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authorAlex Elder <elder@inktank.com>2013-03-14 02:50:01 +0100
committerSage Weil <sage@inktank.com>2013-05-02 06:17:47 +0200
commita19dadfba91c73a12a666e6fdb9e242f325df825 (patch)
tree6c2c2e88254089740b8f05866b430cda5ce10fa0 /net/ceph
parentlibceph: pass offset and length out of calc_layout() (diff)
downloadlinux-a19dadfba91c73a12a666e6fdb9e242f325df825.tar.xz
linux-a19dadfba91c73a12a666e6fdb9e242f325df825.zip
libceph: don't update op in calc_layout()
The ceph_osdc_new_request() an array of osd operations is built up and filled in partially within that function and partially in the called function calc_layout(). Move the latter part back out to ceph_osdc_new_request() so it's all done in one place. This makes it unnecessary to pass the op pointer to calc_layout(), so get rid of that parameter. Signed-off-by: Alex Elder <elder@inktank.com> Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
Diffstat (limited to 'net/ceph')
-rw-r--r--net/ceph/osd_client.c36
1 files changed, 18 insertions, 18 deletions
diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c
index f782aca54daa..0eb417b44195 100644
--- a/net/ceph/osd_client.c
+++ b/net/ceph/osd_client.c
@@ -64,8 +64,7 @@ static int op_has_extent(int op)
* fill osd op in request message.
*/
static int calc_layout(struct ceph_file_layout *layout, u64 off, u64 *plen,
- struct ceph_osd_req_op *op, u64 *objnum,
- u64 *objoff, u64 *objlen)
+ u64 *objnum, u64 *objoff, u64 *objlen)
{
u64 orig_len = *plen;
int r;
@@ -81,21 +80,6 @@ static int calc_layout(struct ceph_file_layout *layout, u64 off, u64 *plen,
orig_len - *plen, off, *plen);
}
- if (op_has_extent(op->op)) {
- u32 osize = le32_to_cpu(layout->fl_object_size);
- op->extent.offset = *objoff;
- op->extent.length = *objlen;
- if (op->extent.truncate_size <= off - *objoff) {
- op->extent.truncate_size = 0;
- } else {
- op->extent.truncate_size -= off - *objoff;
- if (op->extent.truncate_size > osize)
- op->extent.truncate_size = osize;
- }
- }
- if (op->op == CEPH_OSD_OP_WRITE)
- op->payload_len = *plen;
-
dout("calc_layout objnum=%llx %llu~%llu\n", *objnum, *objoff, *objlen);
return 0;
@@ -594,11 +578,27 @@ struct ceph_osd_request *ceph_osdc_new_request(struct ceph_osd_client *osdc,
req->r_flags = flags;
/* calculate max write size */
- r = calc_layout(layout, off, plen, ops, &objnum, &objoff, &objlen);
+ r = calc_layout(layout, off, plen, &objnum, &objoff, &objlen);
if (r < 0) {
ceph_osdc_put_request(req);
return ERR_PTR(r);
}
+
+ if (op_has_extent(ops[0].op)) {
+ u32 osize = le32_to_cpu(layout->fl_object_size);
+ ops[0].extent.offset = objoff;
+ ops[0].extent.length = objlen;
+ if (ops[0].extent.truncate_size <= off - objoff) {
+ ops[0].extent.truncate_size = 0;
+ } else {
+ ops[0].extent.truncate_size -= off - objoff;
+ if (ops[0].extent.truncate_size > osize)
+ ops[0].extent.truncate_size = osize;
+ }
+ }
+ if (ops[0].op == CEPH_OSD_OP_WRITE)
+ ops[0].payload_len = *plen;
+
req->r_file_layout = *layout; /* keep a copy */
snprintf(req->r_oid, sizeof(req->r_oid), "%llx.%08llx",