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-rw-r--r--fs/f2fs/file.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index f639b5fcd66f..18be18907529 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -1677,6 +1677,8 @@ static int f2fs_ioc_start_atomic_write(struct file *filp)
inode_lock(inode);
+ down_write(&F2FS_I(inode)->dio_rwsem[WRITE]);
+
if (f2fs_is_atomic_file(inode))
goto out;
@@ -1706,6 +1708,7 @@ inc_stat:
stat_inc_atomic_write(inode);
stat_update_max_atomic_write(inode);
out:
+ up_write(&F2FS_I(inode)->dio_rwsem[WRITE]);
inode_unlock(inode);
mnt_drop_write_file(filp);
return ret;