linux/kernel/time/namespace_internal.h, branch masterMirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/
https://git.shady.money/linux/atom?h=master2026-03-26T14:44:23Ztimens: Remove dependency on the vDSO2026-03-26T14:44:23ZThomas Weißschuhthomas.weissschuh@linutronix.de2026-03-26T11:42:31Zurn:sha1:1b6c89285d37114d7efe8ab04102a542581cd7da
Previously, missing time namespace support in the vDSO meant that time
namespaces needed to be disabled globally. This was expressed in a hard
dependency on the generic vDSO library. This also meant that architectures
without any vDSO or only a stub vDSO could not enable time namespaces.
Now that all architectures using a real vDSO are using the generic library,
that dependency is not necessary anymore.
Remove the dependency and let all architectures enable time namespaces.
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Link: https://patch.msgid.link/20260326-vdso-timens-decoupling-v2-2-c82693a7775f@linutronix.de
vdso/timens: Move functions to new file2026-03-26T14:44:22ZThomas Weißschuhthomas.weissschuh@linutronix.de2026-03-26T11:42:30Zurn:sha1:5dc9cf835aba73c882348aa4f99be83b6e45ad9b
As a preparation of the untangling of time namespaces and the vDSO, move
the glue functions between those subsystems into a new file.
While at it, switch the mutex lock and mmap_read_lock() in the vDSO
namespace code to guard().
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Link: https://patch.msgid.link/20260326-vdso-timens-decoupling-v2-1-c82693a7775f@linutronix.de