/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Copyright (c) 2009-2021 Christoph Hellwig
 *
 * NOTE: none of these tracepoints shall be considered a stable kernel ABI
 * as they can change at any time.
 *
 * Current conventions for printing numbers measuring specific units:
 *
 * offset: byte offset into a subcomponent of a file operation
 * pos: file offset, in bytes
 * length: length of a file operation, in bytes
 * ino: inode number
 *
 * Numbers describing space allocations should be formatted in hexadecimal.
 */
#undef TRACE_SYSTEM
#define TRACE_SYSTEM iomap

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

#include <linux/tracepoint.h>

struct inode;

DECLARE_EVENT_CLASS(iomap_readpage_class,
        TP_PROTO(struct inode *inode, int nr_pages),
        TP_ARGS(inode, nr_pages),
        TP_STRUCT__entry(
                __field(dev_t, dev)
                __field(u64, ino)
                __field(int, nr_pages)
        ),
        TP_fast_assign(
                __entry->dev = inode->i_sb->s_dev;
                __entry->ino = inode->i_ino;
                __entry->nr_pages = nr_pages;
        ),
        TP_printk("dev %d:%d ino 0x%llx nr_pages %d",
                  MAJOR(__entry->dev), MINOR(__entry->dev),
                  __entry->ino,
                  __entry->nr_pages)
)

#define DEFINE_READPAGE_EVENT(name)             \
DEFINE_EVENT(iomap_readpage_class, name,        \
        TP_PROTO(struct inode *inode, int nr_pages), \
        TP_ARGS(inode, nr_pages))
DEFINE_READPAGE_EVENT(iomap_readpage);
DEFINE_READPAGE_EVENT(iomap_readahead);

DECLARE_EVENT_CLASS(iomap_range_class,
        TP_PROTO(struct inode *inode, loff_t off, u64 len),
        TP_ARGS(inode, off, len),
        TP_STRUCT__entry(
                __field(dev_t, dev)
                __field(u64, ino)
                __field(loff_t, size)
                __field(loff_t, offset)
                __field(u64, length)
        ),
        TP_fast_assign(
                __entry->dev = inode->i_sb->s_dev;
                __entry->ino = inode->i_ino;
                __entry->size = i_size_read(inode);
                __entry->offset = off;
                __entry->length = len;
        ),
        TP_printk("dev %d:%d ino 0x%llx size 0x%llx offset 0x%llx length 0x%llx",
                  MAJOR(__entry->dev), MINOR(__entry->dev),
                  __entry->ino,
                  __entry->size,
                  __entry->offset,
                  __entry->length)
)

#define DEFINE_RANGE_EVENT(name)                \
DEFINE_EVENT(iomap_range_class, name,   \
        TP_PROTO(struct inode *inode, loff_t off, u64 len),\
        TP_ARGS(inode, off, len))
DEFINE_RANGE_EVENT(iomap_writeback_folio);
DEFINE_RANGE_EVENT(iomap_release_folio);
DEFINE_RANGE_EVENT(iomap_invalidate_folio);
DEFINE_RANGE_EVENT(iomap_dio_invalidate_fail);
DEFINE_RANGE_EVENT(iomap_dio_rw_queued);
DEFINE_RANGE_EVENT(iomap_zero_iter);

#define IOMAP_TYPE_STRINGS \
        { IOMAP_HOLE,           "HOLE" }, \
        { IOMAP_DELALLOC,       "DELALLOC" }, \
        { IOMAP_MAPPED,         "MAPPED" }, \
        { IOMAP_UNWRITTEN,      "UNWRITTEN" }, \
        { IOMAP_INLINE,         "INLINE" }

#define IOMAP_FLAGS_STRINGS \
        { IOMAP_WRITE,          "WRITE" }, \
        { IOMAP_ZERO,           "ZERO" }, \
        { IOMAP_REPORT,         "REPORT" }, \
        { IOMAP_FAULT,          "FAULT" }, \
        { IOMAP_DIRECT,         "DIRECT" }, \
        { IOMAP_NOWAIT,         "NOWAIT" }, \
        { IOMAP_OVERWRITE_ONLY, "OVERWRITE_ONLY" }, \
        { IOMAP_UNSHARE,        "UNSHARE" }, \
        { IOMAP_DAX,            "DAX" }, \
        { IOMAP_ATOMIC,         "ATOMIC" }, \
        { IOMAP_DONTCACHE,      "DONTCACHE" }

