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| author | Chuck Lever <chuck.lever@oracle.com> | 2020-05-12 23:14:11 +0200 |
|---|---|---|
| committer | Anna Schumaker <Anna.Schumaker@Netapp.com> | 2020-06-11 19:33:48 +0200 |
| commit | cd2ed9bdc0794464d57a5ae2d979b1543a75694b (patch) | |
| tree | e09531291550354852d04ac8ef22b8da4289d168 | |
| parent | NFS: Trace short NFS READs (diff) | |
| download | linux-cd2ed9bdc0794464d57a5ae2d979b1543a75694b.tar.xz linux-cd2ed9bdc0794464d57a5ae2d979b1543a75694b.zip | |
NFS: Add a tracepoint in nfs_set_pgio_error()
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
| -rw-r--r-- | fs/nfs/nfstrace.h | 44 | ||||
| -rw-r--r-- | fs/nfs/pagelist.c | 2 |
2 files changed, 46 insertions, 0 deletions
diff --git a/fs/nfs/nfstrace.h b/fs/nfs/nfstrace.h index b35998c5c9ca..547cec79899f 100644 --- a/fs/nfs/nfstrace.h +++ b/fs/nfs/nfstrace.h @@ -1008,6 +1008,50 @@ TRACE_EVENT(nfs_readpage_short, ) ); +TRACE_EVENT(nfs_pgio_error, + TP_PROTO( + const struct nfs_pgio_header *hdr, + int error, + loff_t pos + ), + + TP_ARGS(hdr, error, pos), + + TP_STRUCT__entry( + __field(dev_t, dev) + __field(u32, fhandle) + __field(u64, fileid) + __field(loff_t, offset) + __field(u32, arg_count) + __field(u32, res_count) + __field(loff_t, pos) + __field(int, status) + ), + + TP_fast_assign( + const struct inode *inode = hdr->inode; + const struct nfs_inode *nfsi = NFS_I(inode); + const struct nfs_fh *fh = hdr->args.fh ? + hdr->args.fh : &nfsi->fh; + + __entry->status = error; + __entry->offset = hdr->args.offset; + __entry->arg_count = hdr->args.count; + __entry->res_count = hdr->res.count; + __entry->dev = inode->i_sb->s_dev; + __entry->fileid = nfsi->fileid; + __entry->fhandle = nfs_fhandle_hash(fh); + ), + + TP_printk("fileid=%02x:%02x:%llu fhandle=0x%08x " + "offset=%lld count=%u res=%u pos=%llu status=%d", + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long long)__entry->fileid, __entry->fhandle, + (long long)__entry->offset, __entry->arg_count, __entry->res_count, + __entry->pos, __entry->status + ) +); + TRACE_DEFINE_ENUM(NFS_UNSTABLE); TRACE_DEFINE_ENUM(NFS_DATA_SYNC); TRACE_DEFINE_ENUM(NFS_FILE_SYNC); diff --git a/fs/nfs/pagelist.c b/fs/nfs/pagelist.c index 6ca421cbe19c..6ea4cac41e46 100644 --- a/fs/nfs/pagelist.c +++ b/fs/nfs/pagelist.c @@ -24,6 +24,7 @@ #include "internal.h" #include "pnfs.h" +#include "nfstrace.h" #define NFSDBG_FACILITY NFSDBG_PAGECACHE @@ -64,6 +65,7 @@ void nfs_set_pgio_error(struct nfs_pgio_header *hdr, int error, loff_t pos) { unsigned int new = pos - hdr->io_start; + trace_nfs_pgio_error(hdr, error, pos); if (hdr->good_bytes > new) { hdr->good_bytes = new; clear_bit(NFS_IOHDR_EOF, &hdr->flags); |