diff options
Diffstat (limited to 'block/bio-integrity.c')
-rw-r--r-- | block/bio-integrity.c | 42 |
1 files changed, 21 insertions, 21 deletions
diff --git a/block/bio-integrity.c b/block/bio-integrity.c index e84f7fb8694b..6a3aacf57b19 100644 --- a/block/bio-integrity.c +++ b/block/bio-integrity.c | |||
@@ -185,20 +185,20 @@ bool bio_integrity_enabled(struct bio *bio) | |||
185 | EXPORT_SYMBOL(bio_integrity_enabled); | 185 | EXPORT_SYMBOL(bio_integrity_enabled); |
186 | 186 | ||
187 | /** | 187 | /** |
188 | * bio_integrity_hw_sectors - Convert 512b sectors to hardware ditto | 188 | * bio_integrity_intervals - Return number of integrity intervals for a bio |
189 | * @bi: blk_integrity profile for device | 189 | * @bi: blk_integrity profile for device |
190 | * @sectors: Number of 512 sectors to convert | 190 | * @sectors: Size of the bio in 512-byte sectors |
191 | * | 191 | * |
192 | * Description: The block layer calculates everything in 512 byte | 192 | * Description: The block layer calculates everything in 512 byte |
193 | * sectors but integrity metadata is done in terms of the hardware | 193 | * sectors but integrity metadata is done in terms of the data integrity |
194 | * sector size of the storage device. Convert the block layer sectors | 194 | * interval size of the storage device. Convert the block layer sectors |
195 | * to physical sectors. | 195 | * to the appropriate number of integrity intervals. |
196 | */ | 196 | */ |
197 | static inline unsigned int bio_integrity_hw_sectors(struct blk_integrity *bi, | 197 | static inline unsigned int bio_integrity_intervals(struct blk_integrity *bi, |
198 | unsigned int sectors) | 198 | unsigned int sectors) |
199 | { | 199 | { |
200 | /* At this point there are only 512b or 4096b DIF/EPP devices */ | 200 | /* At this point there are only 512b or 4096b DIF/EPP devices */ |
201 | if (bi->sector_size == 4096) | 201 | if (bi->interval == 4096) |
202 | return sectors >>= 3; | 202 | return sectors >>= 3; |
203 | 203 | ||
204 | return sectors; | 204 | return sectors; |
@@ -207,7 +207,7 @@ static inline unsigned int bio_integrity_hw_sectors(struct blk_integrity *bi, | |||
207 | static inline unsigned int bio_integrity_bytes(struct blk_integrity *bi, | 207 | static inline unsigned int bio_integrity_bytes(struct blk_integrity *bi, |
208 | unsigned int sectors) | 208 | unsigned int sectors) |
209 | { | 209 | { |
210 | return bio_integrity_hw_sectors(bi, sectors) * bi->tuple_size; | 210 | return bio_integrity_intervals(bi, sectors) * bi->tuple_size; |
211 | } | 211 | } |
212 | 212 | ||
213 | /** | 213 | /** |
@@ -221,25 +221,25 @@ static int bio_integrity_generate_verify(struct bio *bio, int operate) | |||
221 | struct blk_integrity_exchg bix; | 221 | struct blk_integrity_exchg bix; |
222 | struct bio_vec *bv; | 222 | struct bio_vec *bv; |
223 | struct bio_integrity_payload *bip = bio_integrity(bio); | 223 | struct bio_integrity_payload *bip = bio_integrity(bio); |
224 | sector_t sector; | 224 | sector_t seed; |
225 | unsigned int sectors, ret = 0, i; | 225 | unsigned int intervals, ret = 0, i; |
