From cce1325247b9faafc520c5789fe60feef1fd7092 Mon Sep 17 00:00:00 2001 From: Chao Yu Date: Thu, 29 Jun 2017 23:17:45 +0800 Subject: f2fs: stop gc/discard thread in prior during umount This patch resolves kernel panic for xfstests/081, caused by recent f2fs_bug_on f2fs: add f2fs_bug_on in __remove_discard_cmd For fixing, we will stop gc/discard thread in prior in ->kill_sb in order to avoid referring and releasing race among them. Signed-off-by: Jaegeuk Kim Signed-off-by: Chao Yu Signed-off-by: Jaegeuk Kim --- fs/f2fs/super.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'fs/f2fs/super.c') diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index c45bac6f1795..f27c141cd8aa 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -566,8 +566,6 @@ static void f2fs_put_super(struct super_block *sb) struct f2fs_sb_info *sbi = F2FS_SB(sb); int i; - stop_gc_thread(sbi); - /* prevent remaining shrinker jobs */ mutex_lock(&sbi->umount_mutex); @@ -1976,8 +1974,11 @@ static struct dentry *f2fs_mount(struct file_system_type *fs_type, int flags, static void kill_f2fs_super(struct super_block *sb) { - if (sb->s_root) + if (sb->s_root) { set_sbi_flag(F2FS_SB(sb), SBI_IS_CLOSE); + stop_gc_thread(F2FS_SB(sb)); + stop_discard_thread(F2FS_SB(sb)); + } kill_block_super(sb); } -- cgit v1.2.3