From: Kent Overstreet <kent.overstreet@gmail.com>
Date: Sat, 13 Nov 2021 22:57:52 +0000 (-0500)
Subject: bcachefs: Fix missing field initialization
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=1c9e6d50e28c89d03bebfe3e3946746dc1eeab74;p=linux.git

bcachefs: Fix missing field initialization

When unpacking v1 inodes, we were failing to initialize the journal_seq
field, leading to a BUG_ON() when fsync tries to flush a garbage journal
sequence number.

Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
---

diff --git a/fs/bcachefs/inode.c b/fs/bcachefs/inode.c
index a24bbc5228c1b..fb5ed3a07ad75 100644
--- a/fs/bcachefs/inode.c
+++ b/fs/bcachefs/inode.c
@@ -220,6 +220,7 @@ int bch2_inode_unpack(struct bkey_s_c k,
 		struct bkey_s_c_inode inode = bkey_s_c_to_inode(k);
 
 		unpacked->bi_inum	= inode.k->p.offset;
+		unpacked->bi_journal_seq= 0;
 		unpacked->bi_hash_seed	= inode.v->bi_hash_seed;
 		unpacked->bi_flags	= le32_to_cpu(inode.v->bi_flags);
 		unpacked->bi_mode	= le16_to_cpu(inode.v->bi_mode);