This patch will clean a dirty page buffer if a reconnect occurs. If a page
buffer was half transmitted we cannot start inside the middle of a dlm
message if a node connects again. I observed invalid length receptions
errors and was guessing that this behaviour occurs, after this patch I
never saw a
This patch adds functionality to debug midcomms per connection state
inside a comms directory which is similar like dlm configfs. Currently
there exists the possibility to read out two attributes which is the
send queue counter and the version of each midcomms node state.
Signed-off-by: Alexander
This patch introduces a retransmit functionality for a lowcomms message
handle. It's just allocates a new buffer and transmit it again, no
special handling about prioritize it because keeping bytestream in order.
To avoid another connection look some refactor was done to make a new
buffer allocati
This patch allows to use header_out() and header_in() outside of dlm
util functionality.
Signed-off-by: Alexander Aring
---
fs/dlm/util.c | 4 ++--
fs/dlm/util.h | 2 ++
2 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/fs/dlm/util.c b/fs/dlm/util.c
index cfd0d00b19ae..74a8c5bfe9b5
This patch introduce to make a tcp lowcomms connection reliable even if
reconnects occurs. This is done by an application layer re-transmission
handling and sequence numbers in dlm protocols. There are three new dlm
commands:
DLM_OPTS:
This will encapsulate an existing dlm message (and rcom messa
This patch adds union inside the lockspace id to handle it also for
another use case for a different dlm command.
Signed-off-by: Alexander Aring
---
fs/dlm/dlm_internal.h | 5 -
fs/dlm/lock.c | 8
fs/dlm/rcom.c | 4 ++--
fs/dlm/util.c | 6 --
4 files chan
This patch moves out some lowcomms hash functionality into lowcomms
header to provide them to other layers like midcomms as well.
Signed-off-by: Alexander Aring
---
fs/dlm/lowcomms.c | 9 -
fs/dlm/lowcomms.h | 10 ++
2 files changed, 10 insertions(+), 9 deletions(-)
diff --git
This patch makes the void pointer handle for lowcomms functionality per
message and not per page allocation entry. A refcount handling for the
handle was added to keep the message alive until the user doesn't need
it anymore.
There exists now a per message callback which will be called when
alloca
This patch prepares hooks to redirect to the midcomms layer which will
be used by the midcomms re-transmit handling.
There exists the new concept of stateless buffers allocation and
commits. This can be used to bypass the midcomms re-transmit handling. It
is used by RCOM_STATUS and RCOM_NAMES mess
These rx tx flags arguments are for signaling close_connection() from
which worker they are called. Obviously the receive worker cannot cancel
itself and vice versa for swork. For the othercon the receive worker
should only be used, however to avoid deadlocks we should pass the same
flags as the or
There is a is othercon flag which is never used, this patch will set it
and printout a warning if the othercon ever sends a dlm message which
should never be the case.
Signed-off-by: Alexander Aring
---
fs/dlm/lowcomms.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/fs/dlm/lowcomms.c b/
This patch fixes the EOF handling for TCP that if and EOF is received we
will close the socket next time the writequeue runs empty. This is a
half-closed socket functionality which doesn't exists in SCTP. The
midcomms layer will do a half closed socket functionality on DLM side to
solve this proble
This patch add ratelimit macro to dlm subsystem and will set the
connecting log message to ratelimit. In non blocking connecting cases it
will print out this message a lot.
Signed-off-by: Alexander Aring
---
fs/dlm/dlm_internal.h | 2 ++
fs/dlm/lowcomms.c | 4 ++--
2 files changed, 4 inserti
This patch will change the reconnect handling that if an error occurs
if a socket error callback is occurred. This will also handle reconnects
in a non blocking connecting case which is currently missing. If error
ECONNREFUSED is reported we delay the reconnect by one second.
Signed-off-by: Alexan
Hi,
this is the final patch-series to make dlm reliable when re-connection
occurs. You can easily generate a couple of re-connections by running:
tcpkill -9 -i $IFACE port 21064
on your own to test these patches. At some time dlm will detect message
drops and will re-transmit messages if necessa
This patch holds the srcu connection read lock in cases where we lookup
the connections and accessing it. We don't hold the srcu lock in workers
function where the scheduled worker is part of the connection itself.
The connection should not be freed if any worker is scheduled or
pending.
Signed-of
This patch changes the ping_members() result that we always run
complete() for possible waiters. We handle the -EINTR error code as
successful. This error code is returned if the recovery is stopped which
is likely that a new recovery is triggered with a new members
configuration and ping_members()
On Fri, May 21, 2021 at 5:23 PM Jan Kara wrote:
> On Thu 20-05-21 16:07:56, Andreas Gruenbacher wrote:
> > On Thu, May 20, 2021 at 3:30 PM Jan Kara wrote:
> > > On Thu 20-05-21 14:25:36, Andreas Gruenbacher wrote:
> > > > Now that we handle self-recursion on the inode glock in gfs2_fault and
> >
On Thu 20-05-21 16:07:56, Andreas Gruenbacher wrote:
> On Thu, May 20, 2021 at 3:30 PM Jan Kara wrote:
> > On Thu 20-05-21 14:25:36, Andreas Gruenbacher wrote:
> > > Now that we handle self-recursion on the inode glock in gfs2_fault and
> > > gfs2_page_mkwrite, we need to take care of more complex
On Fri, 21 May 2021, Lee Jones wrote:
> On Fri, 21 May 2021, Andreas Gruenbacher wrote:
>
> > On Thu, May 20, 2021 at 2:00 PM Lee Jones wrote:
> > > Fixes the following W=1 kernel build warning(s):
> > >
> > > fs/gfs2/glock.c:365: warning: Function parameter or member 'gl' not
> > > described
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