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| author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2013-08-15 00:36:51 +0400 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2013-08-22 16:58:26 +0400 |
| commit | 1037e6eaa37a42cec877f103c091cfe5304f4450 (patch) | |
| tree | 6489ce3781968ac0cc0f6b48180ce726ab49df86 | |
| parent | cc668ab30b8a5505c1651b073882c1a67c802a48 (diff) | |
| download | linux-1037e6eaa37a42cec877f103c091cfe5304f4450.tar.xz | |
NFSv4.1: Add tracepoints for debugging layoutget/return/commit
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| -rw-r--r-- | fs/nfs/nfs4proc.c | 6 | ||||
| -rw-r--r-- | fs/nfs/nfs4trace.h | 55 |
2 files changed, 61 insertions, 0 deletions
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 214f9c4fdeee..c8b5ff6effe9 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -6860,6 +6860,10 @@ nfs4_proc_layoutget(struct nfs4_layoutget *lgp, gfp_t gfp_flags) status = nfs4_wait_for_completion_rpc_task(task); if (status == 0) status = task->tk_status; + trace_nfs4_layoutget(lgp->args.ctx, + &lgp->args.range, + &lgp->res.range, + status); /* if layoutp->len is 0, nfs4_layoutget_prepare called rpc_exit */ if (status == 0 && lgp->res.layoutp->len) lseg = pnfs_layout_process(lgp); @@ -6945,6 +6949,7 @@ int nfs4_proc_layoutreturn(struct nfs4_layoutreturn *lrp) if (IS_ERR(task)) return PTR_ERR(task); status = task->tk_status; + trace_nfs4_layoutreturn(lrp->args.inode, status); dprintk("<-- %s status=%d\n", __func__, status); rpc_put_task(task); return status; @@ -7131,6 +7136,7 @@ nfs4_proc_layoutcommit(struct nfs4_layoutcommit_data *data, bool sync) if (status != 0) goto out; status = task->tk_status; + trace_nfs4_layoutcommit(data->args.inode, status); out: dprintk("%s: status %d\n", __func__, status); rpc_put_task(task); diff --git a/fs/nfs/nfs4trace.h b/fs/nfs/nfs4trace.h index 1ea69836443f..b2a2d8a30c66 100644 --- a/fs/nfs/nfs4trace.h +++ b/fs/nfs/nfs4trace.h @@ -894,6 +894,61 @@ DECLARE_EVENT_CLASS(nfs4_commit_event, DEFINE_NFS4_COMMIT_EVENT(nfs4_commit); #ifdef CONFIG_NFS_V4_1 DEFINE_NFS4_COMMIT_EVENT(nfs4_pnfs_commit_ds); + +#define show_pnfs_iomode(iomode) \ + __print_symbolic(iomode, \ + { IOMODE_READ, "READ" }, \ + { IOMODE_RW, "RW" }, \ + { IOMODE_ANY, "ANY" }) + +TRACE_EVENT(nfs4_layoutget, + TP_PROTO( + const struct nfs_open_context *ctx, + const struct pnfs_layout_range *args, + const struct pnfs_layout_range *res, + int error + ), + + TP_ARGS(ctx, args, res, error), + + TP_STRUCT__entry( + __field(dev_t, dev) + __field(u32, fhandle) + __field(u64, fileid) + __field(u32, iomode) + __field(u64, offset) + __field(u64, count) + __field(int, error) + ), + + TP_fast_assign( + const struct inode *inode = ctx->dentry->d_inode; + __entry->dev = inode->i_sb->s_dev; + __entry->fileid = NFS_FILEID(inode); + __entry->fhandle = nfs_fhandle_hash(NFS_FH(inode)); + __entry->iomode = args->iomode; + __entry->offset = args->offset; + __entry->count = args->length; + __entry->error = error; + ), + + TP_printk( + "error=%d (%s) fileid=%02x:%02x:%llu fhandle=0x%08x " + "iomode=%s offset=%llu count=%llu", + __entry->error, + show_nfsv4_errors(__entry->error), + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long long)__entry->fileid, + __entry->fhandle, + show_pnfs_iomode(__entry->iomode), + (unsigned long long)__entry->offset, + (unsigned long long)__entry->count + ) +); + +DEFINE_NFS4_INODE_EVENT(nfs4_layoutcommit); +DEFINE_NFS4_INODE_EVENT(nfs4_layoutreturn); + #endif /* CONFIG_NFS_V4_1 */ #endif /* _TRACE_NFS4_H */ |