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scoutfs: add rename trace point

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Signed-off-by: Zach Brown <zab@versity.com>
This commit is contained in:
Zach Brown
2017-11-06 13:41:06 -08:00
committed by Mark Fasheh
parent 5c3962d223
commit a3d500c143
2 changed files with 40 additions and 0 deletions
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2
kmod/src/dir.c
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@@ -1397,6 +1397,8 @@ static int scoutfs_rename(struct inode *old_dir, struct dentry *old_dentry,
int ret;
int err;
trace_scoutfs_rename(sb, old_dir, old_dentry, new_dir, new_dentry);
if (new_dentry->d_name.len > SCOUTFS_NAME_LEN)
return -ENAMETOOLONG;

38
kmod/src/scoutfs_trace.h
View File

@@ -1778,6 +1778,44 @@ TRACE_EVENT(scoutfs_item_shrink_around,
__get_str(last), __get_str(next))
);
TRACE_EVENT(scoutfs_rename,
TP_PROTO(struct super_block *sb, struct inode *old_dir,
struct dentry *old_dentry, struct inode *new_dir,
struct dentry *new_dentry),
TP_ARGS(sb, old_dir, old_dentry, new_dir, new_dentry),
TP_STRUCT__entry(
__field(__u64, fsid)
__field(__u64, old_dir_ino)
__field(char *, old_name)
__field(unsigned int, old_name_len)
__field(__u64, new_dir_ino)
__field(char *, new_name)
__field(unsigned int, new_name_len)
__field(__u64, new_inode_ino)
),
TP_fast_assign(
__entry->fsid = FSID_ARG(sb);
__entry->old_dir_ino = scoutfs_ino(old_dir);
__entry->old_name = (char *)old_dentry->d_name.name;
__entry->old_name_len = old_dentry->d_name.len;
__entry->new_dir_ino = scoutfs_ino(new_dir);
__entry->new_name = (char *)new_dentry->d_name.name;
__entry->new_name_len = new_dentry->d_name.len;
__entry->new_inode_ino = new_dentry->d_inode ?
scoutfs_ino(new_dentry->d_inode) : 0;
),
TP_printk("fsid "FSID_FMT" old_dir_ino %llu old_name %.*s (len %u) new_dir_ino %llu new_name %.*s (len %u) new_inode_ino %llu",
__entry->fsid, __entry->old_dir_ino, __entry->old_name_len,
__entry->old_name, __entry->old_name_len,
__entry->new_dir_ino, __entry->new_name_len,
__entry->new_name, __entry->new_name_len,
__entry->new_inode_ino)
);
#endif /* _TRACE_SCOUTFS_H */
/* This part must be outside protection */