[SCM] Hurd branch, master, updated. hurd-release-0-2-3601-gea4802b

[Samuel Thibault]

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- Log -----------------------------------------------------------------
commit ea4802bc0975218544cb447df37b704f60ef2fde
Author: Richard Braun <address@hidden>
Date:   Fri May 3 19:56:51 2013 +0200

    Large store support for ext2fs
    
    This is a revised version of the large store patch for ext2fs, written
    by Ognyan Kulev. It provides support for stores larger than 2 GiB.
    
    * ext2fs/balloc.c: Use the new disk_cache_block_ref and 
disk_cache_block_deref
    functions to access blocks from the disk cache.
    * ext2fs/ext2fs.c (main): Update initialization call to pokel_init, and
    call map_hypermetadata instead of get_hypermetadata.
    * ext2fs/ext2fs.h: Include <hurd/store.h> and <hurd/ihash.h>.
    (DISK_CACHE_BLOCKS): New macro.
    (DC_INCORE): Likewise.
    (DC_UNTOUCHED): Likewise.
    (DC_FIXED): Likewise.
    (DC_DONT_REUSE): Likewise.
    (DC_NO_BLOCK): Likewise.
    (DISK_CACHE_LAST_READ_XOR) [!NDEBUG]: Likewise.
    (struct disk_cache_info): New structure.
    (disk_cache): New external variable.
    (disk_cache_size): Likewise.
    (disk_cache_blocks): Likewise.
    (disk_cache_bptr): Likewise.
    (disk_cache_info): Likewise.
    (disk_cache_lock): Likewise.
    (disk_cache_reassociation): Likewise.
    (disk_cache_block_ref): New declaration.
    (disk_cache_block_ref_ptr): Likewise.
    (disk_cache_block_deref): Likewise.
    (disk_cache_block_is_ref): Likewise.
    (map_hypermetadata): Likewise.
    (trunc_block): Cast to off_t.
    (round_block): Likewise.
    (boffs): Likewise.
    (bptr_index): New macro.
    (boffs_ptr): Rewrite as an inline function to make it look up a block from
    the disk cache.
    (bptr_offs): Likewise.
    (dino): Remove function, replaced with ...
    (dino_ref): ... this one, which adds a reference to the inode block.
    (dino_deref): New inline function.
    (record_global_poke): Make sure block is referenced.
    (record_indir_poke): Likewise.
    (sync_global_ptr): Remove block reference, and adjust call to
    pager_sync_some.
    (sync_global): Add debug call to print wait parameter.
    * ext2fs/getblk.c: Use the new disk_cache_block_ref and 
disk_cache_block_deref
    functions to access blocks from the disk cache.
    * ext2fs/hyper.c (get_hypermetadata): Read the superblock from the store
    now that it's not directly mapped in memory. Move the initialization of
    zeroblock here from ...
    (map_hypermetadata): ... here. Also, set the superblock pointer.
    (diskfs_set_hypermetadata): Add a reference to the superblock.
    (diskfs_readonly_changed): Update call to mprotect.
    * ext2fs/ialloc.c: Use the new disk_cache_block_ref, 
disk_cache_block_ref_ptr
    and disk_cache_block_deref functions to access blocks from the disk cache.
    * ext2fs/inode.c: Update calls that used the disk image to use the disk 
cache,
    and use the new reference handling functions where appropriate.
    * ext2fs/pager.c: Include <unistd.h> and "../libpager/priv.h".
    (disk_image): Remove global variable.
    (disk_pager_read_page): Update cache information.
    (disk_pager_write_page): Likewise.
    (disk_pager_notify_evict): New function.
    (pager_notify_evict): Call disk_pager_notify_evict appropriately.
    (disk_cache): New global variable.
    (disk_cache_size): Likewise.
    (disk_cache_blocks): Likewise.
    (disk_cache_bptr): Likewise.
    (disk_cache_info): Likewise.
    (disk_cache_hint): Likewise.
    (disk_cache_lock): Likewise.
    (disk_cache_reassociation): Likewise.
    (disk_cache_init): New function.
    (disk_cache_return_unused): Likewise.
    (disk_cache_block_ref): Likewise.
    (disk_cache_block_ref_ptr): Likewise.
    (disk_cache_block_deref): Likewise.
    (disk_cache_block_is_ref): Likewise.
    (create_disk_pager): Update initialization of the disk pager.
    * ext2fs/pokel.c (pokel_add): Drop block references with 
disk_cache_block_deref.
    (_pokel_exec): Likewise.
    * ext2fs/truncate.c (trunc_indirect): Use the new disk_cache_block_ref and
    disk_cache_block_deref functions to access blocks from the disk cache.

