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f2fs: flush error flags in workqueue

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In IRQ context, it wakes up workqueue to record errors into on-disk
superblock fields rather than in-memory fields.

Fixes: 1aa161e431 ("f2fs: fix scheduling while atomic in decompression path")
Fixes: 95fa90c9e5 ("f2fs: support recording errors into superblock")
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Chao Yu 2023-05-18 10:14:12 +08:00 committed by Jaegeuk Kim
parent 458c15dfbc
commit 901c12d144
3 changed files with 25 additions and 4 deletions
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2
fs/f2fs/compress.c
View File

@ -744,7 +744,7 @@ void f2fs_decompress_cluster(struct decompress_io_ctx *dic, bool in_task)
/* Avoid f2fs_commit_super in irq context */
if (!in_task)
f2fs_save_errors(sbi, ERROR_FAIL_DECOMPRESSION);
f2fs_handle_error_async(sbi, ERROR_FAIL_DECOMPRESSION);
else
f2fs_handle_error(sbi, ERROR_FAIL_DECOMPRESSION);
goto out_release;

1
fs/f2fs/f2fs.h
View File

@ -3563,6 +3563,7 @@ void f2fs_save_errors(struct f2fs_sb_info *sbi, unsigned char flag);
void f2fs_handle_critical_error(struct f2fs_sb_info *sbi, unsigned char reason,
bool irq_context);
void f2fs_handle_error(struct f2fs_sb_info *sbi, unsigned char error);
void f2fs_handle_error_async(struct f2fs_sb_info *sbi, unsigned char error);
int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover);
int f2fs_sync_fs(struct super_block *sb, int sync);
int f2fs_sanity_check_ckpt(struct f2fs_sb_info *sbi);

26
fs/f2fs/super.c
View File

@ -3995,6 +3995,11 @@ static void f2fs_record_stop_reason(struct f2fs_sb_info *sbi)
f2fs_down_write(&sbi->sb_lock);
spin_lock_irqsave(&sbi->error_lock, flags);
if (sbi->error_dirty) {
memcpy(F2FS_RAW_SUPER(sbi)->s_errors, sbi->errors,
MAX_F2FS_ERRORS);
sbi->error_dirty = false;
}
memcpy(raw_super->s_stop_reason, sbi->stop_reason, MAX_STOP_REASON);
spin_unlock_irqrestore(&sbi->error_lock, flags);
@ -4034,12 +4039,10 @@ static bool f2fs_update_errors(struct f2fs_sb_info *sbi)
return need_update;
}
void f2fs_handle_error(struct f2fs_sb_info *sbi, unsigned char error)
static void f2fs_record_errors(struct f2fs_sb_info *sbi, unsigned char error)
{
int err;
f2fs_save_errors(sbi, error);
f2fs_down_write(&sbi->sb_lock);
if (!f2fs_update_errors(sbi))
@ -4053,6 +4056,23 @@ out_unlock:
f2fs_up_write(&sbi->sb_lock);
}
void f2fs_handle_error(struct f2fs_sb_info *sbi, unsigned char error)
{
f2fs_save_errors(sbi, error);
f2fs_record_errors(sbi, error);
}
void f2fs_handle_error_async(struct f2fs_sb_info *sbi, unsigned char error)
{
f2fs_save_errors(sbi, error);
if (!sbi->error_dirty)
return;
if (!test_bit(error, (unsigned long *)sbi->errors))
return;
schedule_work(&sbi->s_error_work);
}
static bool system_going_down(void)
{
return system_state == SYSTEM_HALT || system_state == SYSTEM_POWER_OFF