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authorTrond Myklebust <Trond.Myklebust@netapp.com>2009-08-10 14:54:13 +0200
committerTrond Myklebust <Trond.Myklebust@netapp.com>2009-08-10 14:54:13 +0200
commit074cc1deec5dee63fcd5d966b36fa4f3765b50fc (patch)
tree14508949385a168ab2e43ca5bf7423473f25d839 /fs/nfs/internal.h
parentNFSv4: Clean up the nfs.callback_tcpport option (diff)
downloadlinux-074cc1deec5dee63fcd5d966b36fa4f3765b50fc.tar.xz
linux-074cc1deec5dee63fcd5d966b36fa4f3765b50fc.zip
NFS: Add a ->migratepage() aop for NFS
Make NFS a bit more friendly to NUMA and memory hot removal... Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/internal.h')
-rw-r--r--fs/nfs/internal.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
index 7dd90a6769d0..e2ccb4a4398a 100644
--- a/fs/nfs/internal.h
+++ b/fs/nfs/internal.h
@@ -248,6 +248,12 @@ extern void nfs_read_prepare(struct rpc_task *task, void *calldata);
/* write.c */
extern void nfs_write_prepare(struct rpc_task *task, void *calldata);
+#ifdef CONFIG_MIGRATION
+extern int nfs_migrate_page(struct address_space *,
+ struct page *, struct page *);
+#else
+#define nfs_migrate_page NULL
+#endif
/* nfs4proc.c */
extern int _nfs4_call_sync(struct nfs_server *server,