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authorPaul Mundt <lethal@linux-sh.org>2009-09-16 13:48:32 +0900
committerPaul Mundt <lethal@linux-sh.org>2009-09-16 13:48:32 +0900
commitea88023b3491a384575ebcd5e8a449e841a28a24 (patch)
treef46e3d8302e44dc55ce31823501e100472d29683 /fs/nfs/cache_lib.h
parenta6f15ade97989d414e9bf33874c9d5d1f39808ec (diff)
parent0cb583fd2862f19ea88b02eb307d11c09e51e2f8 (diff)
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Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts: arch/sh/kernel/vmlinux.lds.S
Diffstat (limited to 'fs/nfs/cache_lib.h')
-rw-r--r--fs/nfs/cache_lib.h27
1 files changed, 27 insertions, 0 deletions
diff --git a/fs/nfs/cache_lib.h b/fs/nfs/cache_lib.h
new file mode 100644
index 00000000000..76f856e284e
--- /dev/null
+++ b/fs/nfs/cache_lib.h
@@ -0,0 +1,27 @@
+/*
+ * Helper routines for the NFS client caches
+ *
+ * Copyright (c) 2009 Trond Myklebust <Trond.Myklebust@netapp.com>
+ */
+
+#include <linux/completion.h>
+#include <linux/sunrpc/cache.h>
+#include <asm/atomic.h>
+
+/*
+ * Deferred request handling
+ */
+struct nfs_cache_defer_req {
+ struct cache_req req;
+ struct cache_deferred_req deferred_req;
+ struct completion completion;
+ atomic_t count;
+};
+
+extern int nfs_cache_upcall(struct cache_detail *cd, char *entry_name);
+extern struct nfs_cache_defer_req *nfs_cache_defer_req_alloc(void);
+extern void nfs_cache_defer_req_put(struct nfs_cache_defer_req *dreq);
+extern int nfs_cache_wait_for_upcall(struct nfs_cache_defer_req *dreq);
+
+extern int nfs_cache_register(struct cache_detail *cd);
+extern void nfs_cache_unregister(struct cache_detail *cd);