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-rw-r--r--drivers/mtd/mtdcore.c6
-rw-r--r--drivers/mtd/nand/atmel_nand.c9
-rw-r--r--drivers/mtd/nand/sh_flctl.c4
-rw-r--r--drivers/mtd/ubi/wl.c26
4 files changed, 32 insertions, 13 deletions
diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c
index 374c46dff7dd..ec794a72975d 100644
--- a/drivers/mtd/mtdcore.c
+++ b/drivers/mtd/mtdcore.c
@@ -1077,7 +1077,8 @@ EXPORT_SYMBOL_GPL(mtd_writev);
* until the request succeeds or until the allocation size falls below
* the system page size. This attempts to make sure it does not adversely
* impact system performance, so when allocating more than one page, we
- * ask the memory allocator to avoid re-trying.
+ * ask the memory allocator to avoid re-trying, swapping, writing back
+ * or performing I/O.
*
* Note, this function also makes sure that the allocated buffer is aligned to
* the MTD device's min. I/O unit, i.e. the "mtd->writesize" value.
@@ -1091,7 +1092,8 @@ EXPORT_SYMBOL_GPL(mtd_writev);
*/
void *mtd_kmalloc_up_to(const struct mtd_info *mtd, size_t *size)
{
- gfp_t flags = __GFP_NOWARN | __GFP_WAIT | __GFP_NORETRY;
+ gfp_t flags = __GFP_NOWARN | __GFP_WAIT |
+ __GFP_NORETRY | __GFP_NO_KSWAPD;
size_t min_alloc = max_t(size_t, mtd->writesize, PAGE_SIZE);
void *kbuf;
diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c
index 914455783302..92623ac2015a 100644
--- a/drivers/mtd/nand/atmel_nand.c
+++ b/drivers/mtd/nand/atmel_nand.c
@@ -41,6 +41,7 @@
#include <linux/gpio.h>
#include <linux/io.h>
#include <linux/platform_data/atmel.h>
+#include <linux/pinctrl/consumer.h>
#include <mach/cpu.h>
@@ -1370,6 +1371,7 @@ static int __init atmel_nand_probe(struct platform_device *pdev)
struct resource *mem;
struct mtd_part_parser_data ppdata = {};
int res;
+ struct pinctrl *pinctrl;
mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!mem) {
@@ -1414,6 +1416,13 @@ static int __init atmel_nand_probe(struct platform_device *pdev)
nand_chip->IO_ADDR_W = host->io_base;
nand_chip->cmd_ctrl = atmel_nand_cmd_ctrl;
+ pinctrl = devm_pinctrl_get_select_default(&pdev->dev);
+ if (IS_ERR(pinctrl)) {
+ dev_err(host->dev, "Failed to request pinctrl\n");
+ res = PTR_ERR(pinctrl);
+ goto err_ecc_ioremap;
+ }
+
if (gpio_is_valid(host->board.rdy_pin)) {
res = gpio_request(host->board.rdy_pin, "nand_rdy");
if (res < 0) {
diff --git a/drivers/mtd/nand/sh_flctl.c b/drivers/mtd/nand/sh_flctl.c
index 4fbfe96e37a1..f48ac5d80bbf 100644
--- a/drivers/mtd/nand/sh_flctl.c
+++ b/drivers/mtd/nand/sh_flctl.c
@@ -727,7 +727,9 @@ static void flctl_select_chip(struct mtd_info *mtd, int chipnr)
if (!flctl->qos_request) {
ret = dev_pm_qos_add_request(&flctl->pdev->dev,
- &flctl->pm_qos, 100);
+ &flctl->pm_qos,
+ DEV_PM_QOS_LATENCY,
+ 100);
if (ret < 0)
dev_err(&flctl->pdev->dev,
"PM QoS request failed: %d\n", ret);
diff --git a/drivers/mtd/ubi/wl.c b/drivers/mtd/ubi/wl.c
index da7b44998b40..2144f611196e 100644
--- a/drivers/mtd/ubi/wl.c
+++ b/drivers/mtd/ubi/wl.c
@@ -498,7 +498,7 @@ out:
* @ubi: UBI device description object
*
* This function returns a physical eraseblock in case of success and a
- * negative error code in case of failure. Might sleep.
+ * negative error code in case of failure.
*/
static int __wl_get_peb(struct ubi_device *ubi)
{
@@ -540,13 +540,6 @@ retry:
* ubi_wl_get_peb() after removing e from the pool. */
prot_queue_add(ubi, e);
#endif
- err = ubi_self_check_all_ff(ubi, e->pnum, ubi->vid_hdr_aloffset,
- ubi->peb_size - ubi->vid_hdr_aloffset);
- if (err) {
- ubi_err("new PEB %d does not contain all 0xFF bytes", e->pnum);
- return err;
- }
-
return e->pnum;
}
@@ -679,17 +672,30 @@ static struct ubi_wl_entry *get_peb_for_wl(struct ubi_device *ubi)
#else
static struct ubi_wl_entry *get_peb_for_wl(struct ubi_device *ubi)
{
- return find_wl_entry(ubi, &ubi->free, WL_FREE_MAX_DIFF);
+ struct ubi_wl_entry *e;
+
+ e = find_wl_entry(ubi, &ubi->free, WL_FREE_MAX_DIFF);
+ self_check_in_wl_tree(ubi, e, &ubi->free);
+ rb_erase(&e->u.rb, &ubi->free);
+
+ return e;
}
int ubi_wl_get_peb(struct ubi_device *ubi)
{
- int peb;
+ int peb, err;
spin_lock(&ubi->wl_lock);
peb = __wl_get_peb(ubi);
spin_unlock(&ubi->wl_lock);
+ err = ubi_self_check_all_ff(ubi, peb, ubi->vid_hdr_aloffset,
+ ubi->peb_size - ubi->vid_hdr_aloffset);
+ if (err) {
+ ubi_err("new PEB %d does not contain all 0xFF bytes", peb);
+ return err;
+ }
+
return peb;
}
#endif