nfs: take i_mutex during direct I/O reads

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We'll need the i_mutex to prevent i_dio_count from incrementing while
truncate is waiting for it to reach zero, and protects against having
the pagecache repopulated after we flushed it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>

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Christoph Hellwig 2013-11-14 08:50:33 -08:00 • committed by Trond Myklebust

parent 22cd1bf148

commit d0b9875d65

1 changed files with 12 additions and 2 deletions

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fs/nfs/direct.c

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