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| author |   Trond Myklebust <Trond.Myklebust@netapp.com> | 2013-08-21 10:53:09 -0400 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2013-08-22 08:58:18 -0400 |
| commit | 8b0ad3d489cb107804bd8c78695532794eec73d5 (patch) | |
| tree | 8effbc44356b30d38f6a267838d90bc639e9ff94 | |
| parent | NFS: Add event tracing for generic NFS lookups (diff) | |
| download | linux-dev-8b0ad3d489cb107804bd8c78695532794eec73d5.tar.xz linux-dev-8b0ad3d489cb107804bd8c78695532794eec73d5.zip | |
NFS: Add tracepoints for debugging generic file create events
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| -rw-r--r-- | fs/nfs/dir.c | 2 | ||||
| -rw-r--r-- | fs/nfs/nfstrace.h | 70 |
2 files changed, 72 insertions, 0 deletions
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c index 2263a6ba36af..9c0781265425 100644 --- a/fs/nfs/dir.c +++ b/fs/nfs/dir.c @@ -1612,7 +1612,9 @@ int nfs_create(struct inode *dir, struct dentry *dentry, attr.ia_mode = mode; attr.ia_valid = ATTR_MODE; + trace_nfs_create_enter(dir, dentry, open_flags); error = NFS_PROTO(dir)->create(dir, dentry, &attr, open_flags); + trace_nfs_create_exit(dir, dentry, open_flags, error); if (error != 0) goto out_err; return 0; diff --git a/fs/nfs/nfstrace.h b/fs/nfs/nfstrace.h index fba194b70027..2963a050ceff 100644 --- a/fs/nfs/nfstrace.h +++ b/fs/nfs/nfstrace.h @@ -352,6 +352,76 @@ TRACE_EVENT(nfs_atomic_open_exit, ) ); +TRACE_EVENT(nfs_create_enter, + TP_PROTO( + const struct inode *dir, + const struct dentry *dentry, + unsigned int flags + ), + + TP_ARGS(dir, dentry, flags), + + TP_STRUCT__entry( + __field(unsigned int, flags) + __field(dev_t, dev) + __field(u64, dir) + __string(name, dentry->d_name.name) + ), + + TP_fast_assign( + __entry->dev = dir->i_sb->s_dev; + __entry->dir = NFS_FILEID(dir); + __entry->flags = flags; + __assign_str(name, dentry->d_name.name); + ), + + TP_printk( + "flags=%u (%s) name=%02x:%02x:%llu/%s", + __entry->flags, + show_open_flags(__entry->flags), + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long long)__entry->dir, + __get_str(name) + ) +); + +TRACE_EVENT(nfs_create_exit, + TP_PROTO( + const struct inode *dir, + const struct dentry *dentry, + unsigned int flags, + int error + ), + + TP_ARGS(dir, dentry, flags, error), + + TP_STRUCT__entry( + __field(int, error) + __field(unsigned int, flags) + __field(dev_t, dev) + __field(u64, dir) + __string(name, dentry->d_name.name) + ), + + TP_fast_assign( + __entry->error = error; + __entry->dev = dir->i_sb->s_dev; + __entry->dir = NFS_FILEID(dir); + __entry->flags = flags; + __assign_str(name, dentry->d_name.name); + ), + + TP_printk( + "error=%d flags=%u (%s) name=%02x:%02x:%llu/%s", + __entry->error, + __entry->flags, + show_open_flags(__entry->flags), + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long long)__entry->dir, + __get_str(name) + ) +); + #endif /* _TRACE_NFS_H */ #undef TRACE_INCLUDE_PATH |