Hi,

On Wed, Oct 25, 2023 at 04:02:03PM +0200, Miklos Szeredi wrote:

Add way to query the children of a particular mount.  This is a more
flexible way to iterate the mount tree than having to parse the complete
/proc/self/mountinfo.

Allow listing either

 - immediate child mounts only, or

 - recursively all descendant mounts (depth first).

Lookup the mount by the new 64bit mount ID.  If a mount needs to be queried
based on path, then statx(2) can be used to first query the mount ID
belonging to the path.

Return an array of new (64bit) mount ID's.  Without privileges only mounts
are listed which are reachable from the task's root.

Signed-off-by: Miklos Szeredi <redacted>

with this patch in the tree, all sh4 builds fail with ICE.

during RTL pass: final
In file included from fs/namespace.c:11:
fs/namespace.c: In function '__se_sys_listmount':
include/linux/syscalls.h:258:9: internal compiler error: in change_address_1, at emit-rtl.c:2275

I tested with gcc 8.2, 11.3, 11.4, and 12.3. The compiler version
does not make a difference. Has anyone else seen the same problem ?
If so, any idea what to do about it ?

Thanks,
Guenter