This patch introduces F2FS_GOING_DOWN_METAFLUSH which flushes meta pages like
SSA blocks and then blocks all the writes.
This can be used by power-failure tests.
Signed-off-by: Jaegeuk Kim <jaeg...@kernel.org>
---
fs/f2fs/f2fs.h | 1 +
fs/f2fs/file.c | 4 ++++
2 files changed, 5 insertions(+)
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index aad4720..f05ae22 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -250,6 +250,7 @@ static inline bool __has_cursum_space(struct
f2fs_summary_block *sum, int size,
#define F2FS_GOING_DOWN_FULLSYNC 0x0 /* going down with full sync */
#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 */
#if defined(__KERNEL__) && defined(CONFIG_COMPAT)
/*
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index b3985a6..6d3cfd5 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -1498,6 +1498,10 @@ static int f2fs_ioc_shutdown(struct file *filp, unsigned
long arg)
case F2FS_GOING_DOWN_NOSYNC:
f2fs_stop_checkpoint(sbi);
break;
+ case F2FS_GOING_DOWN_METAFLUSH:
+ sync_meta_pages(sbi, META, LONG_MAX);
+ f2fs_stop_checkpoint(sbi);
+ break;
default:
return -EINVAL;
}
--
2.1.1
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