Btrfs: hooks to reserve qgroup space

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Like block reserves, reserve a small piece of space on each
transaction start and for delalloc. These are the hooks that
can actually return EDQUOT to the user.
The amount of space reserved is tracked in the transaction
handle.

Signed-off-by: Arne Jansen <sensille@gmx.net>

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Arne Jansen 2011-09-14 15:44:05 +02:00 • committed by Jan Schmidt

parent 546adb0d81

commit c556723794

3 changed files with 29 additions and 0 deletions

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12

fs/btrfs/extent-tree.c

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16

fs/btrfs/transaction.c

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1

fs/btrfs/transaction.h

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