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Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block

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* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
  ubd: fix incorrect sector handling during request restart
  ps3disk: passing wrong variable to bvec_kunmap_irq()
This commit is contained in:
Linus Torvalds 2010-10-15 09:49:16 -07:00
commit 264780c290
2 changed files with 6 additions and 5 deletions
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9
arch/um/drivers/ubd_kern.c
View File

@ -163,6 +163,7 @@ struct ubd {
struct scatterlist sg[MAX_SG];
struct request *request;
int start_sg, end_sg;
sector_t rq_pos;
};
#define DEFAULT_COW { \
@ -187,6 +188,7 @@ struct ubd {
.request = NULL, \
.start_sg = 0, \
.end_sg = 0, \
.rq_pos = 0, \
}
/* Protected by ubd_lock */
@ -1228,7 +1230,6 @@ static void do_ubd_request(struct request_queue *q)
{
struct io_thread_req *io_req;
struct request *req;
sector_t sector;
int n;
while(1){
@ -1239,12 +1240,12 @@ static void do_ubd_request(struct request_queue *q)
return;
dev->request = req;
dev->rq_pos = blk_rq_pos(req);
dev->start_sg = 0;
dev->end_sg = blk_rq_map_sg(q, req, dev->sg);
}
req = dev->request;
sector = blk_rq_pos(req);
while(dev->start_sg < dev->end_sg){
struct scatterlist *sg = &dev->sg[dev->start_sg];
@ -1256,10 +1257,9 @@ static void do_ubd_request(struct request_queue *q)
return;
}
prepare_request(req, io_req,
(unsigned long long)sector << 9,
(unsigned long long)dev->rq_pos << 9,
sg->offset, sg->length, sg_page(sg));
sector += sg->length >> 9;
n = os_write_file(thread_fd, &io_req,
sizeof(struct io_thread_req *));
if(n != sizeof(struct io_thread_req *)){
@ -1272,6 +1272,7 @@ static void do_ubd_request(struct request_queue *q)
return;
}
dev->rq_pos += sg->length >> 9;
dev->start_sg++;
}
dev->end_sg = 0;

2
drivers/block/ps3disk.c
View File

@ -113,7 +113,7 @@ static void ps3disk_scatter_gather(struct ps3_storage_device *dev,
memcpy(buf, dev->bounce_buf+offset, size);
offset += size;
flush_kernel_dcache_page(bvec->bv_page);
bvec_kunmap_irq(bvec, &flags);
bvec_kunmap_irq(buf, &flags);
i++;
}
}