cregit-Linux how code gets into the kernel

Release 4.7 include/trace/events/filelock.h

/*
 * Events for filesystem locks
 *
 * Copyright 2013 Jeff Layton <jlayton@poochiereds.net>
 */

#undef TRACE_SYSTEM

#define TRACE_SYSTEM filelock

#if !defined(_TRACE_FILELOCK_H) || defined(TRACE_HEADER_MULTI_READ)

#define _TRACE_FILELOCK_H

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


#define show_fl_flags(val)						\
	__print_flags(val, "|",                                         \
                { FL_POSIX,             "FL_POSIX" },                   \
                { FL_FLOCK,             "FL_FLOCK" },                   \
                { FL_DELEG,             "FL_DELEG" },                   \
                { FL_ACCESS,            "FL_ACCESS" },                  \
                { FL_EXISTS,            "FL_EXISTS" },                  \
                { FL_LEASE,             "FL_LEASE" },                   \
                { FL_CLOSE,             "FL_CLOSE" },                   \
                { FL_SLEEP,             "FL_SLEEP" },                   \
                { FL_DOWNGRADE_PENDING, "FL_DOWNGRADE_PENDING" },       \
                { FL_UNLOCK_PENDING,    "FL_UNLOCK_PENDING" },          \
                { FL_OFDLCK,            "FL_OFDLCK" })


#define show_fl_type(val)				\
	__print_symbolic(val,                           \
                        { F_RDLCK, "F_RDLCK" },         \
                        { F_WRLCK, "F_WRLCK" },         \
                        { F_UNLCK, "F_UNLCK" })

TRACE_EVENT(locks_get_lock_context,
	TP_PROTO(struct inode *inode, int type, struct file_lock_context *ctx),

	TP_ARGS(inode, type, ctx),

	TP_STRUCT__entry(
                __field(unsigned long, i_ino)
                __field(dev_t, s_dev)
                __field(unsigned char, type)
                __field(struct file_lock_context *, ctx)
        ),

	TP_fast_assign(
                __entry->s_dev = inode->i_sb->s_dev;
                __entry->i_ino = inode->i_ino;
                __entry->type = type;
                __entry->ctx = ctx;
        ),

	TP_printk("dev=0x%x:0x%x ino=0x%lx type=%s ctx=%p",
                  MAJOR(__entry->s_dev), MINOR(__entry->s_dev),
                  __entry->i_ino, show_fl_type(__entry->type), __entry->ctx)
);

DECLARE_EVENT_CLASS(filelock_lock,
	TP_PROTO(struct inode *inode, struct file_lock *fl, int ret),

	TP_ARGS(inode, fl, ret),

	TP_STRUCT__entry(
                __field(struct file_lock *, fl)
                __field(unsigned long, i_ino)
                __field(dev_t, s_dev)
                __field(struct file_lock *, fl_next)
                __field(fl_owner_t, fl_owner)
                __field(unsigned int, fl_pid)
                __field(unsigned int, fl_flags)
                __field(unsigned char, fl_type)
                __field(loff_t, fl_start)
                __field(loff_t, fl_end)
                __field(int, ret)
        ),

	TP_fast_assign(
                __entry->fl = fl ? fl : NULL;
                __entry->s_dev = inode->i_sb->s_dev;
                __entry->i_ino = inode->i_ino;
                __entry->fl_next = fl ? fl->fl_next : NULL;
                __entry->fl_owner = fl ? fl->fl_owner : NULL;
                __entry->fl_pid = fl ? fl->fl_pid : 0;
                __entry->fl_flags = fl ? fl->fl_flags : 0;
                __entry->fl_type = fl ? fl->fl_type : 0;
                __entry->fl_start = fl ? fl->fl_start : 0;
                __entry->fl_end = fl ? fl->fl_end : 0;
                __entry->ret = ret;
        ),

	TP_printk("fl=0x%p dev=0x%x:0x%x ino=0x%lx fl_next=0x%p fl_owner=0x%p fl_pid=%u fl_flags=%s fl_type=%s fl_start=%lld fl_end=%lld ret=%d",
                __entry->fl, MAJOR(__entry->s_dev), MINOR(__entry->s_dev),
                __entry->i_ino, __entry->fl_next, __entry->fl_owner,
                __entry->fl_pid, show_fl_flags(__entry->fl_flags),
                show_fl_type(__entry->fl_type),
                __entry->fl_start, __entry->fl_end, __entry->ret)
);

DEFINE_EVENT(filelock_lock, posix_lock_inode,
		TP_PROTO(struct inode *inode, struct file_lock *fl, int ret),
		TP_ARGS(inode, fl, ret));

