From: Chao Yu chao@kernel.org
stable inclusion from stable-v5.10.110 commit ec67040703c8423473c419c2b5caa362f53efed6 bugzilla: https://gitee.com/openeuler/kernel/issues/I574AL
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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commit 6d18762ed5cd549fde74fd0e05d4d87bac5a3beb upstream.
As Pavel Machek reported in below link [1]:
After commit 77900c45ee5c ("f2fs: fix to do sanity check in is_alive()"), node page should be unlock via calling f2fs_put_page() in the error path of is_alive(), otherwise, f2fs may hang when it tries to lock the node page, fix it.
[1] https://lore.kernel.org/stable/20220124203637.GA19321@duo.ucw.cz/
Fixes: 77900c45ee5c ("f2fs: fix to do sanity check in is_alive()") Cc: stable@vger.kernel.org Reported-by: Pavel Machek pavel@denx.de Signed-off-by: Pavel Machek pavel@denx.de Signed-off-by: Chao Yu chao@kernel.org Signed-off-by: Jaegeuk Kim jaegeuk@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Yu Liao liaoyu15@huawei.com Reviewed-by: Wei Li liwei391@huawei.com Signed-off-by: Zheng Zengkai zhengzengkai@huawei.com --- fs/f2fs/gc.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c index 6153b29de331..827b5a6175ec 100644 --- a/fs/f2fs/gc.c +++ b/fs/f2fs/gc.c @@ -998,8 +998,10 @@ static bool is_alive(struct f2fs_sb_info *sbi, struct f2fs_summary *sum, set_sbi_flag(sbi, SBI_NEED_FSCK); }
- if (f2fs_check_nid_range(sbi, dni->ino)) + if (f2fs_check_nid_range(sbi, dni->ino)) { + f2fs_put_page(node_page, 1); return false; + }
*nofs = ofs_of_node(node_page); source_blkaddr = data_blkaddr(NULL, node_page, ofs_in_node);