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From: John Baldwin <jhb@FreeBSD.org>
Date: Tue, 1 Feb 2011 18:21:45 +0000 (UTC)
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Subject: cvs commit: src/sys/fs/ext2fs ext2_alloc.c
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jhb         2011-02-01 18:21:45 UTC

  FreeBSD src repository

  Modified files:
    sys/fs/ext2fs        ext2_alloc.c 
  Log:
  SVN rev 218175 on 2011-02-01 18:21:45Z by jhb
  
  - Set the next_alloc fields for an i-node after allocating a new block
    so that future allocations start with most recently allocated block
    rather than the beginning of the filesystem.
  - Fix ext2_alloccg() to properly scan for 8 block chunks that are not
    aligned on 8-bit boundaries.  Previously this was causing new blocks
    to be allocated in a highly fragmented fashion (block 0 of a file at
    lbn N, block 1 at lbn N + 8, block 2 at lbn N + 16, etc.).
  - Cosmetic tweaks to the currently-disabled fancy realloc sysctls.
  
  PR:             kern/153584
  Discussed with: bde
  Tested by:      Pedro F. Giffuni  giffunip at yahoo, Zheng Liu (lz)
  
  Revision  Changes    Path
  1.4       +58 -14    src/sys/fs/ext2fs/ext2_alloc.c