z2ram.c (4f2c0a4acffbec01079c28f839422e64ddeff004) z2ram.c (d32e2bf83791727a84ad5d3e3d713e82f9adbe30)
1/*
2** z2ram - Amiga pseudo-driver to access 16bit-RAM in ZorroII space
3** as a block device, to be used as a RAM disk or swap space
4**
5** Copyright (C) 1994 by Ingo Wilken (Ingo.Wilken@informatik.uni-oldenburg.de)
6**
7** ++Geert: support for zorro_unused_z2ram, better range checking
8** ++roman: translate accesses via an array

--- 126 unchanged lines hidden (view full) ---

135 }
136
137 z2ram_size++;
138 }
139
140 return;
141}
142
1/*
2** z2ram - Amiga pseudo-driver to access 16bit-RAM in ZorroII space
3** as a block device, to be used as a RAM disk or swap space
4**
5** Copyright (C) 1994 by Ingo Wilken (Ingo.Wilken@informatik.uni-oldenburg.de)
6**
7** ++Geert: support for zorro_unused_z2ram, better range checking
8** ++roman: translate accesses via an array

--- 126 unchanged lines hidden (view full) ---

135 }
136
137 z2ram_size++;
138 }
139
140 return;
141}
142
143static int z2_open(struct block_device *bdev, fmode_t mode)
143static int z2_open(struct gendisk *disk, fmode_t mode)
144{
144{
145 int device;
145 int device = disk->first_minor;
146 int max_z2_map = (Z2RAM_SIZE / Z2RAM_CHUNKSIZE) * sizeof(z2ram_map[0]);
147 int max_chip_map = (amiga_chip_size / Z2RAM_CHUNKSIZE) *
148 sizeof(z2ram_map[0]);
149 int rc = -ENOMEM;
150
146 int max_z2_map = (Z2RAM_SIZE / Z2RAM_CHUNKSIZE) * sizeof(z2ram_map[0]);
147 int max_chip_map = (amiga_chip_size / Z2RAM_CHUNKSIZE) *
148 sizeof(z2ram_map[0]);
149 int rc = -ENOMEM;
150
151 device = MINOR(bdev->bd_dev);
152
153 mutex_lock(&z2ram_mutex);
154 if (current_device != -1 && current_device != device) {
155 rc = -EBUSY;
156 goto err_out;
157 }
158
159 if (current_device == -1) {
160 z2_count = 0;

--- 254 unchanged lines hidden --- 		151 mutex_lock(&z2ram_mutex);
152 if (current_device != -1 && current_device != device) {
153 rc = -EBUSY;
154 goto err_out;
155 }
156
157 if (current_device == -1) {
158 z2_count = 0;

--- 254 unchanged lines hidden ---