#define IOMAP_F_FLAGS_STRINGS \
        { IOMAP_F_NEW,          "NEW" }, \
        { IOMAP_F_DIRTY,        "DIRTY" }, \
        { IOMAP_F_SHARED,       "SHARED" }, \
        { IOMAP_F_MERGED,       "MERGED" }, \
        { IOMAP_F_BUFFER_HEAD,  "BH" }, \
        { IOMAP_F_XATTR,        "XATTR" }, \
        { IOMAP_F_BOUNDARY,     "BOUNDARY" }, \
        { IOMAP_F_ANON_WRITE,   "ANON_WRITE" }, \
        { IOMAP_F_ATOMIC_BIO,   "ATOMIC_BIO" }, \
        { IOMAP_F_PRIVATE,      "PRIVATE" }, \
        { IOMAP_F_SIZE_CHANGED, "SIZE_CHANGED" }, \
        { IOMAP_F_STALE,        "STALE" }


#define IOMAP_DIO_STRINGS \
        {IOMAP_DIO_FORCE_WAIT,          "DIO_FORCE_WAIT" }, \
        {IOMAP_DIO_OVERWRITE_ONLY,      "DIO_OVERWRITE_ONLY" }, \
        {IOMAP_DIO_PARTIAL,             "DIO_PARTIAL" }, \
        {IOMAP_DIO_FSBLOCK_ALIGNED,     "DIO_FSBLOCK_ALIGNED" }

DECLARE_EVENT_CLASS(iomap_class,
        TP_PROTO(struct inode *inode, struct iomap *iomap),
        TP_ARGS(inode, iomap),
        TP_STRUCT__entry(
                __field(dev_t, dev)
                __field(u64, ino)
                __field(u64, addr)
                __field(loff_t, offset)
                __field(u64, length)
                __field(u16, type)
                __field(u16, flags)
                __field(dev_t, bdev)
        ),
        TP_fast_assign(
                __entry->dev = inode->i_sb->s_dev;
                __entry->ino = inode->i_ino;
                __entry->addr = iomap->addr;
                __entry->offset = iomap->offset;
                __entry->length = iomap->length;
                __entry->type = iomap->type;
                __entry->flags = iomap->flags;
                __entry->bdev = iomap->bdev ? iomap->bdev->bd_dev : 0;
        ),
        TP_printk("dev %d:%d ino 0x%llx bdev %d:%d addr 0x%llx offset 0x%llx "
                  "length 0x%llx type %s (0x%x) flags %s (0x%x)",
                  MAJOR(__entry->dev), MINOR(__entry->dev),
                  __entry->ino,
                  MAJOR(__entry->bdev), MINOR(__entry->bdev),
                  __entry->addr,
                  __entry->offset,
                  __entry->length,
                  __print_symbolic(__entry->type, IOMAP_TYPE_STRINGS),
                  __entry->type,
                  __print_flags(__entry->flags, "|", IOMAP_F_FLAGS_STRINGS),
                  __entry->flags)
)

#define DEFINE_IOMAP_EVENT(name)                \
DEFINE_EVENT(iomap_class, name, \
        TP_PROTO(struct inode *inode, struct iomap *iomap), \
        TP_ARGS(inode, iomap))
DEFINE_IOMAP_EVENT(iomap_iter_dstmap);
DEFINE_IOMAP_EVENT(iomap_iter_srcmap);

TRACE_EVENT(iomap_add_to_ioend,
        TP_PROTO(struct inode *inode, u64 pos, unsigned int dirty_len,
                 struct iomap *iomap),
        TP_ARGS(inode, pos, dirty_len, iomap),
        TP_STRUCT__entry(
                __field(dev_t, dev)
                __field(u64, ino)
                __field(u64, pos)
                __field(u64, dirty_len)
                __field(u64, addr)
                __field(loff_t, offset)
                __field(u64, length)
                __field(u16, type)
                __field(u16, flags)
                __field(dev_t, bdev)
        ),
        TP_fast_assign(
                __entry->dev = inode->i_sb->s_dev;
                __entry->ino = inode->i_ino;
                __entry->pos = pos;
                __entry->dirty_len = dirty_len;
                __entry->addr = iomap->addr;
                __entry->offset = iomap->offset;
                __entry->length = iomap->length;
                __entry->type = iomap->type;
                __entry->flags = iomap->flags;
                __entry->bdev = iomap->bdev ? iomap->bdev->bd_dev : 0;
        ),
        TP_printk("dev %d:%d ino 0x%llx bdev %d:%d pos 0x%llx dirty len 0x%llx "
                  "addr 0x%llx offset 0x%llx length 0x%llx type %s (0x%x) flags %s (0x%x)",
                  MAJOR(__entry->dev), MINOR(__entry->dev),
                  __entry->ino,
                  MAJOR(__entry->bdev), MINOR(__entry->bdev),
                  __entry->pos,
                  __entry->dirty_len,
                  __entry->addr,
                  __entry->offset,
                  __entry->length,
                  __print_symbolic(__entry->type, IOMAP_TYPE_STRINGS),
                  __entry->type,
                  __print_flags(__entry->flags, "|", IOMAP_F_FLAGS_STRINGS),
                  __entry->flags)
);

