diff options
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/nfsd/Makefile | 7 | ||||
| -rw-r--r-- | fs/nfsd/nfs4layouts.c | 16 | ||||
| -rw-r--r-- | fs/nfsd/nfs4proc.c | 6 | ||||
| -rw-r--r-- | fs/nfsd/trace.c | 5 | ||||
| -rw-r--r-- | fs/nfsd/trace.h | 54 |
5 files changed, 85 insertions, 3 deletions
diff --git a/fs/nfsd/Makefile b/fs/nfsd/Makefile index 5806270a8567..6cba933880c5 100644 --- a/fs/nfsd/Makefile +++ b/fs/nfsd/Makefile @@ -2,9 +2,14 @@ # Makefile for the Linux nfs server # +ccflags-y += -I$(src) # needed for trace events + obj-$(CONFIG_NFSD) += nfsd.o -nfsd-y := nfssvc.o nfsctl.o nfsproc.o nfsfh.o vfs.o \ +# this one should be compiled first, as the tracing macros can easily blow up +nfsd-y += trace.o + +nfsd-y += nfssvc.o nfsctl.o nfsproc.o nfsfh.o vfs.o \ export.o auth.o lockd.o nfscache.o nfsxdr.o stats.o nfsd-$(CONFIG_NFSD_FAULT_INJECTION) += fault_inject.o nfsd-$(CONFIG_NFSD_V2_ACL) += nfs2acl.o diff --git a/fs/nfsd/nfs4layouts.c b/fs/nfsd/nfs4layouts.c index d926865df94f..60137c54b2f7 100644 --- a/fs/nfsd/nfs4layouts.c +++ b/fs/nfsd/nfs4layouts.c @@ -9,6 +9,7 @@ #include "pnfs.h" #include "netns.h" +#include "trace.h" #define NFSDDBG_FACILITY NFSDDBG_PNFS @@ -125,6 +126,8 @@ nfsd4_free_layout_stateid(struct nfs4_stid *stid) struct nfs4_client *clp = ls->ls_stid.sc_client; struct nfs4_file *fp = ls->ls_stid.sc_file; + trace_layoutstate_free(&ls->ls_stid.sc_stateid); + spin_lock(&clp->cl_lock); list_del_init(&ls->ls_perclnt); spin_unlock(&clp->cl_lock); @@ -215,6 +218,7 @@ nfsd4_alloc_layout_stateid(struct nfsd4_compound_state *cstate, list_add(&ls->ls_perfile, &fp->fi_lo_states); spin_unlock(&fp->fi_lock); + trace_layoutstate_alloc(&ls->ls_stid.sc_stateid); return ls; } @@ -280,6 +284,8 @@ nfsd4_recall_file_layout(struct nfs4_layout_stateid *ls) if (list_empty(&ls->ls_layouts)) goto out_unlock; + trace_layout_recall(&ls->ls_stid.sc_stateid); + atomic_inc(&ls->ls_stid.sc_count); update_stateid(&ls->ls_stid.sc_stateid); memcpy(&ls->ls_recall_sid, &ls->ls_stid.sc_stateid, sizeof(stateid_t)); @@ -454,8 +460,10 @@ nfsd4_return_file_layouts(struct svc_rqst *rqstp, nfserr = nfsd4_preprocess_layout_stateid(rqstp, cstate, &lrp->lr_sid, false, lrp->lr_layout_type, &ls); - if (nfserr) + if (nfserr) { + trace_layout_return_lookup_fail(&lrp->lr_sid); return nfserr; + } spin_lock(&ls->ls_lock); list_for_each_entry_safe(lp, n, &ls->ls_layouts, lo_perstate) { @@ -472,6 +480,7 @@ nfsd4_return_file_layouts(struct svc_rqst *rqstp, } lrp->lrs_present = 1; } else { + trace_layoutstate_unhash(&ls->ls_stid.sc_stateid); nfs4_unhash_stid(&ls->ls_stid); lrp->lrs_present = 0; } @@ -570,6 +579,8 @@ nfsd4_cb_layout_fail(struct nfs4_layout_stateid *ls) rpc_ntop((struct sockaddr *)&clp->cl_addr, addr_str, sizeof(addr_str)); + nfsd4_cb_layout_fail(ls); + printk(KERN_WARNING "nfsd: client %s failed to respond to layout recall. " " Fencing..