| 1 |
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| 2 | #undef TRACE_SYSTEM
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| 3 | #define TRACE_SYSTEM readahead
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| 4 |
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| 5 | #if !defined(_TRACE_FILEMAP_H) || defined(TRACE_HEADER_MULTI_READ)
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| 6 | #define _TRACE_READAHEAD_H
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| 7 |
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| 8 | #include <linux/types.h>
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| 9 | #include <linux/tracepoint.h>
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| 10 | #include <linux/mm.h>
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| 11 | #include <linux/fs.h>
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| 12 | #include <linux/pagemap.h>
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| 13 |
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| 14 | TRACE_EVENT(page_cache_ra_unbounded,
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| 15 | TP_PROTO(struct inode *inode, pgoff_t index, unsigned long nr_to_read,
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| 16 | unsigned long lookahead_size),
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| 17 |
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| 18 | TP_ARGS(inode, index, nr_to_read, lookahead_size),
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| 19 |
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| 20 | TP_STRUCT__entry(
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| 21 | __field(u64, i_ino)
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| 22 | __field(dev_t, s_dev)
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| 23 | __field(pgoff_t, index)
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| 24 | __field(unsigned long, nr_to_read)
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| 25 | __field(unsigned long, lookahead_size)
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| 26 | ),
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| 27 |
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| 28 | TP_fast_assign(
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| 29 | __entry->i_ino = inode->i_ino;
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| 30 | __entry->s_dev = inode->i_sb->s_dev;
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| 31 | __entry->index = index;
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| 32 | __entry->nr_to_read = nr_to_read;
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| 33 | __entry->lookahead_size = lookahead_size;
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| 34 | ),
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| 35 |
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| 36 | TP_printk(
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| 37 | "dev=%d:%d ino=%llx index=%lu nr_to_read=%lu lookahead_size=%lu",
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| 38 | MAJOR(__entry->s_dev), MINOR(__entry->s_dev), __entry->i_ino,
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| 39 | __entry->index, __entry->nr_to_read, __entry->lookahead_size
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| 40 | )
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| 41 | );
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| 42 |
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| 43 | TRACE_EVENT(page_cache_ra_order,
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| 44 | TP_PROTO(struct inode *inode, pgoff_t index, struct file_ra_state *ra),
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| 45 |
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| 46 | TP_ARGS(inode, index, ra),
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| 47 |
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| 48 | TP_STRUCT__entry(
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| 49 | __field(u64, i_ino)
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| 50 | __field(dev_t, s_dev)
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| 51 | __field(pgoff_t, index)
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| 52 | __field(unsigned int, order)
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| 53 | __field(unsigned int, size)
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| 54 | __field(unsigned int, async_size)
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| 55 | __field(unsigned int, ra_pages)
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| 56 | ),
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| 57 |
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| 58 | TP_fast_assign(
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| 59 | __entry->i_ino = inode->i_ino;
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| 60 | __entry->s_dev = inode->i_sb->s_dev;
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| 61 | __entry->index = index;
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| 62 | __entry->order = ra->order;
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| 63 | __entry->size = ra->size;
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| 64 | __entry->async_size = ra->async_size;
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| 65 | __entry->ra_pages = ra->ra_pages;
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| 66 | ),
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| 67 |
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| 68 | TP_printk(
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| 69 | "dev=%d:%d ino=%llx index=%lu order=%u size=%u async_size=%u ra_pages=%u",
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| 70 | MAJOR(__entry->s_dev), MINOR(__entry->s_dev), __entry->i_ino,
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| 71 | __entry->index, __entry->order, __entry->size,
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| 72 | __entry->async_size, __entry->ra_pages
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| 73 | )
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| 74 | );
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| 75 |
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| 76 | DECLARE_EVENT_CLASS(page_cache_ra_op,
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| 77 | TP_PROTO(struct inode *inode, pgoff_t index, struct file_ra_state *ra,
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| 78 | unsigned long req_count),
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| 79 |
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| 80 | TP_ARGS(inode, index, ra, req_count),
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| 81 |
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| 82 | TP_STRUCT__entry(
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| 83 | __field(u64, i_ino)
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| 84 | __field(loff_t, prev_pos)
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| 85 | __field(pgoff_t, index)
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| 86 | __field(unsigned long, req_count)
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| 87 | __field(dev_t, s_dev)
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| 88 | __field(unsigned int, order)
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| 89 | __field(unsigned int, size)
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| 90 | __field(unsigned int, async_size)
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| 91 | __field(unsigned int, ra_pages)
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| 92 | __field(unsigned int, mmap_miss)
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| 93 | ),
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| 94 |
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| 95 | TP_fast_assign(
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| 96 | __entry->i_ino = inode->i_ino;
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| 97 | __entry->s_dev = inode->i_sb->s_dev;
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| 98 | __entry->index = index;
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| 99 | __entry->order = ra->order;
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| 100 | __entry->size = ra->size;
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| 101 | __entry->async_size = ra->async_size;
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| 102 | __entry->ra_pages = ra->ra_pages;
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| 103 | __entry->mmap_miss = ra->mmap_miss;
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| 104 | __entry->prev_pos = ra->prev_pos;
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| 105 | __entry->req_count = req_count;
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| 106 | ),
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| 107 |
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| 108 | TP_printk(
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| 109 | "dev=%d:%d ino=%llx index=%lu req_count=%lu order=%u size=%u async_size=%u ra_pages=%u mmap_miss=%u prev_pos=%lld",
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| 110 | MAJOR(__entry->s_dev), MINOR(__entry->s_dev), __entry->i_ino,
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| 111 | __entry->index, __entry->req_count, __entry->order,
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| 112 | __entry->size, __entry->async_size, __entry->ra_pages,
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| 113 | __entry->mmap_miss, __entry->prev_pos
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| 114 | )
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| 115 | );
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| 116 |
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| 117 | DEFINE_EVENT(page_cache_ra_op, page_cache_sync_ra,
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| 118 | TP_PROTO(struct inode *inode, pgoff_t index, struct file_ra_state *ra,
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| 119 | unsigned long req_count),
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| 120 | TP_ARGS(inode, index, ra, req_count)
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| 121 | );
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| 122 |
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| 123 | DEFINE_EVENT(page_cache_ra_op, page_cache_async_ra,
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| 124 | TP_PROTO(struct inode *inode, pgoff_t index, struct file_ra_state *ra,
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| 125 | unsigned long req_count),
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| 126 | TP_ARGS(inode, index, ra, req_count)
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| 127 | );
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| 128 |
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| 129 | #endif
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| 130 |
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| 131 |
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| 132 | #include <trace/define_trace.h>
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