diff options
| author |   Olga Kornievskaia <kolga@netapp.com> | 2021-11-04 10:57:08 -0400 |
|---|---|---|
| committer |   Trond Myklebust <trond.myklebust@hammerspace.com> | 2021-11-04 19:43:30 -0400 |
| commit | f628d462b366a160c181e89279f15295fad62f59 (patch) | |
| tree | ab11f0b313b7b3aec8d9b7b1c8dcb30a8c006d73 /fs/nfs | |
| parent | SUNRPC: Check if the xprt is connected before handling sysfs reads (diff) | |
| download | linux-dev-f628d462b366a160c181e89279f15295fad62f59.tar.xz linux-dev-f628d462b366a160c181e89279f15295fad62f59.zip | |
NFSv4.2 add tracepoint to SEEK
Add a tracepoint to the SEEK operation.
Signed-off-by: Olga Kornievskaia <kolga@netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Diffstat (limited to 'fs/nfs')
| -rw-r--r-- | fs/nfs/nfs42proc.c | 1 | ||||
| -rw-r--r-- | fs/nfs/nfs4trace.h | 74 |
2 files changed, 75 insertions, 0 deletions
diff --git a/fs/nfs/nfs42proc.c b/fs/nfs/nfs42proc.c index a24349512ffe..87c0dcb8823b 100644 --- a/fs/nfs/nfs42proc.c +++ b/fs/nfs/nfs42proc.c @@ -678,6 +678,7 @@ static loff_t _nfs42_proc_llseek(struct file *filep, status = nfs4_call_sync(server->client, server, &msg, &args.seq_args, &res.seq_res, 0); + trace_nfs4_llseek(inode, &args, &res, status); if (status == -ENOTSUPP) server->caps &= ~NFS_CAP_SEEK; if (status) diff --git a/fs/nfs/nfs4trace.h b/fs/nfs/nfs4trace.h index 18f149f72160..823ac436a1da 100644 --- a/fs/nfs/nfs4trace.h +++ b/fs/nfs/nfs4trace.h @@ -2054,6 +2054,80 @@ TRACE_EVENT(ff_layout_commit_error, ) ); +TRACE_DEFINE_ENUM(NFS4_CONTENT_DATA); +TRACE_DEFINE_ENUM(NFS4_CONTENT_HOLE); + +#define show_llseek_mode(what) \ + __print_symbolic(what, \ + { NFS4_CONTENT_DATA, "DATA" }, \ + { NFS4_CONTENT_HOLE, "HOLE" }) + +#ifdef CONFIG_NFS_V4_2 +TRACE_EVENT(nfs4_llseek, + TP_PROTO( + const struct inode *inode, + const struct nfs42_seek_args *args, + const struct nfs42_seek_res *res, + int error + ), + + TP_ARGS(inode, args, res, error), + + TP_STRUCT__entry( + __field(unsigned long, error) + __field(u32, fhandle) + __field(u32, fileid) + __field(dev_t, dev) + __field(int, stateid_seq) + __field(u32, stateid_hash) + __field(loff_t, offset_s) + __field(u32, what) + __field(loff_t, offset_r) + __field(u32, eof) + ), + + TP_fast_assign( + const struct nfs_inode *nfsi = NFS_I(inode); + const struct nfs_fh *fh = args->sa_fh; + + __entry->fileid = nfsi->fileid; + __entry->dev = inode->i_sb->s_dev; + __entry->fhandle = nfs_fhandle_hash(fh); + __entry->offset_s = args->sa_offset; + __entry->stateid_seq = + be32_to_cpu(args->sa_stateid.seqid); + __entry->stateid_hash = + nfs_stateid_hash(&args->sa_stateid); + __entry->what = args->sa_what; + if (error) { + __entry->error = -error; + __entry->offset_r = 0; + __entry->eof = 0; + } else { + __entry->error = 0; + __entry->offset_r = res->sr_offset; + __entry->eof = res->sr_eof; + } + ), + + TP_printk( + "error=%ld (%s) fileid=%02x:%02x:%llu fhandle=0x%08x " + "stateid=%d:0x%08x offset_s=%llu what=%s " + "offset_r=%llu eof=%u", + -__entry->error, + show_nfs4_status(__entry->error), + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long long)__entry->fileid, + __entry->fhandle, + __entry->stateid_seq, __entry->stateid_hash, + __entry->offset_s, + show_llseek_mode(__entry->what), + __entry->offset_r, + __entry->eof + ) +); + +#endif /* CONFIG_NFS_V4_2 */ #endif /* CONFIG_NFS_V4_1 */ |