\n", addr_str); @@ -597,6 +608,7 @@ nfsd4_cb_layout_done(struct nfsd4_callback *cb, struct rpc_task *task) case 0: return 1; case -NFS4ERR_NOMATCHING_LAYOUT: + trace_layout_recall_done(&ls->ls_stid.sc_stateid); task->tk_status = 0; return 1; case -NFS4ERR_DELAY: @@ -624,6 +636,8 @@ nfsd4_cb_layout_release(struct nfsd4_callback *cb) container_of(cb, struct nfs4_layout_stateid, ls_recall); LIST_HEAD(reaplist); + trace_layout_recall_release(&ls->ls_stid.sc_stateid); + nfsd4_return_all_layouts(ls, &reaplist); nfsd4_free_layouts(&reaplist); nfs4_put_stid(&ls->ls_stid); diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c index fa14359eb956..d30bea8d0277 100644 --- a/fs/nfsd/nfs4proc.c +++ b/fs/nfsd/nfs4proc.c @@ -44,6 +44,7 @@ #include "netns.h" #include "acl.h" #include "pnfs.h" +#include "trace.h" #ifdef CONFIG_NFSD_V4_SECURITY_LABEL #include <linux/security.h> @@ -1298,8 +1299,10 @@ nfsd4_layoutget(struct svc_rqst *rqstp, nfserr = nfsd4_preprocess_layout_stateid(rqstp, cstate, &lgp->lg_sid, true, lgp->lg_layout_type, &ls); - if (nfserr) + if (nfserr) { + trace_layout_get_lookup_fail(&lgp->lg_sid); goto out; + } nfserr = nfserr_recallconflict; if (atomic_read(&ls->ls_stid.sc_file->fi_lo_recalls)) @@ -1359,6 +1362,7 @@ nfsd4_layoutcommit(struct svc_rqst *rqstp, false, lcp->lc_layout_type, &ls); if (nfserr) { + trace_layout_commit_lookup_fail(&lcp->lc_sid); /* fixup error code as per RFC5661 */ if (nfserr == nfserr_bad_stateid) nfserr = nfserr_badlayout; diff --git a/fs/nfsd/trace.c b/fs/nfsd/trace.c new file mode 100644 index 000000000000..82f89070594c --- /dev/null +++ b/fs/nfsd/trace.c @@ -0,0 +1,5 @@ + +#include "state.h" + +#define CREATE_TRACE_POINTS +#include "trace.h" diff --git a/fs/nfsd/trace.h b/fs/nfsd/trace.h new file mode 100644 index 000000000000..c668520c344b --- /dev/null +++ b/fs/nfsd/trace.h @@ -0,0 +1,54 @@ +/* + * Copyright (c) 2014 Christoph Hellwig. + */ +#undef TRACE_SYSTEM +#define TRACE_SYSTEM nfsd + +#if !defined(_NFSD_TRACE_H) || defined(TRACE_HEADER_MULTI_READ) +#define _NFSD_TRACE_H + +#include <linux/tracepoint.h> + +DECLARE_EVENT_CLASS(nfsd_stateid_class, + TP_PROTO(stateid_t *stp), + TP_ARGS(stp), + TP_STRUCT__entry( + __field(u32, cl_boot) + __field(u32, cl_id) + __field(u32, si_id) + __field(u32, si_generation) + ), + TP_fast_assign( + __entry->cl_boot = stp->si_opaque.so_clid.cl_boot; + __entry->cl_id = stp->si_opaque.so_clid.cl_id; + __entry->si_id = stp->si_opaque.so_id; + __entry->si_generation = stp->si_generation; + ), + TP_printk("client %08x:%08x stateid %08x:%08x", + __entry->cl_boot, + __entry->cl_id, + __entry->si_id, + __entry->si_generation) +) + +#define DEFINE_STATEID_EVENT(name) \ +DEFINE_EVENT(nfsd_stateid_class, name, \ + TP_PROTO(stateid_t *stp), \ + TP_ARGS(stp)) +DEFINE_STATEID_EVENT(layoutstate_alloc); +DEFINE_STATEID_EVENT(layoutstate_unhash); +DEFINE_STATEID_EVENT(layoutstate_free); +DEFINE_STATEID_EVENT(layout_get_lookup_fail); +DEFINE_STATEID_EVENT(layout_commit_lookup_fail); +DEFINE_STATEID_EVENT(layout_return_lookup_fail); +DEFINE_STATEID_EVENT(layout_recall); +DEFINE_STATEID_EVENT(layout_recall_done); +DEFINE_STATEID_EVENT(layout_recall_fail); +DEFINE_STATEID_EVENT(layout_recall_release); + +#endif /* _NFSD_TRACE_H */ + +#undef TRACE_INCLUDE_PATH +#define TRACE_INCLUDE_PATH . +#define TRACE_INCLUDE_FILE trace +#include <trace/define_trace.h> |