linux/include/trace/events/huge_memory.h

/* SPDX-License-Identifier: GPL-2.0 */
#undef TRACE_SYSTEM
#define TRACE_SYSTEM …

#if !defined(__HUGE_MEMORY_H) || defined(TRACE_HEADER_MULTI_READ)
#define __HUGE_MEMORY_H

#include  <linux/tracepoint.h>

#define SCAN_STATUS …

#undef EM
#undef EMe
#define EM(a, b) …
#define EMe(a, b) …

SCAN_STATUS

#undef EM
#undef EMe
#define EM(a, b) …
#define EMe(a, b) …

TRACE_EVENT(mm_khugepaged_scan_pmd,

	TP_PROTO(struct mm_struct *mm, struct page *page, bool writable,
		 int referenced, int none_or_zero, int status, int unmapped),

	TP_ARGS(mm, page, writable, referenced, none_or_zero, status, unmapped),

	TP_STRUCT__entry(
		__field(struct mm_struct *, mm)
		__field(unsigned long, pfn)
		__field(bool, writable)
		__field(int, referenced)
		__field(int, none_or_zero)
		__field(int, status)
		__field(int, unmapped)
	),

	TP_fast_assign(
		__entry->mm = mm;
		__entry->pfn = page ? page_to_pfn(page) : -1;
		__entry->writable = writable;
		__entry->referenced = referenced;
		__entry->none_or_zero = none_or_zero;
		__entry->status = status;
		__entry->unmapped = unmapped;
	),

	TP_printk("mm=%p, scan_pfn=0x%lx, writable=%d, referenced=%d, none_or_zero=%d, status=%s, unmapped=%d",
		__entry->mm,
		__entry->pfn,
		__entry->writable,
		__entry->referenced,
		__entry->none_or_zero,
		__print_symbolic(__entry->status, SCAN_STATUS),
		__entry->unmapped)
);

TRACE_EVENT(mm_collapse_huge_page,

	TP_PROTO(struct mm_struct *mm, int isolated, int status),

	TP_ARGS(mm, isolated, status),

	TP_STRUCT__entry(
		__field(struct mm_struct *, mm)
		__field(int, isolated)
		__field(int, status)
	),

	TP_fast_assign(
		__entry->mm = mm;
		__entry->isolated = isolated;
		__entry->status = status;
	),

	TP_printk("mm=%p, isolated=%d, status=%s",
		__entry->mm,
		__entry->isolated,
		__print_symbolic(__entry->status, SCAN_STATUS))
);

TRACE_EVENT(mm_collapse_huge_page_isolate,

	TP_PROTO(struct page *page, int none_or_zero,
		 int referenced, bool  writable, int status),

	TP_ARGS(page, none_or_zero, referenced, writable, status),

	TP_STRUCT__entry(
		__field(unsigned long, pfn)
		__field(int, none_or_zero)
		__field(int, referenced)
		__field(bool, writable)
		__field(int, status)
	),

	TP_fast_assign(
		__entry->pfn = page ? page_to_pfn(page) : -1;
		__entry->none_or_zero = none_or_zero;
		__entry->referenced = referenced;
		__entry->writable = writable;
		__entry->status = status;
	),

	TP_printk("scan_pfn=0x%lx, none_or_zero=%d, referenced=%d, writable=%d, status=%s",
		__entry->pfn,
		__entry->none_or_zero,
		__entry->referenced,
		__entry->writable,
		__print_symbolic(__entry->status, SCAN_STATUS))
);

TRACE_EVENT(mm_collapse_huge_page_swapin,

	TP_PROTO(struct mm_struct *mm, int swapped_in, int referenced, int ret),

	TP_ARGS(mm, swapped_in, referenced, ret),

	TP_STRUCT__entry(
		__field(struct mm_struct *, mm)
		__field(int, swapped_in)
		__field(int, referenced)
		__field(int, ret)
	),

	TP_fast_assign(
		__entry->mm = mm;
		__entry->swapped_in = swapped_in;
		__entry->referenced = referenced;
		__entry->ret = ret;
	),

	TP_printk("mm=%p, swapped_in=%d, referenced=%d, ret=%d",
		__entry->mm,
		__entry->swapped_in,
		__entry->referenced,
		__entry->ret)
);

TRACE_EVENT(mm_khugepaged_scan_file,

	TP_PROTO(struct mm_struct *mm, struct folio *folio, struct file *file,
		 int present, int swap, int result),

	TP_ARGS(mm, folio, file, present, swap, result),

	TP_STRUCT__entry(
		__field(struct mm_struct *, mm)
		__field(unsigned long, pfn)
		__string(filename, file->f_path.dentry->d_iname)
		__field(int, present)
		__field(int, swap)
		__field(int, result)
	),

	TP_fast_assign(
		__entry->mm = mm;
		__entry->pfn = folio ? folio_pfn(folio) : -1;
		__assign_str(filename);
		__entry->present = present;
		__entry->swap = swap;
		__entry->result = result;
	),

	TP_printk("mm=%p, scan_pfn=0x%lx, filename=%s, present=%d, swap=%d, result=%s",
		__entry->mm,
		__entry->pfn,
		__get_str(filename),
		__entry->present,
		__entry->swap,
		__print_symbolic(__entry->result, SCAN_STATUS))
);

TRACE_EVENT(mm_khugepaged_collapse_file,
	TP_PROTO(struct mm_struct *mm, struct folio *new_folio, pgoff_t index,
			bool is_shmem, unsigned long addr, struct file *file,
			int nr, int result),
	TP_ARGS(mm, new_folio, index, addr, is_shmem, file, nr, result),
	TP_STRUCT__entry(
		__field(struct mm_struct *, mm)
		__field(unsigned long, hpfn)
		__field(pgoff_t, index)
		__field(unsigned long, addr)
		__field(bool, is_shmem)
		__string(filename, file->f_path.dentry->d_iname)
		__field(int, nr)
		__field(int, result)
	),

	TP_fast_assign(
		__entry->mm = mm;
		__entry->hpfn = new_folio ? folio_pfn(new_folio) : -1;
		__entry->index = index;
		__entry->addr = addr;
		__entry->is_shmem = is_shmem;
		__assign_str(filename);
		__entry->nr = nr;
		__entry->result = result;
	),

	TP_printk("mm=%p, hpage_pfn=0x%lx, index=%ld, addr=%ld, is_shmem=%d, filename=%s, nr=%d, result=%s",
		__entry->mm,
		__entry->hpfn,
		__entry->index,
		__entry->addr,
		__entry->is_shmem,
		__get_str(filename),
		__entry->nr,
		__print_symbolic(__entry->result, SCAN_STATUS))
);

#endif /* __HUGE_MEMORY_H */
#include <trace/define_trace.h>