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f2fs: Add trace_f2fs_fault_report

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Add trace_f2fs_fault_report to trigger reporting upon f2fs_bug_on,
need_fsck, stop_checkpoint, and handle_eio. Since f2fs_bug_on and
need_fsck can be triggered in hundreds of scenarios, define set_sbi_flag
as a macro to help capture the effective fault function and line number.

Signed-off-by: shengyong1 <shengyong1@xiaomi.com>
Signed-off-by: liujinbao1 <liujinbao1@xiaomi.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
liujinbao1 2026-05-06 17:57:31 +08:00 committed by Jaegeuk Kim
parent fb645a976f
commit f6b2456603
3 changed files with 54 additions and 1 deletions
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18
fs/f2fs/f2fs.h
View File

@ -96,6 +96,15 @@ extern const char *f2fs_fault_name[FAULT_MAX];
#define DEFAULT_FAILURE_RETRY_COUNT 1
#endif
enum {
REPORT_FAULT_NEED_FSCK,
REPORT_FAULT_STOP_CP,
REPORT_FAULT_MAX,
};
void f2fs_fault_report(struct super_block *sb, unsigned int err_code,
const char *func, unsigned int data);
/*
* For mount options
*/
@ -2279,11 +2288,18 @@ static inline bool is_sbi_flag_set(struct f2fs_sb_info *sbi, unsigned int type)
return test_bit(type, &sbi->s_flag);
}
static inline void set_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
static inline void __set_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
{
set_bit(type, &sbi->s_flag);
}
#define set_sbi_flag(sbi, type) \
do { \
__set_sbi_flag(sbi, type); \
if ((type) == SBI_NEED_FSCK) \
f2fs_fault_report(sbi->sb, REPORT_FAULT_NEED_FSCK, __func__, __LINE__); \
} while (0)
static inline void clear_sbi_flag(struct f2fs_sb_info *sbi, unsigned int type)
{
clear_bit(type, &sbi->s_flag);

9
fs/f2fs/super.c
View File

@ -4750,9 +4750,18 @@ static void f2fs_handle_critical_error(struct f2fs_sb_info *sbi,
*/
}
void f2fs_fault_report(struct super_block *sb, unsigned int err_code,
const char *func, unsigned int data)
{
trace_f2fs_fault_report(sb, err_code, func, data);
}
void f2fs_stop_checkpoint(struct f2fs_sb_info *sbi, bool end_io,
unsigned char reason)
{
if (reason != STOP_CP_REASON_SHUTDOWN)
f2fs_fault_report(sbi->sb, REPORT_FAULT_STOP_CP, __func__, reason);
f2fs_build_fault_attr(sbi, 0, 0, FAULT_ALL);
if (!end_io)
f2fs_flush_merged_writes(sbi);

28
include/trace/events/f2fs.h
View File

@ -2595,6 +2595,34 @@ DEFINE_EVENT(f2fs_priority_update, f2fs_priority_restore,
TP_ARGS(sbi, lock_name, is_write, p, orig_prio, new_prio)
);
TRACE_EVENT(f2fs_fault_report,
TP_PROTO(struct super_block *sb, unsigned int err_code,
const char *func, unsigned int data),
TP_ARGS(sb, err_code, func, data),
TP_STRUCT__entry(
__field(dev_t, dev)
__field(unsigned int, err_code)
__string(func, func)
__field(unsigned int, data)
),
TP_fast_assign(
__entry->dev = sb->s_dev;
__entry->err_code = err_code;
__assign_str(func);
__entry->data = data;
),
TP_printk("dev = (%d,%d), err_code = %u, func = %s, data = %u",
show_dev(__entry->dev),
__entry->err_code,
__get_str(func),
__entry->data)
);
#endif /* _TRACE_F2FS_H */
/* This part must be outside protection */