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authorJ. Bruce Fields <bfields@citi.umich.edu>2007-07-11 18:39:02 -0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2007-07-19 15:21:39 -0400
commitbe879c4e249a8875d7129f3b0c1bb62584dafbd8 (patch)
tree6d6d774ac4dd24ff280e83e1d6a65be29a6dc6f8 /include
parente3a535e1739a9da3cc316ccdfe5cd4bf84d745ac (diff)
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SUNRPC: move bkl locking and xdr proc invocation into a common helper
Since every invocation of xdr encode or decode functions takes the BKL now, there's a lot of redundant lock_kernel/unlock_kernel pairs that we can pull out into a common function. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'include')
-rw-r--r--include/linux/sunrpc/xdr.h16
1 files changed, 16 insertions, 0 deletions
diff --git a/include/linux/sunrpc/xdr.h b/include/linux/sunrpc/xdr.h
index 9e340fa..c6b53d1 100644
--- a/include/linux/sunrpc/xdr.h
+++ b/include/linux/sunrpc/xdr.h
@@ -12,6 +12,7 @@
#include <linux/uio.h>
#include <asm/byteorder.h>
#include <linux/scatterlist.h>
+#include <linux/smp_lock.h>
/*
* Buffer adjustment
@@ -36,6 +37,21 @@ struct xdr_netobj {
typedef int (*kxdrproc_t)(void *rqstp, __be32 *data, void *obj);
/*
+ * We're still requiring the BKL in the xdr code until it's been
+ * more carefully audited, at which point this wrapper will become
+ * unnecessary.
+ */
+static inline int rpc_call_xdrproc(kxdrproc_t xdrproc, void *rqstp, __be32 *data, void *obj)
+{
+ int ret;
+
+ lock_kernel();
+ ret = xdrproc(rqstp, data, obj);
+ unlock_kernel();
+ return ret;
+}
+
+/*
* Basic structure for transmission/reception of a client XDR message.
* Features a header (for a linear buffer containing RPC headers
* and the data payload for short messages), and then an array of
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