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libceph: add, don't set data for a message

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Change the names of the functions that put data on a pagelist to
reflect that we're adding to whatever's already there rather than
just setting it to the one thing.  Currently only one data item is
ever added to a message, but that's about to change.

This resolves:
    http://tracker.ceph.com/issues/2770

Signed-off-by: Alex Elder <[email protected]>
Reviewed-by: Josh Durgin <[email protected]>
This commit is contained in:
Alex Elder 2013-04-05 14:46:01 -05:00 • committed by Sage Weil
commit 90af36022a
4 changed files with 19 additions and 19 deletions
Download patch file Download diff file Expand all files Collapse all files

12
net/ceph/messenger.c
View file

@ -3005,7 +3005,7 @@ static void ceph_msg_data_destroy(struct ceph_msg_data *data)
kfree(data);
}
void ceph_msg_data_set_pages(struct ceph_msg *msg, struct page **pages,
void ceph_msg_data_add_pages(struct ceph_msg *msg, struct page **pages,
size_t length, size_t alignment)
{
struct ceph_msg_data *data;
@ -3023,9 +3023,9 @@ void ceph_msg_data_set_pages(struct ceph_msg *msg, struct page **pages,
list_add_tail(&data->links, &msg->data);
msg->data_length += length;
}
EXPORT_SYMBOL(ceph_msg_data_set_pages);
EXPORT_SYMBOL(ceph_msg_data_add_pages);
void ceph_msg_data_set_pagelist(struct ceph_msg *msg,
void ceph_msg_data_add_pagelist(struct ceph_msg *msg,
struct ceph_pagelist *pagelist)
{
struct ceph_msg_data *data;
@ -3040,10 +3040,10 @@ void ceph_msg_data_set_pagelist(struct ceph_msg *msg,
list_add_tail(&data->links, &msg->data);
msg->data_length += pagelist->length;
}
EXPORT_SYMBOL(ceph_msg_data_set_pagelist);
EXPORT_SYMBOL(ceph_msg_data_add_pagelist);
#ifdef CONFIG_BLOCK
void ceph_msg_data_set_bio(struct ceph_msg *msg, struct bio *bio,
void ceph_msg_data_add_bio(struct ceph_msg *msg, struct bio *bio,
size_t length)
{
struct ceph_msg_data *data;
@ -3058,7 +3058,7 @@ void ceph_msg_data_set_bio(struct ceph_msg *msg, struct bio *bio,
list_add_tail(&data->links, &msg->data);
msg->data_length += length;
}
EXPORT_SYMBOL(ceph_msg_data_set_bio);
EXPORT_SYMBOL(ceph_msg_data_add_bio);
#endif /* CONFIG_BLOCK */
/*

16
net/ceph/osd_client.c
View file

@ -550,7 +550,7 @@ void osd_req_op_watch_init(struct ceph_osd_request *osd_req,
}
EXPORT_SYMBOL(osd_req_op_watch_init);
static void ceph_osdc_msg_data_set(struct ceph_msg *msg,
static void ceph_osdc_msg_data_add(struct ceph_msg *msg,
struct ceph_osd_data *osd_data)
{
u64 length = ceph_osd_data_length(osd_data);
@ -558,14 +558,14 @@ static void ceph_osdc_msg_data_set(struct ceph_msg *msg,
if (osd_data->type == CEPH_OSD_DATA_TYPE_PAGES) {
BUG_ON(length > (u64) SIZE_MAX);
if (length)
ceph_msg_data_set_pages(msg, osd_data->pages,
ceph_msg_data_add_pages(msg, osd_data->pages,
length, osd_data->alignment);
} else if (osd_data->type == CEPH_OSD_DATA_TYPE_PAGELIST) {
BUG_ON(!length);
ceph_msg_data_set_pagelist(msg, osd_data->pagelist);
ceph_msg_data_add_pagelist(msg, osd_data->pagelist);
#ifdef CONFIG_BLOCK
} else if (osd_data->type == CEPH_OSD_DATA_TYPE_BIO) {
ceph_msg_data_set_bio(msg, osd_data->bio, length);
ceph_msg_data_add_bio(msg, osd_data->bio, length);
#endif
} else {
BUG_ON(osd_data->type != CEPH_OSD_DATA_TYPE_NONE);
@ -600,18 +600,18 @@ static u64 osd_req_encode_op(struct ceph_osd_request *req,
dst->extent.truncate_seq =
cpu_to_le32(src->extent.truncate_seq);
if (src->op == CEPH_OSD_OP_WRITE)
ceph_osdc_msg_data_set(req->r_request,
ceph_osdc_msg_data_add(req->r_request,
&src->extent.osd_data);
else
ceph_osdc_msg_data_set(req->r_reply,
ceph_osdc_msg_data_add(req->r_reply,
&src->extent.osd_data);
break;
case CEPH_OSD_OP_CALL:
dst->cls.class_len = src->cls.class_len;
dst->cls.method_len = src->cls.method_len;
dst->cls.indata_len = cpu_to_le32(src->cls.request_data_len);
ceph_osdc_msg_data_set(req->r_reply, &src->cls.response_data);
ceph_osdc_msg_data_set(req->r_request, &src->cls.request_info);
ceph_osdc_msg_data_add(req->r_reply, &src->cls.response_data);
ceph_osdc_msg_data_add(req->r_request, &src->cls.request_info);
BUG_ON(src->cls.request_info.type !=
CEPH_OSD_DATA_TYPE_PAGELIST);
request_data_len = src->cls.request_info.pagelist->length;