DEFINE_EVENT(filelock_lock, fcntl_setlk,
		TP_PROTO(struct inode *inode, struct file_lock *fl, int ret),
		TP_ARGS(inode, fl, ret));

DEFINE_EVENT(filelock_lock, locks_remove_posix,
		TP_PROTO(struct inode *inode, struct file_lock *fl, int ret),
		TP_ARGS(inode, fl, ret));

DECLARE_EVENT_CLASS(filelock_lease,

	TP_PROTO(struct inode *inode, struct file_lock *fl),

	TP_ARGS(inode, fl),

	TP_STRUCT__entry(
                __field(struct file_lock *, fl)
                __field(unsigned long, i_ino)
                __field(dev_t, s_dev)
                __field(struct file_lock *, fl_next)
                __field(fl_owner_t, fl_owner)
                __field(unsigned int, fl_flags)
                __field(unsigned char, fl_type)
                __field(unsigned long, fl_break_time)
                __field(unsigned long, fl_downgrade_time)
        ),

	TP_fast_assign(
                __entry->fl = fl ? fl : NULL;
                __entry->s_dev = inode->i_sb->s_dev;
                __entry->i_ino = inode->i_ino;
                __entry->fl_next = fl ? fl->fl_next : NULL;
                __entry->fl_owner = fl ? fl->fl_owner : NULL;
                __entry->fl_flags = fl ? fl->fl_flags : 0;
                __entry->fl_type = fl ? fl->fl_type : 0;
                __entry->fl_break_time = fl ? fl->fl_break_time : 0;
                __entry->fl_downgrade_time = fl ? fl->fl_downgrade_time : 0;
        ),

	TP_printk("fl=0x%p dev=0x%x:0x%x ino=0x%lx fl_next=0x%p fl_owner=0x%p fl_flags=%s fl_type=%s fl_break_time=%lu fl_downgrade_time=%lu",
                __entry->fl, MAJOR(__entry->s_dev), MINOR(__entry->s_dev),
                __entry->i_ino, __entry->fl_next, __entry->fl_owner,
                show_fl_flags(__entry->fl_flags),
                show_fl_type(__entry->fl_type),
                __entry->fl_break_time, __entry->fl_downgrade_time)
);

DEFINE_EVENT(filelock_lease, break_lease_noblock, TP_PROTO(struct inode *inode, struct file_lock *fl),
		TP_ARGS(inode, fl));

DEFINE_EVENT(filelock_lease, break_lease_block, TP_PROTO(struct inode *inode, struct file_lock *fl),
		TP_ARGS(inode, fl));

DEFINE_EVENT(filelock_lease, break_lease_unblock, TP_PROTO(struct inode *inode, struct file_lock *fl),
		TP_ARGS(inode, fl));

DEFINE_EVENT(filelock_lease, generic_delete_lease, TP_PROTO(struct inode *inode, struct file_lock *fl),
		TP_ARGS(inode, fl));

DEFINE_EVENT(filelock_lease, time_out_leases, TP_PROTO(struct inode *inode, struct file_lock *fl),
		TP_ARGS(inode, fl));

TRACE_EVENT(generic_add_lease,
	TP_PROTO(struct inode *inode, struct file_lock *fl),

	TP_ARGS(inode, fl),

	TP_STRUCT__entry(
                __field(unsigned long, i_ino)
                __field(int, wcount)
                __field(int, dcount)
                __field(int, icount)
                __field(dev_t, s_dev)
                __field(fl_owner_t, fl_owner)
                __field(unsigned int, fl_flags)
                __field(unsigned char, fl_type)
        ),

	TP_fast_assign(
                __entry->s_dev = inode->i_sb->s_dev;
                __entry->i_ino = inode->i_ino;
                __entry->wcount = atomic_read(&inode->i_writecount);
                __entry->dcount = d_count(fl->fl_file->f_path.dentry);
                __entry->icount = atomic_read(&inode->i_count);
                __entry->fl_owner = fl ? fl->fl_owner : NULL;
                __entry->fl_flags = fl ? fl->fl_flags : 0;
                __entry->fl_type = fl ? fl->fl_type : 0;
        ),

	TP_printk("dev=0x%x:0x%x ino=0x%lx wcount=%d dcount=%d icount=%d fl_owner=0x%p fl_flags=%s fl_type=%s",
                MAJOR(__entry->s_dev), MINOR(__entry->s_dev),
                __entry->i_ino, __entry->wcount, __entry->dcount,
                __entry->icount, __entry->fl_owner,
                show_fl_flags(__entry->fl_flags),
                show_fl_type(__entry->fl_type))
);

#endif /* _TRACE_FILELOCK_H */

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

Overall Contributors

PersonTokensPropCommitsCommitProp
jeff laytonjeff layton358100.00%4100.00%
Total358100.00%4100.00%
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