Messages in this thread Patch in this message | ![/](/images/icornerl.gif) | | Date | Wed, 20 Dec 2006 22:22:15 -0500 | From | Mathieu Desnoyers <> | Subject | Re: [PATCH] Relay CPU Hotplug support |
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* Tom Zanussi (zanussi@us.ibm.com) wrote: > Mathieu Desnoyers writes: > > Hi, > > > > Here is a patch, result of the combined work of Tom Zanussi and myself, to add > > CPU hotplug support to Relay. > > > > This patch applies on 2.6.20-rc1-git7. > > > > Signed-off-by : Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> > > > > Hi Mathieu, > > It looks like you forgot to include the Documentation update with > this. Other than that, it looks fine to me. > > Acked-by: Tom Zanussi <zanussi@us.ibm.com> > >
Here is the missing part of the patch for documentation.
Thanks for pointing it out.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
--- a/Documentation/filesystems/relay.txt +++ b/Documentation/filesystems/relay.txt @@ -157,7 +157,7 @@ TBD(curr. line MT:/API/) channel management functions: relay_open(base_filename, parent, subbuf_size, n_subbufs, - callbacks) + callbacks, private_data) relay_close(chan) relay_flush(chan) relay_reset(chan) @@ -251,7 +251,7 @@ static struct rchan_callbacks relay_call And an example relay_open() invocation using them: - chan = relay_open("cpu", NULL, SUBBUF_SIZE, N_SUBBUFS, &relay_callbacks); + chan = relay_open("cpu", NULL, SUBBUF_SIZE, N_SUBBUFS, &relay_callbacks, NULL); If the create_buf_file() callback fails, or isn't defined, channel creation and thus relay_open() will fail. @@ -289,6 +289,11 @@ they use the proper locking for such a b writes in a spinlock, or by copying a write function from relay.h and creating a local version that internally does the proper locking. +The private_data passed into relay_open() allows clients to associate +user-defined data with a channel, and is immediately available +(including in create_buf_file()) via chan->private_data or +buf->chan->private_data. + Channel 'modes' ---------------
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