Btrfs: fix NULL pointer after aborting a transaction

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While doing cleanup work on an aborted transaction, we've set
the global running transaction pointer to NULL _before_ waiting all
other transaction handles to finish, so others'd hit NULL pointer
crash when referencing the global running transaction pointer.

This first sets a hint to avoid new transaction handle joining, then
waits other existing handles to abort or finish so that we can safely
set the above global pointer to NULL.

Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>

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Liu Bo 2013-02-27 13:28:25 +00:00 • committed by Josef Bacik

parent 3321719ed6

commit f094ac32ab

1 changed files with 7 additions and 1 deletions

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fs/btrfs/transaction.c

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