[SCM] Hurd branch, master, updated. v0.5-497-g9cd99ff

[Justus Winter]

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       via  b3fcdc50024b3837a76cd854d02a940dac2e5dc3 (commit)
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- Log -----------------------------------------------------------------
commit 9cd99ff80c3c129ed137e0d22b7e438f292e5e8f
Author: Justus Winter <address@hidden>
Date:   Sun Nov 23 20:13:30 2014 +0100

    libdiskfs: fix fabrication of protid
    
    * libdiskfs/dir-init.c (diskfs_init_dir): Fix fabrication of protid.

commit b3fcdc50024b3837a76cd854d02a940dac2e5dc3
Author: Justus Winter <address@hidden>
Date:   Sun Nov 23 18:11:30 2014 +0100

    libpager: make the request queue more memory-efficient
    
    Previously, `pager_demuxer' allocated a chunk of memory for the
    response message.  But if memory gets scarce, the kernel will issue a
    large number of paging requests to free up memory.  In such a
    situation, allocating memory is dangerous.
    
    Fix this by not allocating space for the response message, rather, use
    a chunk of the workers stack space.  Also, we only handle the `notify'
    and `memory_object' protocol, which both only contain simple routines,
    we only need a `mig_response_header_t'.
    
    * libpager/demuxer.c (struct request): Remove `inp' and `outp'.
    (request_inp): New function.
    (pager_demuxer): Do not allocate memory for the response.
    (mig_reply_setup): New function.
    (worker_func): Adjust accordingly.

-----------------------------------------------------------------------

Summary of changes:
 libdiskfs/dir-init.c |    3 +-
 libpager/demuxer.c   |   66 +++++++++++++++++++++++++++++++++++++-------------
 2 files changed, 51 insertions(+), 18 deletions(-)


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