commit 0e847864cef404f555387d7fcc97f7dbe769e1e9
Author: Richard Braun <address@hidden>
Date:   Fri May 3 19:56:50 2013 +0200

    Handle notification on page eviction
    
    If requested by the user, make libpager call pager_notify_evict when a page
    is flushed out by the kernel. Based on work by Ognyan Kulev.
    
    * console/pager.c (pager_notify_evict): New function.
    (user_pager_create): Update call to pager_create.
    * ext2fs/pager.c: (pager_notify_evict): New function.
    (create_disk_pager): Update call to diskfs_start_disk_pager.
    (diskfs_get_filemap): Update call to pager_create.
    * fatfs/pager.c: (pager_notify_evict): New function.
    (create_fat_pager): Update call to diskfs_start_disk_pager.
    (diskfs_get_filemap): Update call to pager_create.
    * isofs/pager.c: (pager_notify_evict): New function.
    (create_disk_pager): Update call to diskfs_start_disk_pager.
    (diskfs_get_filemap): Update call to pager_create.
    * libdiskfs/disk-pager.c (diskfs_start_disk_pager): Update definition and 
call
    to pager_create.
    * libdiskfs/diskfs-pager.h (diskfs_start_disk_pager): Update declaration.
    * libpager/data-request.c (_pager_seqnos_memory_object_data_request): Take
    pager's `notify_on_evict' member into account when calling
    memory_object_data_supply.
    * libpager/data-return.c (_pager_do_write_request): Handle user notification
    on page flush.
    * libpager/pager-create.c (pager_create): Update definition and set pager's
    `notify_on_evict' member.
    * libpager/pager.h (pager_create): Update declaration.
    (pager_notify_evict): New declaration.
    * libpager/priv.h (struct pager): New `notify_on_evict' member.
    * storeio/pager.c: (pager_notify_evict): New function.
    (dev_get_memory_object): Update call to pager_create.
    * tmpfs/pager-stubs.c (pager_notify_evict): New function.
    * ufs/pager.c (pager_notify_evict): New function.
    (create_disk_pager): Update call to diskfs_start_disk_pager.
    (diskfs_get_filemap): Update call to pager_create.

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

Summary of changes:
 console/pager.c          |   10 +-
 ext2fs/balloc.c          |   31 +++-
 ext2fs/ext2fs.c          |    6 +-
 ext2fs/ext2fs.h          |  145 ++++++++++++--
 ext2fs/getblk.c          |   21 ++-
 ext2fs/hyper.c           |   35 +++-
 ext2fs/ialloc.c          |   37 +++-
 ext2fs/inode.c           |   40 +++-
 ext2fs/pager.c           |  467 +++++++++++++++++++++++++++++++++++++++++++--
 ext2fs/pokel.c           |   39 +++-
 ext2fs/truncate.c        |    9 +-
 fatfs/pager.c            |   11 +-
 isofs/pager.c            |   12 +-
 libdiskfs/disk-pager.c   |    6 +-
 libdiskfs/diskfs-pager.h |    3 +-
 libpager/data-request.c  |    3 +-
 libpager/data-return.c   |   79 ++++++--
 libpager/pager-create.c  |    4 +-
 libpager/pager.h         |   23 ++-
 libpager/priv.h          |    1 +
 storeio/pager.c          |    9 +-
 tmpfs/pager-stubs.c      |    8 +
 ufs/pager.c              |   11 +-
 23 files changed, 887 insertions(+), 123 deletions(-)


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