From 0cd6d9b0d23416af3bfb8736f8be5bb66bc8060b Mon Sep 17 00:00:00 2001 From: Jaegeuk Kim Date: Wed, 28 Nov 2018 13:26:03 -0800 Subject: [PATCH] f2fs: add an ioctl() to explicitly trigger fsck later 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 Signed-off-by: Jaegeuk Kim --- fs/f2fs/f2fs.h | 1 + fs/f2fs/file.c | 7 +++++++ 2 files changed, 8 insertions(+) diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index aa500239baf2..7cec897146a3 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -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) /* diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index ff82350a2c55..ca9bdbb8651b 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -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;