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libceph: separate osd request data info

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Pull the fields in an osd request structure that define the data for
the request out into a separate structure.

Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
This commit is contained in:
Alex Elder
2013-02-14 12:16:43 -06:00
committed by Sage Weil
parent 153e5167e0
commit 2794a82a11
5 changed files with 74 additions and 65 deletions
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44
net/ceph/osd_client.c
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@@ -122,9 +122,9 @@ void ceph_osdc_release_request(struct kref *kref)
}
if (req->r_reply)
ceph_msg_put(req->r_reply);
if (req->r_own_pages)
ceph_release_page_vector(req->r_pages,
req->r_num_pages);
if (req->r_data.own_pages)
ceph_release_page_vector(req->r_data.pages,
req->r_data.num_pages);
ceph_put_snap_context(req->r_snapc);
ceph_pagelist_release(&req->r_trail);
if (req->r_mempool)
@@ -1739,11 +1739,11 @@ int ceph_osdc_start_request(struct ceph_osd_client *osdc,
{
int rc = 0;
req->r_request->pages = req->r_pages;
req->r_request->page_count = req->r_num_pages;
req->r_request->page_alignment = req->r_page_alignment;
req->r_request->pages = req->r_data.pages;
req->r_request->page_count = req->r_data.num_pages;
req->r_request->page_alignment = req->r_data.alignment;
#ifdef CONFIG_BLOCK
req->r_request->bio = req->r_bio;
req->r_request->bio = req->r_data.bio;
#endif
req->r_request->trail = &req->r_trail;
@@ -1944,12 +1944,12 @@ int ceph_osdc_readpages(struct ceph_osd_client *osdc,
return PTR_ERR(req);
/* it may be a short read due to an object boundary */
req->r_pages = pages;
req->r_num_pages = calc_pages_for(page_align, *plen);
req->r_page_alignment = page_align;
req->r_data.pages = pages;
req->r_data.num_pages = calc_pages_for(page_align, *plen);
req->r_data.alignment = page_align;
dout("readpages final extent is %llu~%llu (%d pages align %d)\n",
off, *plen, req->r_num_pages, page_align);
off, *plen, req->r_data.num_pages, page_align);
rc = ceph_osdc_start_request(osdc, req, false);
if (!rc)
@@ -1987,10 +1987,10 @@ int ceph_osdc_writepages(struct ceph_osd_client *osdc, struct ceph_vino vino,
return PTR_ERR(req);
/* it may be a short write due to an object boundary */
req->r_pages = pages;
req->r_num_pages = calc_pages_for(page_align, len);
req->r_page_alignment = page_align;
dout("writepages %llu~%llu (%d pages)\n", off, len, req->r_num_pages);
req->r_data.pages = pages;
req->r_data.num_pages = calc_pages_for(page_align, len);
req->r_data.alignment = page_align;
dout("writepages %llu~%llu (%d pages)\n", off, len, req->r_data.num_pages);
rc = ceph_osdc_start_request(osdc, req, true);
if (!rc)
@@ -2083,22 +2083,22 @@ static struct ceph_msg *get_reply(struct ceph_connection *con,
m = ceph_msg_get(req->r_reply);
if (data_len > 0) {
int want = calc_pages_for(req->r_page_alignment, data_len);
int want = calc_pages_for(req->r_data.alignment, data_len);
if (req->r_pages && unlikely(req->r_num_pages < want)) {
if (req->r_data.pages && unlikely(req->r_data.num_pages < want)) {
pr_warning("tid %lld reply has %d bytes %d pages, we"
" had only %d pages ready\n", tid, data_len,
want, req->r_num_pages);
want, req->r_data.num_pages);
*skip = 1;
ceph_msg_put(m);
m = NULL;
goto out;
}
m->pages = req->r_pages;
m->page_count = req->r_num_pages;
m->page_alignment = req->r_page_alignment;
m->pages = req->r_data.pages;
m->page_count = req->r_data.num_pages;
m->page_alignment = req->r_data.alignment;
#ifdef CONFIG_BLOCK
m->bio = req->r_bio;
m->bio = req->r_data.bio;
#endif
}
*skip = 0;