DragonFly-2.3.0.894.g3214a master sys/vfs/hammer hammer.h hammer_blockmap.c hammer_btree.c hammer_cursor.h hammer_inode.c hammer_io.c hammer_object.c

[Matthew Dillon <dillon@xxxxxxxxxxxxxxxxxxxxxxx>]

commit 3214ade633b2463cc9dc8c3f8d765608ee5a78a3
Author: Matthew Dillon <dillon@apollo.backplane.com>
Date:   Wed May 6 13:38:22 2009 -0700

    HAMMER VFS - Refactor merged search function to try to avoid missed entries
    
    Refactor the merged B-Tree + In-Memory search function to try to avoid races
    where an in-memory record is flushed to the media during a search, causing
    the search to miss the record.
    
    Add another flag to hammer_record_t to indicate that the record was deleted
    because it was committed to the media (verses simply being deleted).
    
    Better-separate HAMMER_RECF_DELETED_FE and HAMMER_RECF_DELETED_BE.  These
    flags indicate whether the frontend or backend deleted an in-memory record.
    The backend ignores frontend deletions that occur after the record has been
    associated with a flush group.
    
    Remove some console Warnings that are no longer applicable.

Summary of changes:
 sys/vfs/hammer/hammer.h          |    3 +-
 sys/vfs/hammer/hammer_blockmap.c |   13 --
 sys/vfs/hammer/hammer_btree.c    |   26 ++-
 sys/vfs/hammer/hammer_cursor.h   |    2 +
 sys/vfs/hammer/hammer_inode.c    |   70 +++++--
 sys/vfs/hammer/hammer_io.c       |    3 +-
 sys/vfs/hammer/hammer_object.c   |  439 ++++++++++++++++++++++++++------------
 7 files changed, 381 insertions(+), 175 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/3214ade633b2463cc9dc8c3f8d765608ee5a78a3


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