fs/iomap/trace.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * Copyright (c) 2009-2021 Christoph Hellwig
   4  *
   5  * NOTE: none of these tracepoints shall be considered a stable kernel ABI
   6  * as they can change at any time.
   7  *
   8  * Current conventions for printing numbers measuring specific units:
   9  *
  10  * offset: byte offset into a subcomponent of a file operation
  11  * pos: file offset, in bytes
  12  * length: length of a file operation, in bytes
  13  * ino: inode number
  14  *
  15  * Numbers describing space allocations should be formatted in hexadecimal.
  16  */
  17 #undef TRACE_SYSTEM
  18 #define TRACE_SYSTEM iomap
  19
  20 #if !defined(_IOMAP_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
  21 #define _IOMAP_TRACE_H
  22
  23 #include <linux/tracepoint.h>
  24
  25 struct inode;
  26
  27 DECLARE_EVENT_CLASS(iomap_readpage_class,
  28         TP_PROTO(struct inode *inode, int nr_pages),
  29         TP_ARGS(inode, nr_pages),
  30         TP_STRUCT__entry(
  31                 __field(dev_t, dev)
  32                 __field(u64, ino)
  33                 __field(int, nr_pages)
  34         ),
  35         TP_fast_assign(
  36                 __entry->dev = inode->i_sb->s_dev;
  37                 __entry->ino = inode->i_ino;
  38                 __entry->nr_pages = nr_pages;
  39         ),
  40         TP_printk("dev %d:%d ino 0x%llx nr_pages %d",
  41                   MAJOR(__entry->dev), MINOR(__entry->dev),
  42                   __entry->ino,
  43                   __entry->nr_pages)
  44 )
  45
  46 #define DEFINE_READPAGE_EVENT(name)             \
  47 DEFINE_EVENT(iomap_readpage_class, name,        \
  48         TP_PROTO(struct inode *inode, int nr_pages), \
  49         TP_ARGS(inode, nr_pages))
  50 DEFINE_READPAGE_EVENT(iomap_readpage);
  51 DEFINE_READPAGE_EVENT(iomap_readahead);
  52
  53 DECLARE_EVENT_CLASS(iomap_range_class,
  54         TP_PROTO(struct inode *inode, loff_t off, u64 len),
  55         TP_ARGS(inode, off, len),
  56         TP_STRUCT__entry(
  57                 __field(dev_t, dev)
  58                 __field(u64, ino)
  59                 __field(loff_t, size)
  60                 __field(loff_t, offset)
  61                 __field(u64, length)
  62         ),
  63         TP_fast_assign(
  64                 __entry->dev = inode->i_sb->s_dev;
  65                 __entry->ino = inode->i_ino;
  66                 __entry->size = i_size_read(inode);
  67                 __entry->offset = off;
  68                 __entry->length = len;
  69         ),
  70         TP_printk("dev %d:%d ino 0x%llx size 0x%llx offset 0x%llx length 0x%llx",
  71                   MAJOR(__entry->dev), MINOR(__entry->dev),
  72                   __entry->ino,
  73                   __entry->size,
  74                   __entry->offset,
  75                   __entry->length)
  76 )
  77
  78 #define DEFINE_RANGE_EVENT(name)                \
  79 DEFINE_EVENT(iomap_range_class, name,   \
  80         TP_PROTO(struct inode *inode, loff_t off, u64 len),\
  81         TP_ARGS(inode, off, len))
  82 DEFINE_RANGE_EVENT(iomap_writepage);
  83 DEFINE_RANGE_EVENT(iomap_release_folio);
  84 DEFINE_RANGE_EVENT(iomap_invalidate_folio);
  85 DEFINE_RANGE_EVENT(iomap_dio_invalidate_fail);
  86 DEFINE_RANGE_EVENT(iomap_dio_rw_queued);
  87
  88 #define IOMAP_TYPE_STRINGS \
  89         { IOMAP_HOLE,           "HOLE" }, \
  90         { IOMAP_DELALLOC,       "DELALLOC" }, \
  91         { IOMAP_MAPPED,         "MAPPED" }, \
  92         { IOMAP_UNWRITTEN,      "UNWRITTEN" }, \
  93         { IOMAP_INLINE,         "INLINE" }
  94
  95 #define IOMAP_FLAGS_STRINGS \
  96         { IOMAP_WRITE,          "WRITE" }, \
  97         { IOMAP_ZERO,           "ZERO" }, \
  98         { IOMAP_REPORT,         "REPORT" }, \
