diff options
Diffstat (limited to 'drivers/staging/zram/zram_drv.h')
| -rw-r--r-- | drivers/staging/zram/zram_drv.h | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/staging/zram/zram_drv.h b/drivers/staging/zram/zram_drv.h index abe5221c100d..e5cd2469b6a0 100644 --- a/drivers/staging/zram/zram_drv.h +++ b/drivers/staging/zram/zram_drv.h @@ -47,7 +47,7 @@ static const unsigned default_disksize_perc_ram = 25; * Pages that compress to size greater than this are stored * uncompressed in memory. */ -static const unsigned max_zpage_size = PAGE_SIZE / 4 * 3; +static const size_t max_zpage_size = PAGE_SIZE / 4 * 3; /* * NOTE: max_zpage_size must be less than or equal to: @@ -112,8 +112,8 @@ struct zram { struct request_queue *queue; struct gendisk *disk; int init_done; - /* Prevent concurrent execution of device init and reset */ - struct mutex init_lock; + /* Prevent concurrent execution of device init, reset and R/W request */ + struct rw_semaphore init_lock; /* * This is the limit on amount of *uncompressed* worth of data * we can store in a disk. @@ -123,13 +123,13 @@ struct zram { struct zram_stats stats; }; -extern struct zram *devices; -extern unsigned int num_devices; +extern struct zram *zram_devices; +extern unsigned int zram_num_devices; #ifdef CONFIG_SYSFS extern struct attribute_group zram_disk_attr_group; #endif extern int zram_init_device(struct zram *zram); -extern void zram_reset_device(struct zram *zram); +extern void __zram_reset_device(struct zram *zram); #endif |