s3c2410.c
+++ b/drivers/mtd/nand/raw/s3c2410.c
@@ -1038,7 +1038,7 @@ static int s3c24xx_nand_probe_dt(struct platform_device *pdev)
 	if (!pdata->nr_sets)
 		return 0;
 
-	sets = devm_kzalloc(&pdev->dev, sizeof(*sets) * pdata->nr_sets,
+	sets = devm_kcalloc(&pdev->dev, pdata->nr_sets, sizeof(*sets),
 			    GFP_KERNEL);
 	if (!sets)
 		return -ENOMEM;