* [Cluster-devel] [PATCH] dlm: fix cross-platform error values @ 2008-01-14 13:14 Patrick Caulfeld 2008-01-15 5:02 ` Fabio M. Di Nitto 2008-01-15 6:15 ` Fabio M. Di Nitto 0 siblings, 2 replies; 4+ messages in thread From: Patrick Caulfeld @ 2008-01-14 13:14 UTC (permalink / raw) To: cluster-devel.redhat.com Some errno values differ across platforms. So if we return things like -EINPROGRESS from one node it can get misinterpreted or rejected on another one. This patch fixes up the errno values passed on the wire so that they match the x86 ones (so as not to break the protocol), and re-instates the platform-specific ones at the other end. Many thanks to Fabio for testing this patch. Signed-Off-By: Patrick Caulfield <pcaulfie at redhat.com Signed-off-by: Fabio M. Di Nitto <fabbione@ubuntu.com> -------------- next part -------------- A non-text attachment was scrubbed... Name: dlm_errno.patch Type: text/x-patch Size: 1788 bytes Desc: not available URL: <http://listman.redhat.com/archives/cluster-devel/attachments/20080114/cdfe0b30/attachment.bin> ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Cluster-devel] [PATCH] dlm: fix cross-platform error values 2008-01-14 13:14 [Cluster-devel] [PATCH] dlm: fix cross-platform error values Patrick Caulfeld @ 2008-01-15 5:02 ` Fabio M. Di Nitto 2008-01-15 6:15 ` Fabio M. Di Nitto 1 sibling, 0 replies; 4+ messages in thread From: Fabio M. Di Nitto @ 2008-01-15 5:02 UTC (permalink / raw) To: cluster-devel.redhat.com Hi Steven, please put this patch on hold as I found more cases similar to those that need the same addressing. Thanks Fabio On Mon, 14 Jan 2008, Patrick Caulfeld wrote: > Some errno values differ across platforms. So if we return things like > -EINPROGRESS from one node it can get misinterpreted or rejected on > another one. > > This patch fixes up the errno values passed on the wire so that they > match the x86 ones (so as not to break the protocol), and re-instates > the platform-specific ones at the other end. > > Many thanks to Fabio for testing this patch. > > Signed-Off-By: Patrick Caulfield <pcaulfie@redhat.com > Signed-off-by: Fabio M. Di Nitto <fabbione@ubuntu.com> > -- I'm going to make him an offer he can't refuse. ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Cluster-devel] [PATCH] dlm: fix cross-platform error values 2008-01-14 13:14 [Cluster-devel] [PATCH] dlm: fix cross-platform error values Patrick Caulfeld 2008-01-15 5:02 ` Fabio M. Di Nitto @ 2008-01-15 6:15 ` Fabio M. Di Nitto 2008-01-15 8:48 ` Steven Whitehouse 1 sibling, 1 reply; 4+ messages in thread From: Fabio M. Di Nitto @ 2008-01-15 6:15 UTC (permalink / raw) To: cluster-devel.redhat.com Hi guys, On Mon, 14 Jan 2008, Patrick Caulfeld wrote: > Some errno values differ across platforms. So if we return things like > -EINPROGRESS from one node it can get misinterpreted or rejected on > another one. > > This patch fixes up the errno values passed on the wire so that they > match the x86 ones (so as not to break the protocol), and re-instates > the platform-specific ones at the other end. > > Many thanks to Fabio for testing this patch. > > Signed-Off-By: Patrick Caulfield <pcaulfie@redhat.com > Signed-off-by: Fabio M. Di Nitto <fabbione@ubuntu.com> > while doing some more testing in strange situations, i noticed that we had more values going down the pipe. This patch (based on Patrick's one) makes absolutely sure that all the -E we use around fs/dlm/* are converted before hitting the wire. Mostlikely not even half of them will go that far, but it's easier to