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 { FL_IGN_DIR_CREATE, "FL_IGN_DIR_CREATE" }, \ 33 { FL_IGN_DIR_DELETE, "FL_IGN_DIR_DELETE" }, \ 34 { FL_IGN_DIR_RENAME, "FL_IGN_DIR_RENAME" }) 35 36 #define show_fl_type(val) \ 37 __print_symbolic(val, \ 38 { F_RDLCK, "F_RDLCK" }, \ 39 { F_WRLCK, "F_WRLCK" }, \ 40 { F_UNLCK, "F_UNLCK" }) 41 42 TRACE_EVENT(locks_get_lock_context, 43 TP_PROTO(struct inode *inode, int type, struct file_lock_context *ctx), 44 45 TP_ARGS(inode, type, ctx), 46 47 TP_STRUCT__entry( 48 __field(u64, i_ino) 49 __field(struct file_lock_context *, ctx) 50 __field(dev_t, s_dev) 51 __field(unsigned char, type) 52 ), 53 54 TP_fast_assign( 55 __entry->s_dev = inode->i_sb->s_dev; 56 __entry->i_ino = inode->i_ino; 57 __entry->type = type; 58 __entry->ctx = ctx; 59 ), 60 61 TP_printk("dev=0x%x:0x%x ino=0x%llx type=%s ctx=%p", 62 MAJOR(__entry->s_dev), MINOR(__entry->s_dev), 63 __entry->i_ino, show_fl_type(__entry->type), __entry->ctx) 64 ); 65 66 DECLARE_EVENT_CLASS(filelock_lock, 67 TP_PROTO(struct inode *inode, struct file_lock *fl, int ret), 68 69 TP_ARGS(inode, fl, ret), 70 71 TP_STRUCT__entry( 72 __field(u64, i_ino) 73 __field(loff_t, fl_start) 74 __field(loff_t, fl_end) 75 __field(struct file_lock *, fl) 76 __field(struct file_lock_core *, blocker) 77 __field(fl_owner_t, owner) 78 __field(dev_t, s_dev) 79 __field(unsigned int, pid) 80 __field(unsigned int, flags) 81 __field(unsigned char, type) 82 __field(int, ret) 83 ), 84 85 TP_fast_assign( 86 __entry->fl = fl ? fl : NULL; 87 __entry->s_dev = inode->i_sb->s_dev; 88 __entry->i_ino = inode->i_ino; 89 __entry->blocker = fl ? fl->c.flc_blocker : NULL; 90 __entry->owner = fl ? fl->c.flc_owner : NULL; 91 __entry->pid = fl ? fl->c.flc_pid : 0; 92 __entry->flags = fl ? fl->c.flc_flags : 0; 93 __entry->type = fl ? fl->c.flc_type : 0; 94 __entry->fl_start = fl ? fl->fl_start : 0; 95 __entry->fl_end = fl ? fl->fl_end : 0; 96 __entry->ret = ret; 97 ), 98 99 TP_printk("fl=%p dev=0x%x:0x%x ino=0x%llx fl_blocker=%p fl_owner=%p fl_pid=%u fl_flags=%s fl_type=%s fl_start=%lld fl_end=%lld ret=%d", 100 __entry->fl, MAJOR(__entry->s_dev), MINOR(__entry->s_dev), 101 __entry->i_ino, __entry->blocker, __entry->owner, 102 __entry->pid, show_fl_flags(__entry->flags), 103 show_fl_type(__entry->type), 104 __entry->fl_start, __entry->fl_end, __entry->ret) 105 ); 106 107 DEFINE_EVENT(filelock_lock, posix_lock_inode, 108 TP_PROTO(struct inode *inode, struct file_lock *fl, int ret), 109 TP_ARGS(inode, fl, ret)); 110 111 DEFINE_EVENT(filelock_lock, fcntl_setlk, 112 TP_PROTO(struct inode *inode, struct file_lock *fl, int ret), 113 TP_ARGS(inode, fl, ret)); 114 115 DEFINE_EVENT(filelock_lock, locks_remove_posix, 116 TP_PROTO(struct inode *inode, struct file_lock *fl, int ret), 117 TP_ARGS(inode, fl, ret)); 118 119 DEFINE_EVENT(filelock_lock, flock_lock_inode, 120 TP_PROTO(struct inode *inode, struct file_lock *fl, int ret), 121 TP_ARGS(inode, fl, ret)); 122 123 #define show_lease_break_flags(val) \ 124 __print_flags(val, "|", \ 125 { LEASE_BREAK_LEASE, "LEASE" }, \ 126 { LEASE_BREAK_DELEG, "DELEG" }, \ 127 { LEASE_BREAK_LAYOUT, "LAYOUT" }, \ 128 { LEASE_BREAK_NONBLOCK, "NONBLOCK" }, \ 129 { LEASE_BREAK_OPEN_RDONLY, "OPEN_RDONLY" }, \ 130 { LEASE_BREAK_DIR_CREATE, "DIR_CREATE" }, \ 131 { LEASE_BREAK_DIR_DELETE, "DIR_DELETE" }, \ 132 { LEASE_BREAK_DIR_RENAME, "DIR_RENAME" }) 133 134 TRACE_EVENT(break_lease, 135 TP_PROTO(struct inode *inode, unsigned int flags), 136 137 TP_ARGS(inode, flags), 138 139 TP_STRUCT__entry( 140 __field(unsigned long, i_ino) 141 __field(dev_t, s_dev) 142 __field(unsigned int, flags) 143 ), 144 145 TP_fast_assign( 146 __entry->s_dev = inode->i_sb->s_dev; 147 __entry->i_ino = inode->i_ino; 148 __entry->flags = flags; 149 ), 150 151 TP_printk("dev=0x%x:0x%x ino=0x%lx flags=%s", 152 MAJOR(__entry->s_dev), MINOR(__entry->s_dev), 153 __entry->i_ino, show_lease_break_flags(__entry->flags)) 154 ); 155 156 DECLARE_EVENT_CLASS(filelock_lease, 157 TP_PROTO(struct inode *inode, struct file_lease *fl), 158 159 TP_ARGS(inode, fl), 160 161 TP_STRUCT__entry( 162 __field(u64, i_ino) 163 __field(struct file_lease *, fl) 164 __field(struct file_lock_core *, blocker) 165 __field(fl_owner_t, owner) 166 __field(unsigned long, break_time) 167 __field(unsigned long, downgrade_time) 168 __field(dev_t, s_dev) 169 __field(unsigned int, flags) 170 __field(unsigned char, type) 171 ), 172 173 TP_fast_assign( 174 __entry->fl = fl ? fl : NULL; 175 __entry->s_dev = inode->i_sb->s_dev; 176 __entry->i_ino = inode->i_ino; 177 __entry->blocker = fl ? fl->c.flc_blocker : NULL; 178 __entry->owner = fl ? fl->c.flc_owner : NULL; 179 __entry->flags = fl ? fl->c.flc_flags : 0; 180 __entry->type = fl ? fl->c.flc_type : 0; 181 __entry->break_time = fl ? fl->fl_break_time : 0; 182 __entry->downgrade_time = fl ? fl->fl_downgrade_time : 0; 183 ), 184 185 TP_printk("fl=%p dev=0x%x:0x%x ino=0x%llx fl_blocker=%p fl_owner=%p fl_flags=%s fl_type=%s fl_break_time=%lu fl_downgrade_time=%lu", 186 __entry->fl, MAJOR(__entry->s_dev), MINOR(__entry->s_dev), 187 __entry->i_ino, __entry->blocker, __entry->owner, 188 show_fl_flags(__entry->flags), 189 show_fl_type(__entry->type), 190 __entry->break_time, __entry->downgrade_time) 191 ); 192 193 DEFINE_EVENT(filelock_lease, break_lease_noblock, TP_PROTO(struct inode *inode, struct file_lease *fl), 194 TP_ARGS(inode, fl)); 195 196 DEFINE_EVENT(filelock_lease, break_lease_block, TP_PROTO(struct inode *inode, struct