[SCM] Hurd branch, mplaneta/gsoc12/working, created. hurd-release-0-2-3362-geb9aa03

[Maksym Planeta]

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The branch, mplaneta/gsoc12/working has been created
        at  eb9aa030ba6e7f06f55069d4109c447c8478e8ec (commit)

- Log -----------------------------------------------------------------
commit eb9aa030ba6e7f06f55069d4109c447c8478e8ec
Author: Maksym Planeta <address@hidden>
Date:   Wed Jun 6 14:38:52 2012 +0300

    Update ext2fs according to new lippager interface.
    
    Comments will be later.

commit f278fd0c849065fada38c02d21ec0e63c66892fb
Author: Maksym Planeta <address@hidden>
Date:   Wed Jun 6 11:31:59 2012 +0300

    Change type of value that libpager callbacks return.
    
    * libpager/pager.h (pager_ops): Fields changed.

commit 5381ff9ca77b873c66887eb0e9c296626c99448f
Author: Maksym Planeta <address@hidden>
Date:   Mon Jun 4 22:55:04 2012 +0300

    Update tmpfs according to new lippager interface.
    
    * tmpfs/pager-stubs.c: Delete file with obsolete stubs.
    
    * tmpfs/Makefile (SRCS): Remove pager-stubs.c.

commit 665fe2334247c17f915161a5bffcd4dbf6ac3b12
Author: Maksym Planeta <address@hidden>
Date:   Mon Jun 4 22:48:30 2012 +0300

    Update libdiskfs according to new lippager interface.
    
    * libdiskfs/disk-pager.c (diskfs_start_disk_pager): Take structure of pager
    operations and take size of user pager info structure instead of its
    pointer. Change utilization of libpager according to new calling
    conventions.
    
    * libdiskfs/diskfs-pager.h (diskfs_start_disk_pager): Change function
    interface.

commit e45fa01a54e449e84405fe57e41f66a331e891f8
Author: Neal H Walfield <address@hidden>
Date:   Wed Apr 10 17:47:58 2002 -0400

    Reworking libpager
    
    * pager.h (struct pager): Bring into scope. (struct
     pager_ops): New structure.  Contains the call backs: read,
     write, unlock, report_extent, clear_user_data and dropweak.
     Replaces the linker-time call backs: pager_read_page,
     pager_write_page, pager_unlock_page, pager_report_extenet,
     pager_clear_user_data and pager_drop_weak.  Functions now
     also have a multipage interface and take block, not byte,
     offsets (i.e. off_t's, not vm_address_t's).
    
    (pager_cleate): Take a struct pager_ops to support new interface.
    Take the size of the desired user_page_info structure rather than
    a user_pager_info structure to correspond with the new semantics.
    
    (pager_get_error): Follow new semantics: take the page number
    rather than a byte offset.
    (pager_sync_come): Likewise.
    (pager_flush_come): Likewise.
    (pager_return_some): Likewise.
    (pager_memcpy): Likewise.
    
    (pager_offset_page): Remove obsolete function.
    (pager_read_page): Removed in favor of call back in struct
    pager_ops.
    (pager_write_page): Likewise.
    (pager_unlock_page): Likewise.
    (pager_report_extent): Likewise.
    (pager_clear_user_data): Likewise.
    (pager_dropweak): Likewise.
    
    (pager_data_supply): New function.
    (pager_data_unavailable): Likewise.
    (pager_data_read_error): Likewise.
    (pager_data_write_error): Likewise.
    (pager_data_unlock): Likewise.
    (pager_data_unlock_error): Likewise.
    
    * priv.h (struct pager): Change UPI from a struct user_pager_info
    to a flex array at the end of the structure to match the new
    pager_create semantics.  Add the pager_ops call back structure.
    
    (PM_PAGEINWAIT): Macro no longer used.
    (PM_WRITEWAIT): Adjust value.
    (PM_INIT): Likewise.
    (PM_INCORE): Likewise.
    (PM_PAGINGOUT): Likewise.
    
    (_pager_pagemap_resize): Take a block offset, not a byte-offset.
    (_pager_mark_next_request_error): Likewise.
    (_pager_mark_object_error): Likewise.
    (_pager_lock_object): Likewise.  P->interlock is now expected to
    already be held during the call.
    
    * data-return.c (_pager_do_write_request) Remove obsolete
    function.
    
    * data-return.c (_pager_seqnos_memory_object_data_return):
    Rewritten to work with the new paging interface.
    * data-request.c (_pager_seqnos_memory_object_data_request):
    Likewise.
    * data-unlock.c (_pager_seqnos_memory_object_data_unlock):
    Likewise.
    
    * clean.c (_pager_clean): Use the new call backs in P->ops.
    * dropweak.c (_pager_real_dropweak): Likewise.
    
    * lock-completed.c (_pager_seqnos_memory_object_lock_completed):
    Handle page offsets and not byte offsets.
    * lock-object.c (_pager_lock_object): Handle page offsets and not
    byte offsets. As per the new interface, do not lock P->interlock
    anymore.
    * mark-error.c (_pager_mark_next_request_error): Handle page
    offsets and not byte offsets. Use vm_page_size, not
    __vm_page_size. Doc fix.
    (_pager_mark_object_error): Likewise.
    (pager_get_error): Likewise.
    
    * pagemap.c (VMCOPY_BETTER_THAN_MEMCPY): New macro.
    (_pager_pagemap_resize): Handle page offsets and not byte
    offsets. Use vm_page_size, not __vm_page_size.  Allocate the
    minimum number of pages.  Check the result of mmap against
    MAP_FAILED, not -1.  Use mempcy, not bcopy.  Use vm_copy when
    appropriate.
    
    * object-init.c (_pager_seqnos_memory_object_init): Use
    vm_page_size, not __vm_page_size.  Check the result of malloc.
    
    * pager-attr.c (pager_change_attributes): Correct a typo.  Add an
    assert.
    
    * pager-create.c (pager_create): Comform to the new semantics as
    outlined in the pager.h changelog entry.
    
    * pager-flush.c (pager_flush): Use the new call backs in P->ops.
    Handle page offsets, not byte offsets.  Call the corresponding
    _some function rather than copy the code.
    * pager-return.c (pager_return): Likewise.
    * pager-sync.c (pager_sync): Likewise.
    
    * pager-flush.c (pager_flush_some): Handle page offsets and not
    byte offsets.  Lock P->interlock around _pager_lock_object as per
    the new semantics.
    * pager-return.c (pager_return_some): Likewise.
    * pager-sync.c (pager_sync_some: Likewise.
    
    * pager-memcpy.c (pager_memcpy): Pass the pager offset, not the
    byte offset to _pager_get_error.  Change OFFSET to an off_t rather
    than a vm_address_t as per the new semantics.
    
    * Makefile (SRCS): Remove offer-pager.c.  Add
    pager-data-read-error.c pager-data-unavailable.c
    pager-data-unlock.c pager-data-supply.c pager-data-unlock-error.c
    pager-data-write-error.c.
    
    * offer-page.c: Remove obsolete files.
    * pager-data-read-error.c: New file.
    * pager-data-supply.c: Likewise.
    * pager-data-unavailable.c: Likewise.
    * pager-data-unlock-error.c: Likewise.
    * pager-data-unlock.c: Likewise.
    * pager-data-write-error.c: Likewise.

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