Btrfs: Allocator improvements

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Reduce CPU time searching for free blocks by optimizing find_first_extent_bit

Fix find_free_extent to make better use of the last_alloc hint.  Before it
was often finding blocks just before the hint.

Signed-off-by: Chris Mason <chris.mason@oracle.com>

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Chris Mason 2008-02-18 12:12:38 -05:00

parent 9afbb0b752

commit d7fc640e6f

4 changed files with 70 additions and 15 deletions

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2

fs/btrfs/disk-io.c

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34

fs/btrfs/extent-tree.c

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38

fs/btrfs/extent_io.c

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11

fs/btrfs/extent_io.h

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