file_lease *fl), 197 TP_ARGS(inode, fl)); 198 199 DEFINE_EVENT(filelock_lease, break_lease_unblock, TP_PROTO(struct inode *inode, struct file_lease *fl), 200 TP_ARGS(inode, fl)); 201 202 DEFINE_EVENT(filelock_lease, generic_delete_lease, TP_PROTO(struct inode *inode, struct file_lease *fl), 203 TP_ARGS(inode, fl)); 204 205 DEFINE_EVENT(filelock_lease, time_out_leases, TP_PROTO(struct inode *inode, struct file_lease *fl), 206 TP_ARGS(inode, fl)); 207 208 TRACE_EVENT(generic_add_lease, 209 TP_PROTO(struct inode *inode, struct file_lease *fl), 210 211 TP_ARGS(inode, fl), 212 213 TP_STRUCT__entry( 214 __field(u64, i_ino) 215 __field(fl_owner_t, owner) 216 __field(dev_t, s_dev) 217 __field(int, wcount) 218 __field(int, rcount) 219 __field(int, icount) 220 __field(unsigned int, flags) 221 __field(unsigned char, type) 222 ), 223 224 TP_fast_assign( 225 __entry->s_dev = inode->i_sb->s_dev; 226 __entry->i_ino = inode->i_ino; 227 __entry->wcount = atomic_read(&inode->i_writecount); 228 __entry->rcount = atomic_read(&inode->i_readcount); 229 __entry->icount = icount_read_once(inode); 230 __entry->owner = fl->c.flc_owner; 231 __entry->flags = fl->c.flc_flags; 232 __entry->type = fl->c.flc_type; 233 ), 234 235 TP_printk("dev=0x%x:0x%x ino=0x%llx wcount=%d rcount=%d icount=%d fl_owner=%p fl_flags=%s fl_type=%s", 236 MAJOR(__entry->s_dev), MINOR(__entry->s_dev), 237 __entry->i_ino, __entry->wcount, __entry->rcount, 238 __entry->icount, __entry->owner, 239 show_fl_flags(__entry->flags), 240 show_fl_type(__entry->type)) 241 ); 242 243 TRACE_EVENT(leases_conflict, 244 TP_PROTO(bool conflict, struct file_lease *lease, struct file_lease *breaker), 245 246 TP_ARGS(conflict, lease, breaker), 247 248 TP_STRUCT__entry( 249 __field(void *, lease) 250 __field(void *, breaker) 251 __field(unsigned int, l_fl_flags) 252 __field(unsigned int, b_fl_flags) 253 __field(unsigned char, l_fl_type) 254 __field(unsigned char, b_fl_type) 255 __field(bool, conflict) 256 ), 257 258 TP_fast_assign( 259 __entry->lease = lease; 260 __entry->l_fl_flags = lease->c.flc_flags; 261 __entry->l_fl_type = lease->c.flc_type; 262 __entry->breaker = breaker; 263 __entry->b_fl_flags = breaker->c.flc_flags; 264 __entry->b_fl_type = breaker->c.flc_type; 265 __entry->conflict = conflict; 266 ), 267 268 TP_printk("conflict %d: lease=%p fl_flags=%s fl_type=%s; breaker=%p fl_flags=%s fl_type=%s", 269 __entry->conflict, 270 __entry->lease, 271 show_fl_flags(__entry->l_fl_flags), 272 show_fl_type(__entry->l_fl_type), 273 __entry->breaker, 274 show_fl_flags(__entry->b_fl_flags), 275 show_fl_type(__entry->b_fl_type)) 276 ); 277 278 #endif /* _TRACE_FILELOCK_H */ 279 280 /* This part must be outside protection */ 281 #include <trace/define_trace.h> 282