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Btrfs: tree mod log sanity checks in join_transaction
authorJan Schmidt <list.btrfs@jan-o-sch.net>
Sun, 20 May 2012 13:43:53 +0000 (15:43 +0200)
committerJan Schmidt <list.btrfs@jan-o-sch.net>
Wed, 30 May 2012 13:17:36 +0000 (15:17 +0200)
commit20b297d620cd1bb94127942bbb3702fb7b1030b2
tree45e1d42c376b168ae55460e2d481f915d6cc8b78tree | snapshot
parent19ae4e8133f370d820c4cdd61a4b703235664a5fcommit | diff
Btrfs: tree mod log sanity checks in join_transaction

When a fresh transaction begins, the tree mod log must be clean. Users of
the tree modification log must ensure they never span across transaction
boundaries.

We reset the sequence to 0 in this safe situation to make absolutely sure
overflow can't happen.

Signed-off-by: Jan Schmidt <list.btrfs@jan-o-sch.net>
fs/btrfs/transaction.c diff | blob | history
Domain: System / Uncategorized;