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linux/fs/jbd2/transaction.c
dingdinghua ba869023ea jbd2: delay discarding buffers in journal_unmap_buffer 
Delay discarding buffers in journal_unmap_buffer until
we know that "add to orphan" operation has definitely been
committed, otherwise the log space of committing transation
may be freed and reused before truncate get committed, updates
may get lost if crash happens.

Signed-off-by: dingdinghua <dingdinghua@nrchpc.ac.cn>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2010-02-15 16:35:42 -05:00

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