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-rw-r--r--fs/f2fs/f2fs.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 33c060d87a88..24eab9622ad1 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -1114,6 +1114,8 @@ struct f2fs_sb_info {
struct f2fs_bio_info *write_io[NR_PAGE_TYPE]; /* for write bios */
struct mutex wio_mutex[NR_PAGE_TYPE - 1][NR_TEMP_TYPE];
/* bio ordering for NODE/DATA */
+ /* keep migration IO order for LFS mode */
+ struct rw_semaphore io_order_lock;
mempool_t *write_io_dummy; /* Dummy pages */
/* for checkpoint */
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