diff options
| author | Alex Elder <elder@inktank.com> | 2013-03-07 22:38:26 +0100 |
|---|---|---|
| committer | Sage Weil <sage@inktank.com> | 2013-05-02 06:16:39 +0200 |
| commit | f1baeb2b9fc1c2c87ec02f1bf8cb88e108d4fbce (patch) | |
| tree | 5ca6b72adeeea2423367ea3313902cf61fd45980 /net | |
| parent | libceph: isolate message page field manipulation (diff) | |
| download | linux-f1baeb2b9fc1c2c87ec02f1bf8cb88e108d4fbce.tar.xz linux-f1baeb2b9fc1c2c87ec02f1bf8cb88e108d4fbce.zip | |
libceph: set page info with byte length
When setting page array information for message data, provide the
byte length rather than the page count ceph_msg_data_set_pages().
Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
Diffstat (limited to 'net')
| -rw-r--r-- | net/ceph/messenger.c | 4 | ||||
| -rw-r--r-- | net/ceph/osd_client.c | 14 |
2 files changed, 6 insertions, 12 deletions
diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c index cec39cb623f0..fc59fcc9be77 100644 --- a/net/ceph/messenger.c +++ b/net/ceph/messenger.c @@ -2690,13 +2690,13 @@ void ceph_con_keepalive(struct ceph_connection *con) EXPORT_SYMBOL(ceph_con_keepalive); void ceph_msg_data_set_pages(struct ceph_msg *msg, struct page **pages, - unsigned int page_count, size_t alignment) + size_t length, size_t alignment) { /* BUG_ON(msg->pages); */ /* BUG_ON(msg->page_count); */ msg->pages = pages; - msg->page_count = page_count; + msg->page_count = calc_pages_for((u64)alignment, (u64)length); msg->page_alignment = alignment & ~PAGE_MASK; } EXPORT_SYMBOL(ceph_msg_data_set_pages); diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c index a09d57134075..f29bedac7310 100644 --- a/net/ceph/osd_client.c +++ b/net/ceph/osd_client.c @@ -1758,12 +1758,9 @@ int ceph_osdc_start_request(struct ceph_osd_client *osdc, osd_data = &req->r_data_out; if (osd_data->type == CEPH_OSD_DATA_TYPE_PAGES) { - unsigned int page_count; - - page_count = calc_pages_for((u64)osd_data->alignment, - (u64)osd_data->length); + BUG_ON(osd_data->length > (u64) SIZE_MAX); ceph_msg_data_set_pages(req->r_request, osd_data->pages, - page_count, osd_data->alignment); + osd_data->length, osd_data->alignment); #ifdef CONFIG_BLOCK } else if (osd_data->type == CEPH_OSD_DATA_TYPE_BIO) { req->r_request->bio = osd_data->bio; @@ -2119,8 +2116,6 @@ static struct ceph_msg *get_reply(struct ceph_connection *con, struct ceph_osd_data *osd_data = &req->r_data_in; if (osd_data->type == CEPH_OSD_DATA_TYPE_PAGES) { - unsigned int page_count; - if (osd_data->pages && unlikely(osd_data->length < data_len)) { @@ -2132,10 +2127,9 @@ static struct ceph_msg *get_reply(struct ceph_connection *con, m = NULL; goto out; } - page_count = calc_pages_for((u64)osd_data->alignment, - (u64)osd_data->length); + BUG_ON(osd_data->length > (u64) SIZE_MAX); ceph_msg_data_set_pages(m, osd_data->pages, - osd_data->num_pages, osd_data->alignment); + osd_data->length, osd_data->alignment); #ifdef CONFIG_BLOCK } else if (osd_data->type == CEPH_OSD_DATA_TYPE_BIO) { m->bio = osd_data->bio; |