tree d1c594afe05bb850be832c423934486324939994
parent d6ab3661020cbf8a8909b49a8e1408d5ae434001
author Jan Kara <jack@suse.cz> 1496927801 +0200
committer Jan Kara <jack@suse.cz> 1502989250 +0200

quota: Protect dquot writeout with dq_lock

Currently dquot writeout is only protected by dqio_sem held for writing.
As we transition to a finer grained locking we will use dquot->dq_lock
instead. So acquire it in dquot_commit() and move dqio_sem just around
->commit_dqblk() call as it is still needed to serialize quota file
changes.

Reviewed-by: Andreas Dilger <adilger@dilger.ca>
Signed-off-by: Jan Kara <jack@suse.cz>