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a0e31f3a38
Pull siginfo fix from Eric Biederman:
"During the merge window an issue with si_perf and the siginfo ABI came
up. The alpha and sparc siginfo structure layout had changed with the
addition of SIGTRAP TRAP_PERF and the new field si_perf.
The reason only alpha and sparc were affected is that they are the
only architectures that use si_trapno.
Looking deeper it was discovered that si_trapno is used for only a few
select signals on alpha and sparc, and that none of the other
_sigfault fields past si_addr are used at all. Which means technically
no regression on alpha and sparc.
While the alignment concerns might be dismissed the abuse of si_errno
by SIGTRAP TRAP_PERF does have the potential to cause regressions in
existing userspace.
While we still have time before userspace starts using and depending
on the new definition siginfo for SIGTRAP TRAP_PERF this set of
changes cleans up siginfo_t.
- The si_trapno field is demoted from magic alpha and sparc status
and made an ordinary union member of the _sigfault member of
siginfo_t. Without moving it of course.
- si_perf is replaced with si_perf_data and si_perf_type ending the
abuse of si_errno.
- Unnecessary additions to signalfd_siginfo are removed"
* 'for-v5.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
signalfd: Remove SIL_PERF_EVENT fields from signalfd_siginfo
signal: Deliver all of the siginfo perf data in _perf
signal: Factor force_sig_perf out of perf_sigtrap
signal: Implement SIL_FAULT_TRAPNO
siginfo: Move si_trapno inside the union inside _si_fault
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| .. | ||
| auxvec.h | ||
| bitsperlong.h | ||
| bpf_perf_event.h | ||
| errno-base.h | ||
| errno.h | ||
| fcntl.h | ||
| hugetlb_encode.h | ||
| int-l64.h | ||
| int-ll64.h | ||
| ioctl.h | ||
| ioctls.h | ||
| ipcbuf.h | ||
| Kbuild | ||
| kvm_para.h | ||
| mman-common.h | ||
| mman.h | ||
| msgbuf.h | ||
| param.h | ||
| poll.h | ||
| posix_types.h | ||
| resource.h | ||
| sembuf.h | ||
| setup.h | ||
| shmbuf.h | ||
| siginfo.h | ||
| signal-defs.h | ||
| signal.h | ||
| socket.h | ||
| sockios.h | ||
| stat.h | ||
| statfs.h | ||
| swab.h | ||
| termbits.h | ||
| termios.h | ||
| types.h | ||
| ucontext.h | ||
| unistd.h | ||