xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

NFS: Add trace events to report non-zero NFS status codes

Browse Source 
These can help field troubleshooting without needing the overhead
of a full network capture (ie, tcpdump).

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
This commit is contained in:
Chuck Lever
2019-02-11 11:24:26 -05:00
committed by Anna Schumaker
parent eb72f484a5
commit f23f658404
6 changed files with 133 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
fs/nfs/nfs2xdr.c
View File

@@ -22,6 +22,7 @@
#include <linux/nfs.h>
#include <linux/nfs2.h>
#include <linux/nfs_fs.h>
#include "nfstrace.h"
#include "internal.h"
#define NFSDBG_FACILITY NFSDBG_XDR
@@ -145,7 +146,13 @@ static int decode_stat(struct xdr_stream *xdr, enum nfs_stat *status)
p = xdr_inline_decode(xdr, 4);
if (unlikely(!p))
return -EIO;
if (unlikely(*p != cpu_to_be32(NFS_OK)))
goto out_status;
*status = 0;
return 0;
out_status:
*status = be32_to_cpup(p);
trace_nfs_xdr_status((int)*status);
return 0;
}