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linux/fs/nfs/write.c
Jeff Layton 4db72b40fd nfs: add memory barriers around NFS_INO_INVALID_DATA and NFS_INO_INVALIDATING 
If the setting of NFS_INO_INVALIDATING gets reordered to before the
clearing of NFS_INO_INVALID_DATA, then another task may hit a race
window where both appear to be clear, even though the inode's pages are
still in need of invalidation. Fix this by adding the appropriate memory
barriers.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2014-01-28 14:48:18 -05:00

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