f2fs: add an ioctl() to explicitly trigger fsck later (0cd6d9b0) · Commits · 戴 / test

This adds an option in ioctl(F2FS_IOC_SHUTDOWN) in order to trigger fsck by setting a NEED_FSCK flag. Generally, shutdown is used for the test to validate filesystem consistency, and setting NEED_FSCK flag can be used for Android to trigger fsck.f2fs at boot time explicitly so that we could measure the elapsed time as well as force filesystem check. Reviewed-by:

Chao Yu <yuchao0@huawei.com> Signed-off-by:

Jaegeuk Kim <jaegeuk@kernel.org>

fs/f2fs/f2fs.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -417,6 +417,7 @@ static inline bool __has_cursum_space(struct f2fs_journal *journal,
		#define F2FS_GOING_DOWN_METASYNC 0x1 /* going down with metadata */
		#define F2FS_GOING_DOWN_NOSYNC 0x2 /* going down */
		#define F2FS_GOING_DOWN_METAFLUSH 0x3 /* going down with meta flush */
		#define F2FS_GOING_DOWN_NEED_FSCK 0x4 /* going down to trigger fsck */

		#if defined(__KERNEL__) && defined(CONFIG_COMPAT)
		/*

fs/f2fs/file.c

+7 −0

Original line number	Diff line number	Diff line
		@@ -1966,6 +1966,13 @@ static int f2fs_ioc_shutdown(struct file *filp, unsigned long arg)
		f2fs_stop_checkpoint(sbi, false);
		set_sbi_flag(sbi, SBI_IS_SHUTDOWN);
		break;
		case F2FS_GOING_DOWN_NEED_FSCK:
		set_sbi_flag(sbi, SBI_NEED_FSCK);
		/* do checkpoint only */
		ret = f2fs_sync_fs(sb, 1);
		if (ret)
		goto out;
		break;
		default:
		ret = -EINVAL;
		goto out;

Admin message