Btrfs: prepare block group cache before writing

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Writing the block group cache will modify the extent tree quite a bit because it
truncates the old space cache and pre-allocates new stuff.  To try and cut down
on the churn lets do the setup dance first, then later on hopefully we can avoid
looping with newly dirtied roots.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fb.com>

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Josef Bacik 2015-03-02 16:37:31 -05:00

parent ea526d1899

commit dcdf7f6ddb

3 changed files with 32 additions and 1 deletions

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2

fs/btrfs/ctree.h

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26

fs/btrfs/extent-tree.c

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5

fs/btrfs/transaction.c

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