diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-05-26 13:02:30 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-05-26 13:02:30 -0400 |
commit | cdbbde14cb55dd10771ce79154f787322d88411b (patch) | |
tree | d9b0f1f1a16e7c3d2fb656f794826aa3b37e7628 | |
parent | 284e423811495f632a7a334b2b93caba07d4f778 (diff) | |
parent | 32529e0128923e42126b5d14e444c18295a452ba (diff) |
Merge of 'misc-fixes' branch from
rsync://rsync.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev
-rw-r--r-- | drivers/scsi/libata-core.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c index ee9b96da841e..63d3f70d06e1 100644 --- a/drivers/scsi/libata-core.c +++ b/drivers/scsi/libata-core.c | |||
@@ -2071,7 +2071,7 @@ void ata_sg_init_one(struct ata_queued_cmd *qc, void *buf, unsigned int buflen) | |||
2071 | sg = qc->sg; | 2071 | sg = qc->sg; |
2072 | sg->page = virt_to_page(buf); | 2072 | sg->page = virt_to_page(buf); |
2073 | sg->offset = (unsigned long) buf & ~PAGE_MASK; | 2073 | sg->offset = (unsigned long) buf & ~PAGE_MASK; |
2074 | sg_dma_len(sg) = buflen; | 2074 | sg->length = buflen; |
2075 | } | 2075 | } |
2076 | 2076 | ||
2077 | void ata_sg_init(struct ata_queued_cmd *qc, struct scatterlist *sg, | 2077 | void ata_sg_init(struct ata_queued_cmd *qc, struct scatterlist *sg, |
@@ -2101,11 +2101,12 @@ static int ata_sg_setup_one(struct ata_queued_cmd *qc) | |||
2101 | dma_addr_t dma_address; | 2101 | dma_addr_t dma_address; |
2102 | 2102 | ||
2103 | dma_address = dma_map_single(ap->host_set->dev, qc->buf_virt, | 2103 | dma_address = dma_map_single(ap->host_set->dev, qc->buf_virt, |
2104 | sg_dma_len(sg), dir); | 2104 | sg->length, dir); |
2105 | if (dma_mapping_error(dma_address)) | 2105 | if (dma_mapping_error(dma_address)) |
2106 | return -1; | 2106 | return -1; |
2107 | 2107 | ||
2108 | sg_dma_address(sg) = dma_address; | 2108 | sg_dma_address(sg) = dma_address; |
2109 | sg_dma_len(sg) = sg->length; | ||
2109 | 2110 | ||
2110 | DPRINTK("mapped buffer of %d bytes for %s\n", sg_dma_len(sg), | 2111 | DPRINTK("mapped buffer of %d bytes for %s\n", sg_dma_len(sg), |
2111 | qc->tf.flags & ATA_TFLAG_WRITE ? "write" : "read"); | 2112 | qc->tf.flags & ATA_TFLAG_WRITE ? "write" : "read"); |
@@ -2310,7 +2311,7 @@ static void ata_pio_sector(struct ata_queued_cmd *qc) | |||
2310 | qc->cursect++; | 2311 | qc->cursect++; |
2311 | qc->cursg_ofs++; | 2312 | qc->cursg_ofs++; |
2312 | 2313 | ||
2313 | if ((qc->cursg_ofs * ATA_SECT_SIZE) == sg_dma_len(&sg[qc->cursg])) { | 2314 | if ((qc->cursg_ofs * ATA_SECT_SIZE) == (&sg[qc->cursg])->length) { |
2314 | qc->cursg++; | 2315 | qc->cursg++; |
2315 | qc->cursg_ofs = 0; | 2316 | qc->cursg_ofs = 0; |
2316 | } | 2317 | } |
@@ -2347,7 +2348,7 @@ next_page: | |||
2347 | page = nth_page(page, (offset >> PAGE_SHIFT)); | 2348 | page = nth_page(page, (offset >> PAGE_SHIFT)); |
2348 | offset %= PAGE_SIZE; | 2349 | offset %= PAGE_SIZE; |
2349 | 2350 | ||
2350 | count = min(sg_dma_len(sg) - qc->cursg_ofs, bytes); | 2351 | count = min(sg->length - qc->cursg_ofs, bytes); |
2351 | 2352 | ||
2352 | /* don't cross page boundaries */ | 2353 | /* don't cross page boundaries */ |
2353 | count = min(count, (unsigned int)PAGE_SIZE - offset); | 2354 | count = min(count, (unsigned int)PAGE_SIZE - offset); |
@@ -2358,7 +2359,7 @@ next_page: | |||
2358 | qc->curbytes += count; | 2359 | qc->curbytes += count; |
2359 | qc->cursg_ofs += count; | 2360 | qc->cursg_ofs += count; |
2360 | 2361 | ||
2361 | if (qc->cursg_ofs == sg_dma_len(sg)) { | 2362 | if (qc->cursg_ofs == sg->length) { |
2362 | qc->cursg++; | 2363 | qc->cursg++; |
2363 | qc->cursg_ofs = 0; | 2364 | qc->cursg_ofs = 0; |
2364 | } | 2365 | } |
@@ -2371,7 +2372,7 @@ next_page: | |||
2371 | kunmap(page); | 2372 | kunmap(page); |
2372 | 2373 | ||
2373 | if (bytes) { | 2374 | if (bytes) { |
2374 | if (qc->cursg_ofs < sg_dma_len(sg)) | 2375 | if (qc->cursg_ofs < sg->length) |
2375 | goto next_page; | 2376 | goto next_page; |
2376 | goto next_sg; | 2377 | goto next_sg; |
2377 | } | 2378 | } |