Btrfs: Do snapshot deletion in smaller chunks.

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Before, snapshot deletion was a single atomic unit.  This caused considerable
lock contention and required an unbounded amount of space.  Now,
the drop_progress field in the root item is used to indicate how far along
snapshot deletion is, and to resume where it left off.

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

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Chris Mason 2007-08-07 15:52:19 -04:00 • committed by David Woodhouse

parent 8578f0f1fd

commit 9f3a742736

4 changed files with 91 additions and 31 deletions

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10

fs/btrfs/ctree.c

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4

fs/btrfs/ctree.h

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45

fs/btrfs/extent-tree.c

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63

fs/btrfs/transaction.c

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