  99         { IOMAP_FAULT,          "FAULT" }, \
 100         { IOMAP_DIRECT,         "DIRECT" }, \
 101         { IOMAP_NOWAIT,         "NOWAIT" }
 102
 103 #define IOMAP_F_FLAGS_STRINGS \
 104         { IOMAP_F_NEW,          "NEW" }, \
 105         { IOMAP_F_DIRTY,        "DIRTY" }, \
 106         { IOMAP_F_SHARED,       "SHARED" }, \
 107         { IOMAP_F_MERGED,       "MERGED" }, \
 108         { IOMAP_F_BUFFER_HEAD,  "BH" }, \
 109         { IOMAP_F_SIZE_CHANGED, "SIZE_CHANGED" }
 110
 111 #define IOMAP_DIO_STRINGS \
 112         {IOMAP_DIO_FORCE_WAIT,  "DIO_FORCE_WAIT" }, \
 113         {IOMAP_DIO_OVERWRITE_ONLY, "DIO_OVERWRITE_ONLY" }, \
 114         {IOMAP_DIO_PARTIAL,     "DIO_PARTIAL" }
 115
 116 DECLARE_EVENT_CLASS(iomap_class,
 117         TP_PROTO(struct inode *inode, struct iomap *iomap),
 118         TP_ARGS(inode, iomap),
 119         TP_STRUCT__entry(
 120                 __field(dev_t, dev)
 121                 __field(u64, ino)
 122                 __field(u64, addr)
 123                 __field(loff_t, offset)
 124                 __field(u64, length)
 125                 __field(u16, type)
 126                 __field(u16, flags)
 127                 __field(dev_t, bdev)
 128         ),
 129         TP_fast_assign(
 130                 __entry->dev = inode->i_sb->s_dev;
 131                 __entry->ino = inode->i_ino;
 132                 __entry->addr = iomap->addr;
 133                 __entry->offset = iomap->offset;
 134                 __entry->length = iomap->length;
 135                 __entry->type = iomap->type;
 136                 __entry->flags = iomap->flags;
 137                 __entry->bdev = iomap->bdev ? iomap->bdev->bd_dev : 0;
 138         ),
 139         TP_printk("dev %d:%d ino 0x%llx bdev %d:%d addr 0x%llx offset 0x%llx "
 140                   "length 0x%llx type %s flags %s",
 141                   MAJOR(__entry->dev), MINOR(__entry->dev),
 142                   __entry->ino,
 143                   MAJOR(__entry->bdev), MINOR(__entry->bdev),
 144                   __entry->addr,
 145                   __entry->offset,
 146                   __entry->length,
 147                   __print_symbolic(__entry->type, IOMAP_TYPE_STRINGS),
 148                   __print_flags(__entry->flags, "|", IOMAP_F_FLAGS_STRINGS))
 149 )
 150
 151 #define DEFINE_IOMAP_EVENT(name)                \
 152 DEFINE_EVENT(iomap_class, name, \
 153         TP_PROTO(struct inode *inode, struct iomap *iomap), \
 154         TP_ARGS(inode, iomap))
 155 DEFINE_IOMAP_EVENT(iomap_iter_dstmap);
 156 DEFINE_IOMAP_EVENT(iomap_iter_srcmap);
 157 DEFINE_IOMAP_EVENT(iomap_writepage_map);
 158
 159 TRACE_EVENT(iomap_iter,
 160         TP_PROTO(struct iomap_iter *iter, const void *ops,
 161                  unsigned long caller),
 162         TP_ARGS(iter, ops, caller),
 163         TP_STRUCT__entry(
 164                 __field(dev_t, dev)
 165                 __field(u64, ino)
 166                 __field(loff_t, pos)
 167                 __field(u64, length)
 168                 __field(unsigned int, flags)
 169                 __field(const void *, ops)
 170                 __field(unsigned long, caller)
 171         ),
 172         TP_fast_assign(
 173                 __entry->dev = iter->inode->i_sb->s_dev;
 174                 __entry->ino = iter->inode->i_ino;
 175                 __entry->pos = iter->pos;
 176                 __entry->length = iomap_length(iter);
 177                 __entry->flags = iter->flags;
 178                 __entry->ops = ops;
 179                 __entry->caller = caller;
 180         ),
 181         TP_printk("dev %d:%d ino 0x%llx pos 0x%llx length 0x%llx flags %s (0x%x) ops %ps caller %pS",
 182                   MAJOR(__entry->dev), MINOR(__entry->dev),
 183                    __entry->ino,
 184                    __entry->pos,
 185                    __entry->length,
