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| author | Johannes Thumshirn <johannes.thumshirn@wdc.com> | 2021-01-26 23:21:15 +0300 |
|---|---|---|
| committer | Damien Le Moal <damien.lemoal@wdc.com> | 2021-02-16 03:59:54 +0300 |
| commit | 62ab1aadcccd037a7ced4ed99b4d46d2b4190183 (patch) | |
| tree | f6423157260b368f67d29eb566263bd2f5565691 /fs/zonefs/trace.h | |
| parent | 6ee1d745b7c9fd573fba142a2efdad76a9f1cb04 (diff) | |
| download | linux-62ab1aadcccd037a7ced4ed99b4d46d2b4190183.tar.xz | |
zonefs: add tracepoints for file operations
Add tracepoints for file I/O operations to aid in debugging of I/O errors
with zonefs.
The added tracepoints are in:
- zonefs_zone_mgmt() for tracing zone management operations
- zonefs_iomap_begin() for tracing regular file I/O
- zonefs_file_dio_append() for tracing zone-append operations
Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Diffstat (limited to 'fs/zonefs/trace.h')
| -rw-r--r-- | fs/zonefs/trace.h | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/fs/zonefs/trace.h b/fs/zonefs/trace.h new file mode 100644 index 000000000000..f369d7d50303 --- /dev/null +++ b/fs/zonefs/trace.h @@ -0,0 +1,104 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * zonefs filesystem driver tracepoints. + * + * Copyright (C) 2021 Western Digital Corporation or its affiliates. + */ + +#undef TRACE_SYSTEM +#define TRACE_SYSTEM zonefs + +#if !defined(_TRACE_ZONEFS_H) || defined(TRACE_HEADER_MULTI_READ) +#define _TRACE_ZONEFS_H + +#include <linux/tracepoint.h> +#include <linux/trace_seq.h> +#include <linux/blkdev.h> + +#include "zonefs.h" + +#define show_dev(dev) MAJOR(dev), MINOR(dev) + +TRACE_EVENT(zonefs_zone_mgmt, + TP_PROTO(struct inode *inode, enum req_opf op), + TP_ARGS(inode, op), + TP_STRUCT__entry( + __field(dev_t, dev) + __field(ino_t, ino) + __field(int, op) + __field(sector_t, sector) + __field(sector_t, nr_sectors) + ), + TP_fast_assign( + __entry->dev = inode->i_sb->s_dev; + __entry->ino = inode->i_ino; + __entry->op = op; + __entry->sector = ZONEFS_I(inode)->i_zsector; + __entry->nr_sectors = + ZONEFS_I(inode)->i_zone_size >> SECTOR_SHIFT; + ), + TP_printk("bdev=(%d,%d), ino=%lu op=%s, sector=%llu, nr_sectors=%llu", + show_dev(__entry->dev), (unsigned long)__entry->ino, + blk_op_str(__entry->op), __entry->sector, + __entry->nr_sectors + ) +); + +TRACE_EVENT(zonefs_file_dio_append, + TP_PROTO(struct inode *inode, ssize_t size, ssize_t ret), + TP_ARGS(inode, size, ret), + TP_STRUCT__entry( + __field(dev_t, dev) + __field(ino_t, ino) + __field(sector_t, sector) + __field(ssize_t, size) + __field(loff_t, wpoffset) + __field(ssize_t, ret) + ), + TP_fast_assign( + __entry->dev = inode->i_sb->s_dev; + __entry->ino = inode->i_ino; + __entry->sector = ZONEFS_I(inode)->i_zsector; + __entry->size = size; + __entry->wpoffset = ZONEFS_I(inode)->i_wpoffset; + __entry->ret = ret; + ), + TP_printk("bdev=(%d, %d), ino=%lu, sector=%llu, size=%zu, wpoffset=%llu, ret=%zu", + show_dev(__entry->dev), (unsigned long)__entry->ino, + __entry->sector, __entry->size, __entry->wpoffset, + __entry->ret + ) +); + +TRACE_EVENT(zonefs_iomap_begin, + TP_PROTO(struct inode *inode, struct iomap *iomap), + TP_ARGS(inode, iomap), + TP_STRUCT__entry( + __field(dev_t, dev) + __field(ino_t, ino) + __field(u64, addr) + __field(loff_t, offset) + __field(u64, length) + ), + 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; + ), + TP_printk("bdev=(%d,%d), ino=%lu, addr=%llu, offset=%llu, length=%llu", + show_dev(__entry->dev), (unsigned long)__entry->ino, + __entry->addr, __entry->offset, __entry->length + ) +); + +#endif /* _TRACE_ZONEFS_H */ + +#undef TRACE_INCLUDE_PATH +#define TRACE_INCLUDE_PATH . +#undef TRACE_INCLUDE_FILE +#define TRACE_INCLUDE_FILE trace + +/* This part must be outside protection */ +#include <trace/define_trace.h> |