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Fixup rq_for_each_segment() indentation

Browse source 
Remove one level of nesting where appropriate.

Signed-off-by: Jens Axboe <[email protected]>
This commit is contained in:
Jens Axboe 2007-08-16 13:43:12 +02:00 • committed by Jens Axboe
commit 6c92e699b5
11 changed files with 134 additions and 143 deletions
Download patch file Download diff file Expand all files Collapse all files

24
drivers/block/lguest_blk.c
View file

@ -147,18 +147,18 @@ static unsigned int req_to_dma(struct request *req, struct lguest_dma *dma)
struct bio_vec *bvec;
rq_for_each_segment(bvec, req, iter) {
/* We told the block layer not to give us too many. */
BUG_ON(i == LGUEST_MAX_DMA_SECTIONS);
/* If we had a zero-length segment, it would look like
* the end of the data referred to by the "struct
* lguest_dma", so make sure that doesn't happen. */
BUG_ON(!bvec->bv_len);
/* Convert page & offset to a physical address */
dma->addr[i] = page_to_phys(bvec->bv_page)
+ bvec->bv_offset;
dma->len[i] = bvec->bv_len;
len += bvec->bv_len;
i++;
/* We told the block layer not to give us too many. */
BUG_ON(i == LGUEST_MAX_DMA_SECTIONS);
/* If we had a zero-length segment, it would look like
* the end of the data referred to by the "struct
* lguest_dma", so make sure that doesn't happen. */
BUG_ON(!bvec->bv_len);
/* Convert page & offset to a physical address */
dma->addr[i] = page_to_phys(bvec->bv_page)
+ bvec->bv_offset;
dma->len[i] = bvec->bv_len;
len += bvec->bv_len;
i++;
}
/* If the array isn't full, we mark the end with a 0 length */
if (i < LGUEST_MAX_DMA_SECTIONS)

43
drivers/block/nbd.c
View file

@ -212,19 +212,17 @@ static int nbd_send_req(struct nbd_device *lo, struct request *req)
* whether to set MSG_MORE or not...
*/
rq_for_each_segment(bvec, req, iter) {
flags = 0;
if (!rq_iter_last(req, iter))
flags = MSG_MORE;
dprintk(DBG_TX, "%s: request %p: sending %d bytes data\n",
lo->disk->disk_name, req,
bvec->bv_len);
result = sock_send_bvec(sock, bvec, flags);
if (result <= 0) {
printk(KERN_ERR "%s: Send data failed (result %d)\n",
lo->disk->disk_name,
result);
goto error_out;
}
flags = 0;
if (!rq_iter_last(req, iter))
flags = MSG_MORE;
dprintk(DBG_TX, "%s: request %p: sending %d bytes data\n",
lo->disk->disk_name, req, bvec->bv_len);
result = sock_send_bvec(sock, bvec, flags);
if (result <= 0) {
printk(KERN_ERR "%s: Send data failed (result %d)\n",
lo->disk->disk_name, result);
goto error_out;
}
}
}
return 0;
@ -323,16 +321,15 @@ static struct request *nbd_read_stat(struct nbd_device *lo)
struct bio_vec *bvec;
rq_for_each_segment(bvec, req, iter) {
result = sock_recv_bvec(sock, bvec);
if (result <= 0) {
printk(KERN_ERR "%s: Receive data failed (result %d)\n",
lo->disk->disk_name,
result);
req->errors++;
return req;
}
dprintk(DBG_RX, "%s: request %p: got %d bytes data\n",
lo->disk->disk_name, req, bvec->bv_len);
result = sock_recv_bvec(sock, bvec);
if (result <= 0) {
printk(KERN_ERR "%s: Receive data failed (result %d)\n",
lo->disk->disk_name, result);
req->errors++;
return req;
}
dprintk(DBG_RX, "%s: request %p: got %d bytes data\n",
lo->disk->disk_name, req, bvec->bv_len);
}
}
return req;

19
drivers/block/ps3disk.c
View file

@ -105,16 +105,15 @@ static void ps3disk_scatter_gather(struct ps3_storage_device *dev,
bio_sectors(iter.bio),
(unsigned long)iter.bio->bi_sector);
size = bvec->bv_len;
buf = bvec_kmap_irq(bvec, &flags);
if (gather)
memcpy(dev->bounce_buf+offset, buf, size);
else
memcpy(buf, dev->bounce_buf+offset, size);
offset += size;
flush_kernel_dcache_page(bvec->bv_page);
bvec_kunmap_irq(bvec, &flags);
size = bvec->bv_len;
buf = bvec_kmap_irq(bvec, &flags);
if (gather)
memcpy(dev->bounce_buf+offset, buf, size);
else
memcpy(buf, dev->bounce_buf+offset, size);
offset += size;
flush_kernel_dcache_page(bvec->bv_page);
bvec_kunmap_irq(bvec, &flags);
i++;
}
}

23
drivers/block/xen-blkfront.c
View file

@ -186,31 +186,30 @@ static int blkif_queue_request(struct request *req)
ring_req->nr_segments = 0;
rq_for_each_segment(bvec, req, iter) {
BUG_ON(ring_req->nr_segments
== BLKIF_MAX_SEGMENTS_PER_REQUEST);
buffer_mfn = pfn_to_mfn(page_to_pfn(bvec->bv_page));
fsect = bvec->bv_offset >> 9;
lsect = fsect + (bvec->bv_len >> 9) - 1;
/* install a grant reference. */
ref = gnttab_claim_grant_reference(&gref_head);
BUG_ON(ref == -ENOSPC);
BUG_ON(ring_req->nr_segments == BLKIF_MAX_SEGMENTS_PER_REQUEST);
buffer_mfn = pfn_to_mfn(page_to_pfn(bvec->bv_page));
fsect = bvec->bv_offset >> 9;
lsect = fsect + (bvec->bv_len >> 9) - 1;
/* install a grant reference. */
ref = gnttab_claim_grant_reference(&gref_head);
BUG_ON(ref == -ENOSPC);
gnttab_grant_foreign_access_ref(
gnttab_grant_foreign_access_ref(
ref,
info->xbdev->otherend_id,
buffer_mfn,
rq_data_dir(req) );
info->shadow[id].frame[ring_req->nr_segments] =
info->shadow[id].frame[ring_req->nr_segments] =
mfn_to_pfn(buffer_mfn);
ring_req->seg[ring_req->nr_segments] =
ring_req->seg[ring_req->nr_segments] =
(struct blkif_request_segment) {
.gref = ref,
.first_sect = fsect,
.last_sect = lsect };
ring_req->nr_segments++;
ring_req->nr_segments++;
}
info->ring.req_prod_pvt++;