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 87 #define IOMAP_TYPE_STRINGS \ 88 { IOMAP_HOLE, "HOLE" }, \ 89 { IOMAP_DELALLOC, "DELALLOC" }, \ 90 { IOMAP_MAPPED, "MAPPED" }, \ 91 { IOMAP_UNWRITTEN, "UNWRITTEN" }, \ 92 { IOMAP_INLINE, "INLINE" } 93 94 #define IOMAP_FLAGS_STRINGS \ 95 { IOMAP_WRITE, "WRITE" }, \ 96 { IOMAP_ZERO, "ZERO" }, \ 97 { IOMAP_REPORT, "REPORT" }, \ 98 { IOMAP_FAULT, "FAULT" }, \ 99 { IOMAP_DIRECT, "DIRECT" }, \ 100 { IOMAP_NOWAIT, "NOWAIT" } 101 102 #define IOMAP_F_FLAGS_STRINGS \ 103 { IOMAP_F_NEW, "NEW" }, \ 104 { IOMAP_F_DIRTY, "DIRTY" }, \ 105 { IOMAP_F_SHARED, "SHARED" }, \ 106 { IOMAP_F_MERGED, "MERGED" }, \ 107 { IOMAP_F_BUFFER_HEAD, "BH" }, \ 108 { IOMAP_F_SIZE_CHANGED, "SIZE_CHANGED" } 109 110 DECLARE_EVENT_CLASS(iomap_class, 111 TP_PROTO(struct inode *inode, struct iomap *iomap), 112 TP_ARGS(inode, iomap), 113 TP_STRUCT__entry( 114 __field(dev_t, dev) 115 __field(u64, ino) 116 __field(u64, addr) 117 __field(loff_t, offset) 118 __field(u64, length) 119 __field(u16, type) 120 __field(u16, flags) 121 __field(dev_t, bdev) 122 ), 123 TP_fast_assign( 124 __entry->dev = inode->i_sb->s_dev; 125 __entry->ino = inode->i_ino; 126 __entry->addr = iomap->addr; 127 __entry->offset = iomap->offset; 128 __entry->length = iomap->length; 129 __entry->type = iomap->type; 130 __entry->flags = iomap->flags; 131 __entry->bdev = iomap->bdev ? iomap->bdev->bd_dev : 0; 132 ), 133 TP_printk("dev %d:%d ino 0x%llx bdev %d:%d addr 0x%llx offset 0x%llx " 134 "length 0x%llx type %s flags %s", 135 MAJOR(__entry->dev), MINOR(__entry->dev), 136 __entry->ino, 137 MAJOR(__entry->bdev), MINOR(__entry->bdev), 138 __entry->addr, 139 __entry->offset, 140 __entry->length, 141 __print_symbolic(__entry->type, IOMAP_TYPE_STRINGS), 142 __print_flags(__entry->flags, "|", IOMAP_F_FLAGS_STRINGS)) 143 ) 144 145 #define DEFINE_IOMAP_EVENT(name) \ 146 DEFINE_EVENT(iomap_class, name, \ 147 TP_PROTO(struct inode *inode, struct iomap *iomap), \ 148 TP_ARGS(inode, iomap)) 149 DEFINE_IOMAP_EVENT(iomap_iter_dstmap); 150 DEFINE_IOMAP_EVENT(iomap_iter_srcmap); 151 152 TRACE_EVENT(iomap_iter, 153 TP_PROTO(struct iomap_iter *iter, const void *ops, 154 unsigned long caller), 155 TP_ARGS(iter, ops, caller), 156 TP_STRUCT__entry( 157 __field(dev_t, dev) 158 __field(u64, ino) 159 __field(loff_t, pos) 160 __field(u64, length) 161 __field(unsigned int, flags) 162 __field(const void *, ops) 163 __field(unsigned long, caller) 164 ), 165 TP_fast_assign( 166 __entry->dev = iter->inode->i_sb->s_dev; 167 __entry->ino = iter->inode->i_ino; 168 __entry->pos = iter->pos; 169 __entry->length = iomap_length(iter); 170 __entry->flags = iter->flags; 171 __entry->ops = ops; 172 __entry->caller = caller; 173 ), 174 TP_printk("dev %d:%d ino 0x%llx pos 0x%llx length 0x%llx flags %s (0x%x) ops %ps caller %pS", 175 MAJOR(__entry->dev), MINOR(__entry->dev), 176 __entry->ino, 177 __entry->pos, 178 __entry->length, 179 __print_flags(__entry->flags, "|", IOMAP_FLAGS_STRINGS), 180 __entry->flags, 181 __entry->ops, 182 (void *)__entry->caller) 183 ); 184 185 #endif /* _IOMAP_TRACE_H */ 186 187 #undef TRACE_INCLUDE_PATH 188 #define TRACE_INCLUDE_PATH . 189 #define TRACE_INCLUDE_FILE trace 190 #include <trace/define_trace.h> 191