diff options
Diffstat (limited to 'drivers/s390/block/dasd_eckd.c')
-rw-r--r-- | drivers/s390/block/dasd_eckd.c | 47 |
1 files changed, 5 insertions, 42 deletions
diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c index a17d73193aab..cecab2274a6e 100644 --- a/drivers/s390/block/dasd_eckd.c +++ b/drivers/s390/block/dasd_eckd.c | |||
@@ -134,44 +134,7 @@ ceil_quot(unsigned int d1, unsigned int d2) | |||
134 | return (d1 + (d2 - 1)) / d2; | 134 | return (d1 + (d2 - 1)) / d2; |
135 | } | 135 | } |
136 | 136 | ||
137 | static inline int | 137 | static unsigned int |
138 | bytes_per_record(struct dasd_eckd_characteristics *rdc, int kl, int dl) | ||
139 | { | ||
140 | unsigned int fl1, fl2, int1, int2; | ||
141 | int bpr; | ||
142 | |||
143 | switch (rdc->formula) { | ||
144 | case 0x01: | ||
145 | fl1 = round_up_multiple(ECKD_F2(rdc) + dl, ECKD_F1(rdc)); | ||
146 | fl2 = round_up_multiple(kl ? ECKD_F2(rdc) + kl : 0, | ||
147 | ECKD_F1(rdc)); | ||
148 | bpr = fl1 + fl2; | ||
149 | break; | ||
150 | case 0x02: | ||
151 | int1 = ceil_quot(dl + ECKD_F6(rdc), ECKD_F5(rdc) << 1); | ||
152 | int2 = ceil_quot(kl + ECKD_F6(rdc), ECKD_F5(rdc) << 1); | ||
153 | fl1 = round_up_multiple(ECKD_F1(rdc) * ECKD_F2(rdc) + dl + | ||
154 | ECKD_F6(rdc) + ECKD_F4(rdc) * int1, | ||
155 | ECKD_F1(rdc)); | ||
156 | fl2 = round_up_multiple(ECKD_F1(rdc) * ECKD_F3(rdc) + kl + | ||
157 | ECKD_F6(rdc) + ECKD_F4(rdc) * int2, | ||
158 | ECKD_F1(rdc)); | ||
159 | bpr = fl1 + fl2; | ||
160 | break; | ||
161 | default: | ||
162 | bpr = 0; | ||
163 | break; | ||
164 | } | ||
165 | return bpr; | ||
166 | } | ||
167 | |||
168 | static inline unsigned int | ||
169 | bytes_per_track(struct dasd_eckd_characteristics *rdc) | ||
170 | { | ||
171 | return *(unsigned int *) (rdc->byte_per_track) >> 8; | ||
172 | } | ||
173 | |||
174 | static inline unsigned int | ||
175 | recs_per_track(struct dasd_eckd_characteristics * rdc, | 138 | recs_per_track(struct dasd_eckd_characteristics * rdc, |
176 | unsigned int kl, unsigned int dl) | 139 | unsigned int kl, unsigned int dl) |
177 | { | 140 | { |
@@ -204,7 +167,7 @@ recs_per_track(struct dasd_eckd_characteristics * rdc, | |||
204 | return 0; | 167 | return 0; |
205 | } | 168 | } |
206 | 169 | ||
207 | static inline int | 170 | static int |
208 | check_XRC (struct ccw1 *de_ccw, | 171 | check_XRC (struct ccw1 *de_ccw, |
209 | struct DE_eckd_data *data, | 172 | struct DE_eckd_data *data, |
210 | struct dasd_device *device) | 173 | struct dasd_device *device) |
@@ -230,7 +193,7 @@ check_XRC (struct ccw1 *de_ccw, | |||
230 | return rc; | 193 | return rc; |
231 | } | 194 | } |
232 | 195 | ||
233 | static inline int | 196 | static int |
234 | define_extent(struct ccw1 * ccw, struct DE_eckd_data * data, int trk, | 197 | define_extent(struct ccw1 * ccw, struct DE_eckd_data * data, int trk, |
235 | int totrk, int cmd, struct dasd_device * device) | 198 | int totrk, int cmd, struct dasd_device * device) |
236 | { | 199 | { |
@@ -317,7 +280,7 @@ define_extent(struct ccw1 * ccw, struct DE_eckd_data * data, int trk, | |||
317 | return rc; | 280 | return rc; |
318 | } | 281 | } |
319 | 282 | ||
320 | static inline void | 283 | static void |
321 | locate_record(struct ccw1 *ccw, struct LO_eckd_data *data, int trk, | 284 | locate_record(struct ccw1 *ccw, struct LO_eckd_data *data, int trk, |
322 | int rec_on_trk, int no_rec, int cmd, | 285 | int rec_on_trk, int no_rec, int cmd, |
323 | struct dasd_device * device, int reclen) | 286 | struct dasd_device * device, int reclen) |
@@ -1617,7 +1580,7 @@ dasd_eckd_ioctl(struct dasd_device *device, unsigned int cmd, void __user *argp) | |||
1617 | * Dump the range of CCWs into 'page' buffer | 1580 | * Dump the range of CCWs into 'page' buffer |
1618 | * and return number of printed chars. | 1581 | * and return number of printed chars. |
1619 | */ | 1582 | */ |
1620 | static inline int | 1583 | static int |
1621 | dasd_eckd_dump_ccw_range(struct ccw1 *from, struct ccw1 *to, char *page) | 1584 | dasd_eckd_dump_ccw_range(struct ccw1 *from, struct ccw1 *to, char *page) |
1622 | { | 1585 | { |
1623 | int len, count; | 1586 | int len, count; |