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-   -   dm-kcopyd: remove "offset" field from job structure (http://www.linux-archive.org/device-mapper-development/534251-dm-kcopyd-remove-offset-field-job-structure.html)

Mikulas Patocka 06-02-2011 07:17 PM

dm-kcopyd: remove "offset" field from job structure
 
dm-kcopyd: remove "offset" field from job structure

The field is always zero.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>

---
drivers/md/dm-kcopyd.c | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)

Index: linux-2.6.39-fast/drivers/md/dm-kcopyd.c
================================================== =================
--- linux-2.6.39-fast.orig/drivers/md/dm-kcopyd.c 2011-06-02 21:06:10.000000000 +0200
+++ linux-2.6.39-fast/drivers/md/dm-kcopyd.c 2011-06-02 21:06:58.000000000 +0200
@@ -309,7 +309,6 @@ struct kcopyd_job {
unsigned int num_dests;
struct dm_io_region dests[DM_KCOPYD_MAX_REGIONS];

- sector_t offset;
unsigned int nr_pages;
struct page_list *pages;

@@ -464,7 +463,7 @@ static int run_io_job(struct kcopyd_job
.bi_rw = job->rw,
.mem.type = DM_IO_PAGE_LIST,
.mem.ptr.pl = job->pages,
- .mem.offset = job->offset,
+ .mem.offset = 0,
.notify.fn = complete_io,
.notify.context = job,
.client = job->kc->io_client,
@@ -484,8 +483,7 @@ static int run_pages_job(struct kcopyd_j
{
int r;

- job->nr_pages = dm_div_up(job->dests[0].count + job->offset,
- PAGE_SIZE >> 9);
+ job->nr_pages = dm_div_up(job->dests[0].count, PAGE_SIZE >> 9);
r = kcopyd_get_pages(job->kc, job->nr_pages, &job->pages);
if (!r) {
/* this job is ready for io */
@@ -689,7 +687,6 @@ int dm_kcopyd_copy(struct dm_kcopyd_clie
job->num_dests = num_dests;
memcpy(&job->dests, dests, sizeof(*dests) * num_dests);

- job->offset = 0;
job->nr_pages = 0;
job->pages = NULL;


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