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authorDmitry Monakhov <dmonakhov@openvz.org>2012-09-29 00:41:21 -0400
committerTheodore Ts'o <tytso@mit.edu>2012-09-29 00:41:21 -0400
commit17335dcc471199717839b2fa3492ca36f70f1168 (patch)
tree5f39f51868f60f8be94ca7e811d34bba443ef288 /fs/sysfs
parent28a535f9a0df060569dcc786e5bc2e1de43d7dc7 (diff)
ext4: serialize dio nonlocked reads with defrag workers
Inode's block defrag and ext4_change_inode_journal_flag() may affect nonlocked DIO reads result, so proper synchronization required. - Add missed inode_dio_wait() calls where appropriate - Check inode state under extra i_dio_count reference. Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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