diff options
| -rw-r--r-- | drivers/dax/Kconfig | 5 | ||||
| -rw-r--r-- | drivers/dax/super.c | 11 |
2 files changed, 3 insertions, 13 deletions
diff --git a/drivers/dax/Kconfig b/drivers/dax/Kconfig index 6b7e20eae16c..b79aa8f7a497 100644 --- a/drivers/dax/Kconfig +++ b/drivers/dax/Kconfig @@ -28,9 +28,4 @@ config DEV_DAX_PMEM Say Y if unsure -config NR_DEV_DAX - int "Maximum number of Device-DAX instances" - default 32768 - range 256 2147483647 - endif diff --git a/drivers/dax/super.c b/drivers/dax/super.c index e8998d15f3cd..ebf43f531ada 100644 --- a/drivers/dax/super.c +++ b/drivers/dax/super.c @@ -21,10 +21,6 @@ #include <linux/dax.h> #include <linux/fs.h> -static int nr_dax = CONFIG_NR_DEV_DAX; -module_param(nr_dax, int, S_IRUGO); -MODULE_PARM_DESC(nr_dax, "max number of dax device instances"); - static dev_t dax_devt; DEFINE_STATIC_SRCU(dax_srcu); static struct vfsmount *dax_mnt; @@ -331,7 +327,7 @@ struct dax_device *alloc_dax(void *private, const char *__host, if (__host && !host) return NULL; - minor = ida_simple_get(&dax_minor_ida, 0, nr_dax, GFP_KERNEL); + minor = ida_simple_get(&dax_minor_ida, 0, MINORMASK+1, GFP_KERNEL); if (minor < 0) goto err_minor; @@ -475,8 +471,7 @@ static int __init dax_fs_init(void) if (rc) return rc; - nr_dax = max(nr_dax, 256); - rc = alloc_chrdev_region(&dax_devt, 0, nr_dax, "dax"); + rc = alloc_chrdev_region(&dax_devt, 0, MINORMASK+1, "dax"); if (rc) __dax_fs_exit(); return rc; @@ -484,7 +479,7 @@ static int __init dax_fs_init(void) static void __exit dax_fs_exit(void) { - unregister_chrdev_region(dax_devt, nr_dax); + unregister_chrdev_region(dax_devt, MINORMASK+1); ida_destroy(&dax_minor_ida); __dax_fs_exit(); } |