 186                    __print_flags(__entry->flags, "|", IOMAP_FLAGS_STRINGS),
 187                    __entry->flags,
 188                    __entry->ops,
 189                    (void *)__entry->caller)
 190 );
 191
 192 TRACE_EVENT(iomap_dio_rw_begin,
 193         TP_PROTO(struct kiocb *iocb, struct iov_iter *iter,
 194                  unsigned int dio_flags, size_t done_before),
 195         TP_ARGS(iocb, iter, dio_flags, done_before),
 196         TP_STRUCT__entry(
 197                 __field(dev_t,  dev)
 198                 __field(ino_t,  ino)
 199                 __field(loff_t, isize)
 200                 __field(loff_t, pos)
 201                 __field(size_t, count)
 202                 __field(size_t, done_before)
 203                 __field(int,    ki_flags)
 204                 __field(unsigned int,   dio_flags)
 205                 __field(bool,   aio)
 206         ),
 207         TP_fast_assign(
 208                 __entry->dev = file_inode(iocb->ki_filp)->i_sb->s_dev;
 209                 __entry->ino = file_inode(iocb->ki_filp)->i_ino;
 210                 __entry->isize = file_inode(iocb->ki_filp)->i_size;
 211                 __entry->pos = iocb->ki_pos;
 212                 __entry->count = iov_iter_count(iter);
 213                 __entry->done_before = done_before;
 214                 __entry->ki_flags = iocb->ki_flags;
 215                 __entry->dio_flags = dio_flags;
 216                 __entry->aio = !is_sync_kiocb(iocb);
 217         ),
 218         TP_printk("dev %d:%d ino 0x%lx size 0x%llx offset 0x%llx length 0x%zx done_before 0x%zx flags %s dio_flags %s aio %d",
 219                   MAJOR(__entry->dev), MINOR(__entry->dev),
 220                   __entry->ino,
 221                   __entry->isize,
 222                   __entry->pos,
 223                   __entry->count,
 224                   __entry->done_before,
 225                   __print_flags(__entry->ki_flags, "|", TRACE_IOCB_STRINGS),
 226                   __print_flags(__entry->dio_flags, "|", IOMAP_DIO_STRINGS),
 227                   __entry->aio)
 228 );
 229
 230 TRACE_EVENT(iomap_dio_complete,
 231         TP_PROTO(struct kiocb *iocb, int error, ssize_t ret),
 232         TP_ARGS(iocb, error, ret),
 233         TP_STRUCT__entry(
 234                 __field(dev_t,  dev)
 235                 __field(ino_t,  ino)
 236                 __field(loff_t, isize)
 237                 __field(loff_t, pos)
 238                 __field(int,    ki_flags)
 239                 __field(bool,   aio)
 240                 __field(int,    error)
 241                 __field(ssize_t, ret)
 242         ),
 243         TP_fast_assign(
 244                 __entry->dev = file_inode(iocb->ki_filp)->i_sb->s_dev;
 245                 __entry->ino = file_inode(iocb->ki_filp)->i_ino;
 246                 __entry->isize = file_inode(iocb->ki_filp)->i_size;
 247                 __entry->pos = iocb->ki_pos;
 248                 __entry->ki_flags = iocb->ki_flags;
 249                 __entry->aio = !is_sync_kiocb(iocb);
 250                 __entry->error = error;
 251                 __entry->ret = ret;
 252         ),
 253         TP_printk("dev %d:%d ino 0x%lx size 0x%llx offset 0x%llx flags %s aio %d error %d ret %zd",
 254                   MAJOR(__entry->dev), MINOR(__entry->dev),
 255                   __entry->ino,
 256                   __entry->isize,
 257                   __entry->pos,
 258                   __print_flags(__entry->ki_flags, "|", TRACE_IOCB_STRINGS),
 259                   __entry->aio,
 260                   __entry->error,
 261                   __entry->ret)
 262 );
 263
 264 #endif /* _IOMAP_TRACE_H */
 265
 266 #undef TRACE_INCLUDE_PATH
 267 #define TRACE_INCLUDE_PATH .
 268 #define TRACE_INCLUDE_FILE trace
 269 #include <trace/define_trace.h>