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author | jhb <jhb@FreeBSD.org> | 2013-09-19 18:53:42 +0000 |
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committer | jhb <jhb@FreeBSD.org> | 2013-09-19 18:53:42 +0000 |
commit | d3ef75b6c79e9e6d642efa9c32a96524d7a5a5b7 (patch) | |
tree | 56c7a97f082d488a8b917c2d2d52956076373329 /sys/sys/syscallsubr.h | |
parent | 8ecfe4666e7be9cea4cf6c3ef929de2e8d286f41 (diff) | |
download | FreeBSD-src-d3ef75b6c79e9e6d642efa9c32a96524d7a5a5b7.zip FreeBSD-src-d3ef75b6c79e9e6d642efa9c32a96524d7a5a5b7.tar.gz |
Extend the support for exempting processes from being killed when swap is
exhausted.
- Add a new protect(1) command that can be used to set or revoke protection
from arbitrary processes. Similar to ktrace it can apply a change to all
existing descendants of a process as well as future descendants.
- Add a new procctl(2) system call that provides a generic interface for
control operations on processes (as opposed to the debugger-specific
operations provided by ptrace(2)). procctl(2) uses a combination of
idtype_t and an id to identify the set of processes on which to operate
similar to wait6().
- Add a PROC_SPROTECT control operation to manage the protection status
of a set of processes. MADV_PROTECT still works for backwards
compatability.
- Add a p_flag2 to struct proc (and a corresponding ki_flag2 to kinfo_proc)
the first bit of which is used to track if P_PROTECT should be inherited
by new child processes.
Reviewed by: kib, jilles (earlier version)
Approved by: re (delphij)
MFC after: 1 month
Diffstat (limited to 'sys/sys/syscallsubr.h')
-rw-r--r-- | sys/sys/syscallsubr.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sys/sys/syscallsubr.h b/sys/sys/syscallsubr.h index 17f2b97..ed11b34 100644 --- a/sys/sys/syscallsubr.h +++ b/sys/sys/syscallsubr.h @@ -167,6 +167,8 @@ int kern_posix_fadvise(struct thread *td, int fd, off_t offset, off_t len, int advice); int kern_posix_fallocate(struct thread *td, int fd, off_t offset, off_t len); +int kern_procctl(struct thread *td, enum idtype idtype, id_t id, int com, + void *data); int kern_preadv(struct thread *td, int fd, struct uio *auio, off_t offset); int kern_pselect(struct thread *td, int nd, fd_set *in, fd_set *ou, fd_set *ex, struct timeval *tvp, sigset_t *uset, int abi_nfdbits); |