This is a note to let you know that I've just added the patch titled
ceph: messenger: rework prepare_connect_authorizer()
to the 3.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
0016-ceph-messenger-rework-prepare_connect_authorizer.patch
and it can be found in the queue-3.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From f184c9fd656b27adcb0a74069c8373a1759465d1 Mon Sep 17 00:00:00 2001
From: Alex Elder <[email protected]>
Date: Wed, 16 May 2012 15:16:38 -0500
Subject: ceph: messenger: rework prepare_connect_authorizer()
From: Alex Elder <[email protected]>
(cherry picked from commit b1c6b9803f5491e94041e6da96bc9dec3870e792)
Change prepare_connect_authorizer() so it returns without dropping
the connection mutex if the connection has no get_authorizer method.
Use the symbolic CEPH_AUTH_UNKNOWN instead of 0 when assigning
authorization protocols.
Signed-off-by: Alex Elder <[email protected]>
Reviewed-by: Sage Weil <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
net/ceph/messenger.c | 28 +++++++++++++++++++---------
1 file changed, 19 insertions(+), 9 deletions(-)
--- a/net/ceph/messenger.c
+++ b/net/ceph/messenger.c
@@ -656,19 +656,29 @@ static void prepare_write_keepalive(stru
static int prepare_connect_authorizer(struct ceph_connection *con)
{
void *auth_buf;
- int auth_len = 0;
- int auth_protocol = 0;
+ int auth_len;
+ int auth_protocol;
+
+ if (!con->ops->get_authorizer) {
+ con->out_connect.authorizer_protocol = CEPH_AUTH_UNKNOWN;
+ con->out_connect.authorizer_len = 0;
+
+ return 0;
+ }
+
+ /* Can't hold the mutex while getting authorizer */
mutex_unlock(&con->mutex);
- if (con->ops->get_authorizer)
- con->ops->get_authorizer(con, &auth_buf, &auth_len,
- &auth_protocol, &con->auth_reply_buf,
- &con->auth_reply_buf_len,
- con->auth_retry);
+
+ auth_buf = NULL;
+ auth_len = 0;
+ auth_protocol = CEPH_AUTH_UNKNOWN;
+ con->ops->get_authorizer(con, &auth_buf, &auth_len, &auth_protocol,
+ &con->auth_reply_buf, &con->auth_reply_buf_len,
+ con->auth_retry);
mutex_lock(&con->mutex);
- if (test_bit(CLOSED, &con->state) ||
- test_bit(OPENING, &con->state))
+ if (test_bit(CLOSED, &con->state) || test_bit(OPENING, &con->state))
return -EAGAIN;
con->out_connect.authorizer_protocol = cpu_to_le32(auth_protocol);
Patches currently in stable-queue which might be from [email protected] are
queue-3.4/0005-crush-fix-memory-leak-when-destroying-tree-buckets.patch
queue-3.4/0002-crush-adjust-local-retry-threshold.patch
queue-3.4/0018-ceph-define-ceph_auth_handshake-type.patch
queue-3.4/0011-ceph-messenger-reset-connection-kvec-caller.patch
queue-3.4/0019-ceph-messenger-reduce-args-to-create_authorizer.patch
queue-3.4/0015-ceph-messenger-check-prepare_write_connect-result.patch
queue-3.4/0003-crush-be-more-tolerant-of-nonsensical-crush-maps.patch
queue-3.4/0014-ceph-don-t-set-WRITE_PENDING-too-early.patch
queue-3.4/0016-ceph-messenger-rework-prepare_connect_authorizer.patch
queue-3.4/0013-ceph-drop-msgr-argument-from-prepare_write_connect.patch
queue-3.4/0009-ceph-messenger-change-read_partial-to-take-end-arg.patch
queue-3.4/0017-ceph-messenger-check-return-from-get_authorizer.patch
queue-3.4/0001-crush-clean-up-types-const-ness.patch
queue-3.4/0008-ceph-messenger-update-to-in-read_partial-caller.patch
queue-3.4/0007-ceph-messenger-use-read_partial-in-read_partial_mess.patch
queue-3.4/0010-libceph-don-t-reset-kvec-in-prepare_write_banner.patch
queue-3.4/0012-ceph-messenger-send-banner-in-process_connect.patch
queue-3.4/0004-crush-fix-tree-node-weight-lookup.patch
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