diff options
| author | Chao Yu <chao@kernel.org> | 2022-02-04 11:21:14 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-04-08 14:22:52 +0200 |
| commit | e98ae961b3344d931f66558b5796f8bc00b54aba (patch) | |
| tree | 5ce145074f2f13607734aba0035eaa1650b6bef3 /fs/f2fs | |
| parent | 303cd6173dce0a28d26526c77814eb90a41bd898 (diff) | |
| download | linux-stable-e98ae961b3344d931f66558b5796f8bc00b54aba.tar.gz linux-stable-e98ae961b3344d931f66558b5796f8bc00b54aba.tar.bz2 linux-stable-e98ae961b3344d931f66558b5796f8bc00b54aba.zip | |
f2fs: fix to unlock page correctly in error path of is_alive()
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>
Diffstat (limited to 'fs/f2fs')
| -rw-r--r-- | fs/f2fs/gc.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c index 264821df0add..ceb5fc6b4039 100644 --- a/fs/f2fs/gc.c +++ b/fs/f2fs/gc.c @@ -1023,8 +1023,10 @@ 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); |