1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * Events for filesystem locks 4 * 5 * Copyright 2013 Jeff Layton <jlayton@poochiereds.net> 6 */ 7 #undef TRACE_SYSTEM 8 #define TRACE_SYSTEM filelock 9 10 #if !defined(_TRACE_FILELOCK_H) || defined(TRACE_HEADER_MULTI_READ) 11 #define _TRACE_FILELOCK_H 12 13 #include <linux/tracepoint.h> 14 #include <linux/fs.h> 15 #include <linux/device.h> 16 #include <linux/kdev_t.h> 17 18 #define show_fl_flags(val) \ 19 __print_flags(val, "|", \ 20 { FL_POSIX, "FL_POSIX" }, \ 21 { FL_FLOCK, "FL_FLOCK" }, \ 22 { FL_DELEG, "FL_DELEG" }, \ 23 { FL_ACCESS, "FL_ACCESS" }, \ 24 { FL_EXISTS, "FL_EXISTS" }, \ 25 { FL_LEASE, "FL_LEASE" }, \ 26 { FL_CLOSE, "FL_CLOSE" }, \ 27 { FL_SLEEP, "FL_SLEEP" }, \ 28 { FL_DOWNGRADE_PENDING, "FL_DOWNGRADE_PENDING" }, \ 29 { FL_UNLOCK_PENDING, "FL_UNLOCK_PENDING" }, \ 30 { FL_OFDLCK, "FL_OFDLCK" }, \ 31 { FL_RECLAIM, "FL_RECLAIM"}) 32 33 #define show_fl_type(val) \ 34 __print_symbolic(val, \ 35 { F_RDLCK, "F_RDLCK" }, \ 36 { F_WRLCK, "F_WRLCK" }, \ 37 { F_UNLCK, "F_UNLCK" }) 38 39 TRACE_EVENT(locks_get_lock_context, 40 TP_PROTO(struct inode *inode, int type, struct file_lock_context *ctx), 41 42 TP_ARGS(inode, type, ctx), 43 44 TP_STRUCT__entry( 45 __field(unsigned long, i_ino) 46 __field(dev_t, s_dev) 47 __field(unsigned char, type) 48 __field(struct file_lock_context *, ctx) 49 ), 50 51 TP_fast_assign( 52 __entry->s_dev = inode->i_sb->s_dev; 53 __entry->i_ino = inode->i_ino; 54 __entry->type = type; 55 __entry->ctx = ctx; 56 ), 57 58 TP_printk("dev=0x%x:0x%x ino=0x%lx type=%s ctx=%p", 59 MAJOR(__entry->s_dev), MINOR(__entry->s_dev), 60 __entry->i_ino, show_fl_type(__entry->type), __entry->ctx) 61 ); 62 63 DECLARE_EVENT_CLASS(filelock_lock, 64 TP_PROTO(struct inode *inode, struct file_lock *fl, int ret), 65 66 TP_ARGS(inode, fl, ret), 67 68 TP_STRUCT__entry( 69 __field(struct file_lock *, fl) 70 __field(unsigned long, i_ino) 71 __field(dev_t, s_dev) 72 __field(struct file_lock_core *, blocker) 73 __field(fl_owner_t, owner) 74 __field(unsigned int, pid) 75 __field(unsigned int, flags) 76 __field(unsigned char, type) 77 __field(loff_t, fl_start) 78 __field(loff_t, fl_end) 79 __field(int, ret) 80 ), 81 82 TP_fast_assign( 83 __entry->fl = fl ? fl : NULL; 84 __entry->s_dev = inode->i_sb->s_dev; 85 __entry->i_ino = inode->i_ino; 86 __entry->blocker = fl ? fl->c.flc_blocker : NULL; 87 __entry->owner = fl ? fl->c.flc_owner : NULL; 88 __entry->pid = fl ? fl->c.flc_pid : 0; 89 __entry->flags = fl ? fl->c.flc_flags : 0; 90 __entry->type = fl ? fl->c.flc_type : 0; 91 __entry->fl_start = fl ? fl->fl_start : 0; 92 __entry->fl_end = fl ? fl->fl_end : 0; 93 __entry->ret = ret; 94 ), 95 96 TP_printk("fl=%p dev=0x%x:0x%x ino=0x%lx fl_blocker=%p fl_owner=%p fl_pid=%u fl_flags=%s fl_type=%s fl_start=%lld fl_end=%lld ret=%d", 97 __entry->fl, MAJOR(__entry->s_dev), MINOR(__entry->s_dev), 98 __entry->i_ino, __entry->blocker, __entry->owner, 99 __entry->pid, show_fl_flags(__entry->flags), 100 show_fl_type(__entry->type), 101 __entry->fl_start, __entry->fl_end, __entry->ret) 102 ); 103 104 DEFINE_EVENT(filelock_lock, posix_lock_inode, 105 TP_PROTO(struct inode *inode, struct file_lock *fl, int ret), 106 TP_ARGS(inode, fl, ret)); 107 108 DEFINE_EVENT(filelock_lock, fcntl_setlk, 109 TP_PROTO(struct inode *inode, struct file_lock *fl, int ret), 110 TP_ARGS(inode, fl, ret)); 111 112 DEFINE_EVENT(filelock_lock, locks_remove_posix, 113 TP_PROTO(struct inode *inode, struct file_lock *fl, int ret), 114 TP_ARGS(inode, fl, ret)); 115 116 DEFINE_EVENT(filelock_lock, flock_lock_inode, 117 TP_PROTO(struct inode *inode, struct file_lock *fl, int ret), 118 TP_ARGS(inode, fl, ret)); 119 120 DECLARE_EVENT_CLASS(filelock_lease, 121 TP_PROTO(struct inode *inode, struct file_lease *fl), 122 123 TP_ARGS(inode, fl), 124 125 TP_STRUCT__entry( 126 __field(struct file_lease *, fl) 127 __field(unsigned long, i_ino) 128 __field(dev_t, s_dev) 129 __field(struct file_lock_core *, blocker) 130 __field(fl_owner_t, owner) 131 __field(unsigned int, flags) 132 __field(unsigned char, type) 133 __field(unsigned long, break_time) 134 __field(unsigned long, downgrade_time) 135 ), 136 137 TP_fast_assign( 138 __entry->fl = fl ? fl : NULL; 139 __entry->s_dev = inode->i_sb->s_dev; 140 __entry->i_ino = inode->i_ino; 141 __entry->blocker = fl ? fl->c.flc_blocker : NULL; 142 __entry->owner = fl ? fl->c.flc_owner : NULL; 143 __entry->flags = fl ? fl->c.flc_flags : 0; 144 __entry->type = fl ? fl->c.flc_type : 0; 145 __entry->break_time = fl ? fl->fl_break_time : 0; 146 __entry->downgrade_time = fl ? fl->fl_downgrade_time : 0; 147 ), 148 149 TP_printk("fl=%p dev=0x%x:0x%x ino=0x%lx fl_blocker=%p fl_owner=%p fl_flags=%s fl_type=%s fl_break_time=%lu fl_downgrade_time=%lu", 150 __entry->fl, MAJOR(__entry->s_dev), MINOR(__entry->s_dev), 151 __entry->i_ino, __entry->blocker, __entry->owner, 152 show_fl_flags(__entry->flags), 153 show_fl_type(__entry->type), 154 __entry->break_time, __entry->downgrade_time) 155 ); 156 157 DEFINE_EVENT(filelock_lease, break_lease_noblock, TP_PROTO(struct inode *inode, struct file_lease *fl), 158 TP_ARGS(inode, fl)); 159 160 DEFINE_EVENT(filelock_lease, break_lease_block, TP_PROTO(struct inode *inode, struct file_lease *fl), 161 TP_ARGS(inode, fl)); 162 163 DEFINE_EVENT(filelock_lease, break_lease_unblock, TP_PROTO(struct inode *inode, struct file_lease *fl), 164 TP_ARGS(inode, fl)); 165 166 DEFINE_EVENT(filelock_lease, generic_delete_lease, TP_PROTO(struct inode *inode, struct file_lease *fl), 167 TP_ARGS(inode, fl)); 168 169 DEFINE_EVENT(filelock_lease, time_out_leases, TP_PROTO(struct inode *inode, struct file_lease *fl), 170 TP_ARGS(inode, fl)); 171 172 TRACE_EVENT(generic_add_lease, 173 TP_PROTO(struct inode *inode, struct file_lease *fl), 174 175 TP_ARGS(inode, fl), 176 177 TP_STRUCT__entry( 178 __field(unsigned long, i_ino) 179 __field(int, wcount) 180 __field(int, rcount) 181 __field(int, icount) 182 __field(dev_t, s_dev) 183 __field(fl_owner_t, owner) 184 __field(unsigned int, flags) 185 __field(unsigned char, type) 186 ), 187 188 TP_fast_assign( 189 __entry->s_dev = inode->i_sb->s_dev; 190 __entry->i_ino = inode->i_ino; 191 __entry->wcount = atomic_read(&inode->i_writecount); 192 __entry->rcount = atomic_read(&inode->i_readcount); 193 __entry->icount = icount_read(inode); 194 __entry->owner = fl->c.flc_owner; 195 __entry->flags = fl->c.flc_flags; 196 __entry->type = fl->c.flc_type; 197 ), 198 199 TP_printk("dev=0x%x:0x%x ino=0x%lx wcount=%d rcount=%d icount=%d fl_owner=%p fl_flags=%s fl_type=%s", 200 MAJOR(__entry->s_dev), MINOR(__entry->s_dev), 201 __entry->i_ino, __entry->wcount, __entry->rcount, 202 __entry->icount, __entry->owner, 203 show_fl_flags(__entry->flags), 204 show_fl_type(__entry->type)) 205 ); 206 207 TRACE_EVENT(leases_conflict, 208 TP_PROTO(bool conflict, struct file_lease *lease, struct file_lease *breaker), 209 210 TP_ARGS(conflict, lease, breaker), 211 212 TP_STRUCT__entry( 213 __field(void *, lease) 214 __field(void *, breaker) 215 __field(unsigned int, l_fl_flags) 216 __field(unsigned int, b_fl_flags) 217 __field(unsigned char, l_fl_type) 218 __field(unsigned char, b_fl_type) 219 __field(bool, conflict) 220 ), 221 222 TP_fast_assign( 223 __entry->lease = lease; 224 __entry->l_fl_flags = lease->c.flc_flags; 225 __entry->l_fl_type = lease->c.flc_type; 226 __entry->breaker = breaker; 227 __entry->b_fl_flags = breaker->c.flc_flags; 228 __entry->b_fl_type = breaker->c.flc_type; 229 __entry->conflict = conflict; 230 ), 231 232 TP_printk("conflict %d: lease=%p fl_flags=%s fl_type=%s; breaker=%p fl_flags=%s fl_type=%s", 233 __entry->conflict, 234 __entry->lease, 235 show_fl_flags(__entry->l_fl_flags), 236 show_fl_type(__entry->l_fl_type), 237 __entry->breaker, 238 show_fl_flags(__entry->b_fl_flags), 239 show_fl_type(__entry->b_fl_type)) 240 ); 241 242 #endif /* _TRACE_FILELOCK_H */ 243 244 /* This part must be outside protection */ 245 #include <trace/define_trace.h> 246