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authorChuck Lever <chuck.lever@oracle.com>2012-03-02 02:01:31 +0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2012-03-03 02:18:08 +0400
commit20d27e929fb4790a339a4ddcc9a27f14db06055b (patch)
treee62d752180c2c7342d801f903c7f2ce2dd952075 /include/linux/nfs_fs.h
parent31b8e2aec099f22d40277c424d8c24b2a4c95fce (diff)
downloadlinux-20d27e929fb4790a339a4ddcc9a27f14db06055b.tar.xz
NFS: Add a client-side function to display NFS file handles
For debugging, introduce a simplistic function to print NFS file handles on the system console. The main function is hooked into the dprintk debugging facility, but you can directly call the helper, _nfs_display_fhandle(), if you want to print a handle unconditionally. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'include/linux/nfs_fs.h')
-rw-r--r--include/linux/nfs_fs.h14
1 files changed, 14 insertions, 0 deletions
diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h
index 8c29950d2fa5..c07a757649dc 100644
--- a/include/linux/nfs_fs.h
+++ b/include/linux/nfs_fs.h
@@ -395,6 +395,20 @@ static inline void nfs_free_fhandle(const struct nfs_fh *fh)
kfree(fh);
}
+#ifdef RPC_DEBUG
+extern void _nfs_display_fhandle(const struct nfs_fh *fh, const char *caption);
+#define nfs_display_fhandle(fh, caption) \
+ do { \
+ if (unlikely(nfs_debug & NFSDBG_FACILITY)) \
+ _nfs_display_fhandle(fh, caption); \
+ } while (0)
+#else
+static inline void nfs_display_fhandle(const struct nfs_fh *fh,
+ const char *caption)
+{
+}
+#endif
+
/*
* linux/fs/nfs/nfsroot.c
*/