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path: root/drivers/block/zram/zram_drv.c
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Diffstat (limited to 'drivers/block/zram/zram_drv.c')
-rw-r--r--drivers/block/zram/zram_drv.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
index a46776a84480..1b4e195c0d3c 100644
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -291,13 +291,14 @@ static void reset_bdev(struct zram *zram)
static ssize_t backing_dev_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
+ struct file *file;
struct zram *zram = dev_to_zram(dev);
- struct file *file = zram->backing_dev;
char *p;
ssize_t ret;
down_read(&zram->init_lock);
- if (!zram_wb_enabled(zram)) {
+ file = zram->backing_dev;
+ if (!file) {
memcpy(buf, "none\n", 5);
up_read(&zram->init_lock);
return 5;
@@ -488,18 +489,18 @@ struct zram_work {
struct zram *zram;
unsigned long entry;
struct bio *bio;
+ struct bio_vec bvec;
};
#if PAGE_SIZE != 4096
static void zram_sync_read(struct work_struct *work)
{
- struct bio_vec bvec;
struct zram_work *zw = container_of(work, struct zram_work, work);
struct zram *zram = zw->zram;
unsigned long entry = zw->entry;
struct bio *bio = zw->bio;
- read_from_bdev_async(zram, &bvec, entry, bio);
+ read_from_bdev_async(zram, &zw->bvec, entry, bio);
}
/*
@@ -512,6 +513,7 @@ static int read_from_bdev_sync(struct zram *zram, struct bio_vec *bvec,
{
struct zram_work work;
+ work.bvec = *bvec;
work.zram = zram;
work.entry = entry;
work.bio = bio;