dax: assert that i_rwsem is held exclusive for writes

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Make sure all callers follow the same locking protocol, given that DAX
transparantly replaced the normal buffered I/O path.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Jan Kara <jack@suse.cz>

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Christoph Hellwig 2017-02-08 14:43:13 -05:00 • committed by Theodore Ts'o

parent ff5462e39c

commit 168316db35

1 changed files with 5 additions and 1 deletions

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fs/dax.c

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