btrfs: fix iterator with update error in backref.c
Fix the following error: fs/btrfs/backref.c:565:1-20: iterator with update on line 577 Fixes: a7ca422('btrfs: use list_for_each_entry* in backref.c') Signed-off-by: Geliang Tang <geliangtang@163.com> Signed-off-by: David Sterba <dsterba@suse.com>
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8e217858ee
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@ -560,13 +560,13 @@ static int __add_missing_keys(struct btrfs_fs_info *fs_info,
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*/
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static void __merge_refs(struct list_head *head, int mode)
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{
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struct __prelim_ref *ref1;
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struct __prelim_ref *pos1;
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list_for_each_entry(ref1, head, list) {
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struct __prelim_ref *ref2 = ref1, *tmp;
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list_for_each_entry(pos1, head, list) {
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struct __prelim_ref *pos2 = pos1, *tmp;
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list_for_each_entry_safe_continue(ref2, tmp, head, list) {
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struct __prelim_ref *xchg;
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list_for_each_entry_safe_continue(pos2, tmp, head, list) {
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struct __prelim_ref *xchg, *ref1 = pos1, *ref2 = pos2;
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struct extent_inode_elem *eie;
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if (!ref_for_same_block(ref1, ref2))
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