tree f82d0895ced3126742dd544978747b7eba301b01
parent a79ca8e7b9d56c762c3cd53465fde62f8ca41acf
author Al Viro <viro@zeniv.linux.org.uk> 1591483605 -0400
committer Al Viro <viro@zeniv.linux.org.uk> 1593147713 -0400

[ia64] access_uarea(): stop bothering with gpregs_[gs]et()

We know this won't be called for child == current, so we don't need
to bother with callbacks, etc. - just do unw_init_from_blocked_task(),
unw_unwind_to_user() and do the payload of gpregs_[gs]et().  For
one register.  Which is to say, access_elf_reg().

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>