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| author | dillon <dillon@FreeBSD.org> | 2002-06-26 00:29:28 +0000 |
|---|---|---|
| committer | dillon <dillon@FreeBSD.org> | 2002-06-26 00:29:28 +0000 |
| commit | ff4bf466480a64136e0e6a7758a29624eafbd106 (patch) | |
| tree | a346a6d505627055a83c70b91c8751c9f2aa92ed /sys/vm/vm_mmap.c | |
| parent | b6fded0fafcf9aca9e1db60dc0d8d9ed9c48393e (diff) | |
| download | FreeBSD-src-ff4bf466480a64136e0e6a7758a29624eafbd106.zip FreeBSD-src-ff4bf466480a64136e0e6a7758a29624eafbd106.tar.gz | |
Part I of RLIMIT_VMEM implementation. Implement core functionality for
a new resource limit that covers a process's entire VM space, including
mmap()'d space.
(Part II will be additional code to check RLIMIT_VMEM during exec() but it
needs more fleshing out).
PR: kern/18209
Submitted by: Andrey Alekseyev <uitm@zenon.net>, Dmitry Kim <jason@nichego.net>
MFC after: 7 days
Diffstat (limited to 'sys/vm/vm_mmap.c')
| -rw-r--r-- | sys/vm/vm_mmap.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/sys/vm/vm_mmap.c b/sys/vm/vm_mmap.c index 4911ef7..698179a 100644 --- a/sys/vm/vm_mmap.c +++ b/sys/vm/vm_mmap.c @@ -55,6 +55,8 @@ #include <sys/sysproto.h> #include <sys/filedesc.h> #include <sys/proc.h> +#include <sys/resource.h> +#include <sys/resourcevar.h> #include <sys/vnode.h> #include <sys/fcntl.h> #include <sys/file.h> @@ -1124,6 +1126,11 @@ vm_mmap(vm_map_t map, vm_offset_t *addr, vm_size_t size, vm_prot_t prot, objsize = size = round_page(size); + if (td->td_proc->p_vmspace->vm_map.size + size > + td->td_proc->p_rlimit[RLIMIT_VMEM].rlim_cur) { + return(ENOMEM); + } + /* * We currently can only deal with page aligned file offsets. * The check is here rather than in the syscall because the |