catch them all than finding them one at a time. values and switch/case are also sorted in ascending order for pure consistency paranoia. Signed-off-by: Fabio M. Di Nitto <fabbione@ubuntu.com> Thanks Fabio diff --git a/fs/dlm/dlm_internal.h b/fs/dlm/dlm_internal.h index ec61bba..d0de852 100644 --- a/fs/dlm/dlm_internal.h +++ b/fs/dlm/dlm_internal.h @@ -220,6 +220,27 @@ struct dlm_args { #define DLM_IFL_USER 0x00000001 #define DLM_IFL_ORPHAN 0x00000002 + +/* arch-independant errno values */ + +#define DLM_ERRNO_EDEADLK 35 +#define DLM_ERRNO_EBADE 52 +#define DLM_ERRNO_EBADR 53 +#define DLM_ERRNO_EBADSLT 57 +#define DLM_ERRNO_EPROTO 71 +#define DLM_ERRNO_EBADMSG 74 +#define DLM_ERRNO_EPROTONOSUPPORT 93 +#define DLM_ERRNO_EOPNOTSUPP 95 +#define DLM_ERRNO_EADDRINUSE 98 +#define DLM_ERRNO_ENETDOWN 100 +#define DLM_ERRNO_ENETUNREACH 101 +#define DLM_ERRNO_ECONNABORTED 103 +#define DLM_ERRNO_ENOBUFS 105 +#define DLM_ERRNO_ENOTCONN 107 +#define DLM_ERRNO_ETIMEDOUT 110 +#define DLM_ERRNO_EHOSTUNREACH 113 +#define DLM_ERRNO_EINPROGRESS 115 + struct dlm_lkb { struct dlm_rsb *lkb_resource; /* the rsb */ struct kref lkb_ref; diff --git a/fs/dlm/util.c b/fs/dlm/util.c index 963889c..e0f0ad4 100644 --- a/fs/dlm/util.c +++ b/fs/dlm/util.c @@ -36,6 +36,61 @@ void dlm_message_out(struct dlm_message *ms) header_out(hd); + /* Use arch-independant errno values on the wire */ + switch (ms->m_result) { + case -EDEADLK: + ms->m_result = -DLM_ERRNO_EDEADLK; + break; + case -EBADE: + ms->m_result = -DLM_ERRNO_EBADE; + break; + case -EBADR: + ms->m_result = -DLM_ERRNO_EBADR; + break; + case -EBADSLT: + ms->m_result = -DLM_ERRNO_EBADSLT; + break; + case -EPROTO: + ms->m_result = -DLM_ERRNO_EPROTO; + break; + case -EBADMSG: + ms->m_result = -DLM_ERRNO_EBADMSG; + break; + case -EPROTONOSUPPORT: + ms->m_result = -DLM_ERRNO_EPROTONOSUPPORT; + break; + case -EOPNOTSUPP: + ms->m_result = -DLM_ERRNO_EOPNOTSUPP; + break; + case -EADDRINUSE: + ms->m_result = -DLM_ERRNO_EADDRINUSE; + break; + case -ENETDOWN: + ms->m_result = -DLM_ERRNO_ENETDOWN; + break; + case -ENETUNREACH: + ms->m_result = -DLM_ERRNO_ENETUNREACH; + break; + case -ECONNABORTED: + ms->m_result = -DLM_ERRNO_ECONNABORTED; + break; + case -ENOBUFS: + ms->m_result = -DLM_ERRNO_ENOBUFS; + break; + case -ENOTCONN: + ms->m_result = -DLM_ERRNO_ENOTCONN; + break; + case -ETIMEDOUT: + ms->m_result = -DLM_ERRNO_ETIMEDOUT; + break; + case -EHOSTUNREACH: + ms->m_result = -DLM_ERRNO_EHOSTUNREACH; + break; + case -EINPROGRESS: + ms->m_result = -DLM_ERRNO_EINPROGRESS; + break; + } + ms->m_type = cpu_to_le32(ms->m_type); ms->m_nodeid = cpu_to_le32(ms->m_nodeid); ms->m_pid = cpu_to_le32(ms->m_pid); @@ -80,6 +135,60 @@ void dlm_message_in(struct dlm_message *ms) ms->m_bastmode = le32_to_cpu(ms->m_bastmode); ms->m_asts = le32_to_cpu(ms->m_asts); ms->m_result = le32_to_cpu(ms->m_result); + + switch (ms->m_result) { + case -DLM_ERRNO_EDEADLK: + ms->m_result = -EDEADLK; + break; + case -DLM_ERRNO_EBADE: + ms->m_result = -EBADE; + break; + case -DLM_ERRNO_EBADR: + ms->m_result = -EBADR; + break; + case -DLM_ERRNO_EBADSLT: + ms->m_result = -EBADSLT; + break; + case -DLM_ERRNO_EPROTO: + ms->m_result = -EPROTO; + break; + case -DLM_ERRNO_EBADMSG: + ms->m_result = -EBADMSG; + break; + case -DLM_ERRNO_EPROTONOSUPPORT: + ms->m_result = -EPROTONOSUPPORT; + break; + case -DLM_ERRNO_EOPNOTSUPP: + ms->m_result = -EOPNOTSUPP; + break; + case -DLM_ERRNO_EADDRINUSE: + ms->m_result = -EADDRINUSE; + break; + case -DLM_ERRNO_ENETDOWN: + ms->m_result = -ENETDOWN; + break; + case -DLM_ERRNO_ENETUNREACH: + ms->m_result = -ENETUNREACH; + break; + case -DLM_ERRNO_ECONNABORTED: + ms->m_result = -ECONNABORTED; + break; + case -DLM_ERRNO_ENOBUFS: + ms->m_result = -ENOBUFS; + break; + case -DLM_ERRNO_ENOTCONN: + ms->m_result = -ENOTCONN; + break; + case -DLM_ERRNO_ETIMEDOUT: + ms->m_result = -ETIMEDOUT; + break; + case -DLM_ERRNO_EHOSTUNREACH: + ms->m_result = -EHOSTUNREACH; + break; + case -DLM_ERRNO_EINPROGRESS: + ms->m_result = -EINPROGRESS; + break; + } } static void rcom_lock_out(struct rcom_lock *rl) -- I'm going to make him an offer he can't refuse. ^ permalink raw reply related [flat|nested] 4+ messages in thread
* [Cluster-devel] [PATCH] dlm: fix cross-platform error values 2008-01-15 6:15 ` Fabio M. Di Nitto @ 2008-01-15 8:48 ` Steven Whitehouse 0 siblings, 0 replies; 4+ messages in thread From: Steven Whitehouse @ 2008-01-15 8:48 UTC (permalink / raw) To: cluster-devel.redhat.com Hi, On Tue, 2008-01-15 at 07:15 +0100, Fabio M. Di Nitto wrote: > Hi guys, > > On Mon, 14 Jan 2008, Patrick Caulfeld wrote: > > > Some errno values differ across platforms. So if we return things like > > -EINPROGRESS from one node it can get misinterpreted or rejected on > > another one. > > > > This patch fixes up the errno values passed on the wire so that they > > match the x86 ones (so as not to break the protocol), and re-instates > > the platform-specific ones at the other end. > > > > Many thanks to Fabio for testing this patch. > > > > Signed-Off-By: Patrick Caulfield <pcaulfie@redhat.com > > Signed-off-by: Fabio M. Di Nitto <fabbione@ubuntu.com> > > > > while doing some more testing in strange situations, i noticed that we had > more values going down the pipe. > > This patch (based on Patrick's one) makes absolutely sure that all the -E > we use around fs/dlm/* are converted before hitting the wire. Mostlikely > not even half of them will go that far, but it's easier to catch them all > than finding them one at a time. > > values and switch/case are also sorted in ascending order for pure > consistency paranoia. > > Signed-off-by: Fabio M. Di Nitto <fabbione@ubuntu.com> > > Thanks > Fabio > Perhaps it would be worth creating a translation table rather than listing each value in a switch statement? Also I'd suggest to add a "default" so that you can catch any values that you didn't expect and BUG(); or something. That way if someone adds a new error value in the future, you'll catch it before it hits the wire, Steve. > diff --git a/fs/dlm/dlm_internal.h b/fs/dlm/dlm_internal.h > index ec61bba..d0de852 100644 > --- a/fs/dlm/dlm_internal.h > +++ b/fs/dlm/dlm_internal.h > @@ -220,6 +220,27 @@ struct dlm_args { > #define DLM_IFL_USER 0x00000001 > #define DLM_IFL_ORPHAN 0x00000002 > > + > +/* arch-independant errno values */ > + > +#define DLM_ERRNO_EDEADLK 35 > +#define DLM_ERRNO_EBADE 52 > +#define DLM_ERRNO_EBADR 53 > +#define DLM_ERRNO_EBADSLT 57 > +#define DLM_ERRNO_EPROTO 71 > +#define DLM_ERRNO_EBADMSG 74 > +#define DLM_ERRNO_EPROTONOSUPPORT 93 > +#define DLM_ERRNO_EOPNOTSUPP 95 > +#define DLM_ERRNO_EADDRINUSE 98 > +#define DLM_ERRNO_ENETDOWN 100 > +#define DLM_ERRNO_ENETUNREACH 101 > +#define DLM_ERRNO_ECONNABORTED 103 > +#define DLM_ERRNO_ENOBUFS 105 > +#define DLM_ERRNO_ENOTCONN 107 > +#define DLM_ERRNO_ETIMEDOUT 110 > +#define DLM_ERRNO_EHOSTUNREACH 113 > +#define DLM_ERRNO_EINPROGRESS 115 > + > struct dlm_lkb { > struct dlm_rsb *lkb_resource; /* the rsb */ > struct kref lkb_ref; > diff --git a/fs/dlm/util.c b/fs/dlm/util.c > index 963889c..e0f0ad4 100644 > --- a/fs/dlm/util.c > +++ b/fs/dlm/util.c > @@ -36,6 +36,61 @@ void dlm_message_out(struct dlm_message *ms) > > header_out(hd); > > + /* Use arch-independant errno values on the wire */ > + switch (ms->m_result) { > + case -EDEADLK: > + ms->m_result = -DLM_ERRNO_EDEADLK; > + break; > + case -EBADE: > + ms->m_result = -DLM_ERRNO_EBADE; > + break; > + case -EBADR: > + ms->m_result = -DLM_ERRNO_EBADR; > + break; > + case -EBADSLT: > + ms->m_result = -DLM_ERRNO_EBADSLT; > + break; > + case -EPROTO: > + ms->m_result = -DLM_ERRNO_EPROTO; > + break; > + case -EBADMSG: > + ms->m_result = -DLM_ERRNO_EBADMSG; > + break; > + case -EPROTONOSUPPORT: > + ms->m_result = -DLM_ERRNO_EPROTONOSUPPORT; > + break; > + case -EOPNOTSUPP: > + ms->m_result = -DLM_ERRNO_EOPNOTSUPP; > + break; > + case -EADDRINUSE: > + ms->m_result = -DLM_ERRNO_EADDRINUSE; > + break; > + case -ENETDOWN: > + ms->m_result = -DLM_ERRNO_ENETDOWN; > + break; > + case -ENETUNREACH: > + ms->m_result = -DLM_ERRNO_ENETUNREACH; > + break; > + case -ECONNABORTED: > + ms->m_result = -DLM_ERRNO_ECONNABORTED; > + break; > + case -ENOBUFS: > + ms->m_result = -DLM_ERRNO_ENOBUFS; > + break; > + case -ENOTCONN: > + ms->m_result = -DLM_ERRNO_ENOTCONN; > + break; > + case -ETIMEDOUT: > + ms->m_result = -DLM_ERRNO_ETIMEDOUT; > + break; > + case -EHOSTUNREACH: > + ms->m_result = -DLM_ERRNO_EHOSTUNREACH; > + break; > + case -EINPROGRESS: > + ms->m_result = -DLM_ERRNO_EINPROGRESS; > + break; > + } > + > ms->m_type = cpu_to_le32(ms->m_type); > ms->m_nodeid = cpu_to_le32(ms->m_nodeid); > ms->m_pid = cpu_to_le32(ms->m_pid); > @@ -80,6 +135,60 @@ void dlm_message_in(struct dlm_message *ms) > ms->m_bastmode = le32_to_cpu(ms->m_bastmode); > ms->m_asts = le32_to_cpu(ms->m_asts); > ms->m_result = le32_to_cpu(ms->m_result); > + > + switch (ms->m_result) { > + case -DLM_ERRNO_EDEADLK: > + ms->m_result = -EDEADLK; > + break; > + case -DLM_ERRNO_EBADE: > + ms->m_result = -EBADE; > + break; > + case -DLM_ERRNO_EBADR: > + ms->m_result = -EBADR; > + break; > + case -DLM_ERRNO_EBADSLT: > + ms->m_result = -EBADSLT; > + break; > + case -DLM_ERRNO_EPROTO: > + ms->m_result = -EPROTO; > + break; > + case -DLM_ERRNO_EBADMSG: > + ms->m_result = -EBADMSG; > + break; > + case -DLM_ERRNO_EPROTONOSUPPORT: > + ms->m_result = -EPROTONOSUPPORT; > + break; > + case -DLM_ERRNO_EOPNOTSUPP: > + ms->m_result = -EOPNOTSUPP; > + break; > + case -DLM_ERRNO_EADDRINUSE: > + ms->m_result = -EADDRINUSE; > + break; > + case -DLM_ERRNO_ENETDOWN: > + ms->m_result = -ENETDOWN; > + break; > + case -DLM_ERRNO_ENETUNREACH: > + ms->m_result = -ENETUNREACH; > + break; > + case -DLM_ERRNO_ECONNABORTED: > + ms->m_result = -ECONNABORTED; > + break; > + case -DLM_ERRNO_ENOBUFS: > + ms->m_result = -ENOBUFS; > + break; > + case -DLM_ERRNO_ENOTCONN: > + ms->m_result = -ENOTCONN; > + break; > + case -DLM_ERRNO_ETIMEDOUT: > + ms->m_result = -ETIMEDOUT; > + break; > + case -DLM_ERRNO_EHOSTUNREACH: > + ms->m_result = -EHOSTUNREACH; > + break; > + case -DLM_ERRNO_EINPROGRESS: > + ms->m_result = -EINPROGRESS; > + break; > + } > } > > static void rcom_lock_out(struct rcom_lock *rl) > > -- > I'm going to make him an offer he can't refuse. ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2008-01-15 8:48 UTC | newest] Thread overview: 4+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2008-01-14 13:14 [Cluster-devel] [PATCH] dlm: fix cross-platform error values Patrick Caulfeld 2008-01-15 5:02 ` Fabio M. Di Nitto 2008-01-15 6:15 ` Fabio M. Di Nitto 2008-01-15 8:48 ` Steven Whitehouse
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.