f2fs: fix to cover f2fs_inline_data_fiemap with inode_lock

This patch fix to cover f2fs_inline_data_fiemap with inode_lock in order
to make that interface avoiding race with mapping change.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 15bca4eb08595239601e9b431d4857c7e3901ba8..76a81b6d38a6291ccf908e4a49f7d6bdca17a1c2 100644 (file)
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -1154,14 +1154,14 @@ int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
        if (ret)
                return ret;
 
+       inode_lock(inode);
+
        if (f2fs_has_inline_data(inode)) {
                ret = f2fs_inline_data_fiemap(inode, fieinfo, start, len);
                if (ret != -EAGAIN)
-                       return ret;
+                       goto out;
        }
 
-       inode_lock(inode);
-
        if (logical_to_blk(inode, len) == 0)
                len = blk_to_logical(inode, 1);