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(parent: 536e43d) | patch
NFS: Ensure that mmapped pages remain stable during writeback
authorTrond Myklebust <Trond.Myklebust@netapp.com>
Wed, 18 Jan 2012 03:04:26 +0000 (22:04 -0500)
committerTrond Myklebust <Trond.Myklebust@netapp.com>
Wed, 1 Feb 2012 00:28:08 +0000 (19:28 -0500)
commit2aeb98f498ce37742b743080fdc6c8cf64053599
tree7ee6fddcb6006adfb40c90d5be00f5029ee0c1ebtree
parent536e43d12b9517bbbf6114cd1a12be27857a4d7acommit | diff
NFS: Ensure that mmapped pages remain stable during writeback

Ensure that nfs_vm_page_mkwrite() waits for the page writeback to
complete before the application is allowed to modify page
contents.
The main reason for wanting to do this in NFS is to ensure that the
server doesn't get confused if we have to resend the RPC request
due to a dropped/missed reply.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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