v2: - add an extra fix (patch 2) : mount is now added to the list before unlocking sb->s_umount - set SB_BORN just before unlocking sb->s_umount, just like it would happen when using fc_mount() (Max) - don't allocate a FUSE context for the submounts (Max) - introduce a dedicated context ops for submounts - add a extra cleanup : simplify the code even more with fc_mount() v1: While working on adding syncfs() support in FUSE, I've hit some severe bugs with submounts (a crash and an infinite loop). The fix for the crash is straightforward (patch 1), but the fix for the infinite loop is more invasive : as suggested by Miklos, a simple bug fix is applied first (patch 2) and the final fix (patch 3) is applied on top. Greg Kurz (7): fuse: Fix crash in fuse_dentry_automount() error path fuse: Fix crash if superblock of submount gets killed early fuse: Fix infinite loop in sget_fc() fuse: Add dedicated filesystem context ops for submounts fuse: Call vfs_get_tree() for submounts fuse: Switch to fc_mount() for submounts fuse: Make fuse_fill_super_submount() static fs/fuse/dir.c | 58 ++++++--------------------------------------- fs/fuse/fuse_i.h | 14 ++++------- fs/fuse/inode.c | 56 +++++++++++++++++++++++++++++++++++++++++-- fs/fuse/virtio_fs.c | 3 +++ 4 files changed, 69 insertions(+), 62 deletions(-) -- 2.31.1
