diff options
| author | Alex Elder <elder@inktank.com> | 2012-06-11 14:57:13 -0500 |
|---|---|---|
| committer | Xavier Boudet <x-boudet@ti.com> | 2012-11-27 09:35:55 +0100 |
| commit | cd589dfef6ca954190eba45c4fba44eb8ae060c5 (patch) | |
| tree | f2531507c5015a7a07f9d1bfc66dd5bf3509da8c /net | |
| parent | ce3f7cf2172c165ed926f3ed8cc711e5bc03d71f (diff) | |
libceph: don't use bio_iter as a flag
(cherry picked from commit abdaa6a849af1d63153682c11f5bbb22dacb1f6b)
Recently a bug was fixed in which the bio_iter field in a ceph
message was not being properly re-initialized when a message got
re-transmitted:
commit 43643528cce60ca184fe8197efa8e8da7c89a037
Author: Yan, Zheng <zheng.z.yan@intel.com>
rbd: Clear ceph_msg->bio_iter for retransmitted message
We are now only initializing the bio_iter field when we are about to
start to write message data (in prepare_write_message_data()),
rather than every time we are attempting to write any portion of the
message data (in write_partial_msg_pages()). This means we no
longer need to use the msg->bio_iter field as a flag.
So just don't do that any more. Trust prepare_write_message_data()
to ensure msg->bio_iter is properly initialized, every time we are
about to begin writing (or re-writing) a message's bio data.
Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Sage Weil <sage@inktank.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net')
| -rw-r--r-- | net/ceph/messenger.c | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c index 0c097b0dba9d..f0499fe069a5 100644 --- a/net/ceph/messenger.c +++ b/net/ceph/messenger.c @@ -604,7 +604,7 @@ static void prepare_write_message_data(struct ceph_connection *con) else con->out_msg_pos.page_pos = 0; #ifdef CONFIG_BLOCK - if (msg->bio && !msg->bio_iter) + if (msg->bio) init_bio_iter(msg->bio, &msg->bio_iter, &msg->bio_seg); #endif con->out_msg_pos.data_pos = 0; @@ -672,10 +672,6 @@ static void prepare_write_message(struct ceph_connection *con) m->hdr.seq = cpu_to_le64(++con->out_seq); m->needs_out_seq = false; } -#ifdef CONFIG_BLOCK - else - m->bio_iter = NULL; -#endif dout("prepare_write_message %p seq %lld type %d len %d+%d+%d %d pgs\n", m, con->out_seq, le16_to_cpu(m->hdr.type), |