226 | void *prot_buf = page_address(bip->bip_vec->bv_page) + | 226 | void *prot_buf = page_address(bip->bip_vec->bv_page) + |
227 | bip->bip_vec->bv_offset; | 227 | bip->bip_vec->bv_offset; |
228 | 228 | ||
229 | if (operate) | 229 | if (operate) |
230 | sector = bio->bi_iter.bi_sector; | 230 | seed = bio->bi_iter.bi_sector; |
231 | else | 231 | else |
232 | sector = bip->bip_iter.bi_sector; | 232 | seed = bip->bip_iter.bi_sector; |
233 | 233 | ||
234 | bix.disk_name = bio->bi_bdev->bd_disk->disk_name; | 234 | bix.disk_name = bio->bi_bdev->bd_disk->disk_name; |
235 | bix.sector_size = bi->sector_size; | 235 | bix.interval = bi->interval; |
236 | 236 | ||
237 | bio_for_each_segment_all(bv, bio, i) { | 237 | bio_for_each_segment_all(bv, bio, i) { |
238 | void *kaddr = kmap_atomic(bv->bv_page); | 238 | void *kaddr = kmap_atomic(bv->bv_page); |
239 | bix.data_buf = kaddr + bv->bv_offset; | 239 | bix.data_buf = kaddr + bv->bv_offset; |
240 | bix.data_size = bv->bv_len; | 240 | bix.data_size = bv->bv_len; |
241 | bix.prot_buf = prot_buf; | 241 | bix.prot_buf = prot_buf; |
242 | bix.sector = sector; | 242 | bix.seed = seed; |
243 | 243 | ||
244 | if (operate) | 244 | if (operate) |
245 | bi->generate_fn(&bix); | 245 | bi->generate_fn(&bix); |
@@ -251,9 +251,9 @@ static int bio_integrity_generate_verify(struct bio *bio, int operate) | |||
251 | } | 251 | } |
252 | } | 252 | } |
253 | 253 | ||
254 | sectors = bv->bv_len / bi->sector_size; | 254 | intervals = bv->bv_len / bi->interval; |
255 | sector += sectors; | 255 | seed += intervals; |
256 | prot_buf += sectors * bi->tuple_size; | 256 | prot_buf += intervals * bi->tuple_size; |
257 | 257 | ||
258 | kunmap_atomic(kaddr); | 258 | kunmap_atomic(kaddr); |
259 | } | 259 | } |
@@ -294,17 +294,17 @@ int bio_integrity_prep(struct bio *bio) | |||
294 | unsigned long start, end; | 294 | unsigned long start, end; |
295 | unsigned int len, nr_pages; | 295 | unsigned int len, nr_pages; |
296 | unsigned int bytes, offset, i; | 296 | unsigned int bytes, offset, i; |
297 | unsigned int sectors; | 297 | unsigned int intervals; |
298 | 298 | ||
299 | bi = bdev_get_integrity(bio->bi_bdev); | 299 | bi = bdev_get_integrity(bio->bi_bdev); |
300 | q = bdev_get_queue(bio->bi_bdev); | 300 | q = bdev_get_queue(bio->bi_bdev); |
301 | BUG_ON(bi == NULL); | 301 | BUG_ON(bi == NULL); |
302 | BUG_ON(bio_integrity(bio)); | 302 | BUG_ON(bio_integrity(bio)); |
303 | 303 | ||
304 | sectors = bio_integrity_hw_sectors(bi, bio_sectors(bio)); | 304 | intervals = bio_integrity_intervals(bi, bio_sectors(bio)); |
305 | 305 | ||
306 | /* Allocate kernel buffer for protection data */ | 306 | /* Allocate kernel buffer for protection data */ |
307 | len = sectors * bi->tuple_size; | 307 | len = intervals * bi->tuple_size; |
308 | buf = kmalloc(len, GFP_NOIO | q->bounce_gfp); | 308 | buf = kmalloc(len, GFP_NOIO | q->bounce_gfp); |
309 | if (unlikely(buf == NULL)) { | 309 | if (unlikely(buf == NULL)) { |
310 | printk(KERN_ERR "could not allocate integrity buffer\n"); | 310 | printk(KERN_ERR "could not allocate integrity buffer\n"); |