root/include/trace/events/timestamp.h
/* SPDX-License-Identifier: GPL-2.0 */
#undef TRACE_SYSTEM
#define TRACE_SYSTEM timestamp

#if !defined(_TRACE_TIMESTAMP_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_TIMESTAMP_H

#include <linux/tracepoint.h>
#include <linux/fs.h>

#define CTIME_QUERIED_FLAGS \
        { I_CTIME_QUERIED, "Q" }

DECLARE_EVENT_CLASS(ctime,
        TP_PROTO(struct inode *inode,
                 struct timespec64 *ctime),

        TP_ARGS(inode, ctime),

        TP_STRUCT__entry(
                __field(dev_t,          dev)
                __field(ino_t,          ino)
                __field(time64_t,       ctime_s)
                __field(u32,            ctime_ns)
                __field(u32,            gen)
        ),

        TP_fast_assign(
                __entry->dev            = inode->i_sb->s_dev;
                __entry->ino            = inode->i_ino;
                __entry->gen            = inode->i_generation;
                __entry->ctime_s        = ctime->tv_sec;
                __entry->ctime_ns       = ctime->tv_nsec;
        ),

        TP_printk("ino=%d:%d:%ld:%u ctime=%lld.%u",
                MAJOR(__entry->dev), MINOR(__entry->dev), __entry->ino, __entry->gen,
                __entry->ctime_s, __entry->ctime_ns
        )
);

DEFINE_EVENT(ctime, inode_set_ctime_to_ts,
                TP_PROTO(struct inode *inode,
                         struct timespec64 *ctime),
                TP_ARGS(inode, ctime));

DEFINE_EVENT(ctime, ctime_xchg_skip,
                TP_PROTO(struct inode *inode,
                         struct timespec64 *ctime),
                TP_ARGS(inode, ctime));

TRACE_EVENT(ctime_ns_xchg,
        TP_PROTO(struct inode *inode,
                 u32 old,
                 u32 new,
                 u32 cur),

        TP_ARGS(inode, old, new, cur),

        TP_STRUCT__entry(
                __field(dev_t,          dev)
                __field(ino_t,          ino)
                __field(u32,            gen)
                __field(u32,            old)
                __field(u32,            new)
                __field(u32,            cur)
        ),

        TP_fast_assign(
                __entry->dev            = inode->i_sb->s_dev;
                __entry->ino            = inode->i_ino;
                __entry->gen            = inode->i_generation;
                __entry->old            = old;
                __entry->new            = new;
                __entry->cur            = cur;
        ),

        TP_printk("ino=%d:%d:%ld:%u old=%u:%s new=%u cur=%u:%s",
                MAJOR(__entry->dev), MINOR(__entry->dev), __entry->ino, __entry->gen,
                __entry->old & ~I_CTIME_QUERIED,
                __print_flags(__entry->old & I_CTIME_QUERIED, "|", CTIME_QUERIED_FLAGS),
                __entry->new,
                __entry->cur & ~I_CTIME_QUERIED,
                __print_flags(__entry->cur & I_CTIME_QUERIED, "|", CTIME_QUERIED_FLAGS)
        )
);

TRACE_EVENT(fill_mg_cmtime,
        TP_PROTO(struct inode *inode,
                 struct timespec64 *ctime,
                 struct timespec64 *mtime),

        TP_ARGS(inode, ctime, mtime),

        TP_STRUCT__entry(
                __field(dev_t,          dev)
                __field(ino_t,          ino)
                __field(time64_t,       ctime_s)
                __field(time64_t,       mtime_s)
                __field(u32,            ctime_ns)
                __field(u32,            mtime_ns)
                __field(u32,            gen)
        ),

        TP_fast_assign(
                __entry->dev            = inode->i_sb->s_dev;
                __entry->ino            = inode->i_ino;
                __entry->gen            = inode->i_generation;
                __entry->ctime_s        = ctime->tv_sec;
                __entry->mtime_s        = mtime->tv_sec;
                __entry->ctime_ns       = ctime->tv_nsec;
                __entry->mtime_ns       = mtime->tv_nsec;
        ),

        TP_printk("ino=%d:%d:%ld:%u ctime=%lld.%u mtime=%lld.%u",
                MAJOR(__entry->dev), MINOR(__entry->dev), __entry->ino, __entry->gen,
                __entry->ctime_s, __entry->ctime_ns,
                __entry->mtime_s, __entry->mtime_ns
        )
);
#endif /* _TRACE_TIMESTAMP_H */

/* This part must be outside protection */
#include <trace/define_trace.h>