On Tue, Mar 05, 2024 at 12:35:41AM +0800, Kemeng Shi wrote: > This fix the oops in ext4 unit test which is cuased by NULL sb.s_user_ns > as following: > <4>[ 14.344565] map_id_range_down (kernel/user_namespace.c:318) > <4>[ 14.345378] make_kuid (kernel/user_namespace.c:415) > <4>[ 14.345998] inode_init_always (include/linux/fs.h:1375 fs/inode.c:174) > <4>[ 14.346696] alloc_inode (fs/inode.c:268) > <4>[ 14.347353] new_inode_pseudo (fs/inode.c:1007) > <4>[ 14.348016] new_inode (fs/inode.c:1033) > <4>[ 14.348644] ext4_mb_init (fs/ext4/mballoc.c:3404 fs/ext4/mballoc.c:3719) > <4>[ 14.349312] mbt_kunit_init (fs/ext4/mballoc-test.c:57 > fs/ext4/mballoc-test.c:314) > <4>[ 14.349983] kunit_try_run_case (lib/kunit/test.c:388 lib/kunit/test.c:443) > <4>[ 14.350696] kunit_generic_run_threadfn_adapter (lib/kunit/try-catch.c:30) > <4>[ 14.351530] kthread (kernel/kthread.c:388) > <4>[ 14.352168] ret_from_fork (arch/arm64/kernel/entry.S:861) > <0>[ 14.353385] Code: 52808004 b8236ae7 72be5e44 b90004c4 (38e368a1) > > Alloc test super block from sget to properly initialize test super block > to fix the issue. > > Signed-off-by: Kemeng Shi <shikemeng@xxxxxxxxxxxxxxx> > Reported-by: Linux Kernel Functional Testing <lkft@xxxxxxxxxx> > Reported-by: Guenter Roeck <linux@xxxxxxxxxxxx> Tested-by: Guenter Roeck <linux@xxxxxxxxxxxx>