TRACE_EVENT(iomap_iter,
        TP_PROTO(struct iomap_iter *iter, const void *ops,
                 unsigned long caller),
        TP_ARGS(iter, ops, caller),
        TP_STRUCT__entry(
                __field(dev_t, dev)
                __field(u64, ino)
                __field(loff_t, pos)
                __field(u64, length)
                __field(int, status)
                __field(unsigned int, flags)
                __field(const void *, ops)
                __field(unsigned long, caller)
        ),
        TP_fast_assign(
                __entry->dev = iter->inode->i_sb->s_dev;
                __entry->ino = iter->inode->i_ino;
                __entry->pos = iter->pos;
                __entry->length = iomap_length(iter);
                __entry->status = iter->status;
                __entry->flags = iter->flags;
                __entry->ops = ops;
                __entry->caller = caller;
        ),
        TP_printk("dev %d:%d ino 0x%llx pos 0x%llx length 0x%llx status %d flags %s (0x%x) ops %ps caller %pS",
                  MAJOR(__entry->dev), MINOR(__entry->dev),
                   __entry->ino,
                   __entry->pos,
                   __entry->length,
                   __entry->status,
                   __print_flags(__entry->flags, "|", IOMAP_FLAGS_STRINGS),
                   __entry->flags,
                   __entry->ops,
                   (void *)__entry->caller)
);

TRACE_EVENT(iomap_dio_rw_begin,
        TP_PROTO(struct kiocb *iocb, struct iov_iter *iter,
                 unsigned int dio_flags, size_t done_before),
        TP_ARGS(iocb, iter, dio_flags, done_before),
        TP_STRUCT__entry(
                __field(dev_t,  dev)
                __field(ino_t,  ino)
                __field(loff_t, isize)
                __field(loff_t, pos)
                __field(size_t, count)
                __field(size_t, done_before)
                __field(int,    ki_flags)
                __field(unsigned int,   dio_flags)
                __field(bool,   aio)
        ),
        TP_fast_assign(
                __entry->dev = file_inode(iocb->ki_filp)->i_sb->s_dev;
                __entry->ino = file_inode(iocb->ki_filp)->i_ino;
                __entry->isize = file_inode(iocb->ki_filp)->i_size;
                __entry->pos = iocb->ki_pos;
                __entry->count = iov_iter_count(iter);
                __entry->done_before = done_before;
                __entry->ki_flags = iocb->ki_flags;
                __entry->dio_flags = dio_flags;
                __entry->aio = !is_sync_kiocb(iocb);
        ),
        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",
                  MAJOR(__entry->dev), MINOR(__entry->dev),
                  __entry->ino,
                  __entry->isize,
                  __entry->pos,
                  __entry->count,
                  __entry->done_before,
                  __print_flags(__entry->ki_flags, "|", TRACE_IOCB_STRINGS),
                  __print_flags(__entry->dio_flags, "|", IOMAP_DIO_STRINGS),
                  __entry->aio)
);

TRACE_EVENT(iomap_dio_complete,
        TP_PROTO(struct kiocb *iocb, int error, ssize_t ret),
        TP_ARGS(iocb, error, ret),
        TP_STRUCT__entry(
                __field(dev_t,  dev)
                __field(ino_t,  ino)
                __field(loff_t, isize)
                __field(loff_t, pos)
                __field(int,    ki_flags)
                __field(bool,   aio)
                __field(int,    error)
                __field(ssize_t, ret)
        ),
        TP_fast_assign(
                __entry->dev = file_inode(iocb->ki_filp)->i_sb->s_dev;
                __entry->ino = file_inode(iocb->ki_filp)->i_ino;
                __entry->isize = file_inode(iocb->ki_filp)->i_size;
                __entry->pos = iocb->ki_pos;
                __entry->ki_flags = iocb->ki_flags;
                __entry->aio = !is_sync_kiocb(iocb);
                __entry->error = error;
                __entry->ret = ret;
        ),
        TP_printk("dev %d:%d ino 0x%lx size 0x%llx offset 0x%llx flags %s aio %d error %d ret %zd",
                  MAJOR(__entry->dev), MINOR(__entry->dev),
                  __entry->ino,
                  __entry->isize,
                  __entry->pos,
                  __print_flags(__entry->ki_flags, "|", TRACE_IOCB_STRINGS),
                  __entry->aio,
                  __entry->error,
                  __entry->ret)
);

#endif /* _IOMAP_TRACE_H */

#undef TRACE_INCLUDE_PATH
#define TRACE_INCLUDE_PATH .
#define TRACE_INCLUDE_FILE trace
#include <trace/define_trace.h>