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Add accounting for most of the memory-related resources.

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Sponsored by:	The FreeBSD Foundation
Reviewed by:	kib (earlier version)
This commit is contained in:
Edward Tomasz Napierala 2011-04-05 20:23:59 +00:00
parent c98fe0a557
commit 1ba5ad4210
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=220373
11 changed files with 188 additions and 13 deletions
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5
sys/compat/linux/linux_misc.c
View File

@ -50,6 +50,7 @@ __FBSDID("$FreeBSD$");
#include <sys/priv.h>
#include <sys/proc.h>
#include <sys/reboot.h>
#include <sys/racct.h>
#include <sys/resourcevar.h>
#include <sys/sched.h>
#include <sys/signalvar.h>
@ -357,7 +358,9 @@ linux_uselib(struct thread *td, struct linux_uselib_args *args)
*/
PROC_LOCK(td->td_proc);
if (a_out->a_text > maxtsiz ||
a_out->a_data + bss_size > lim_cur(td->td_proc, RLIMIT_DATA)) {
a_out->a_data + bss_size > lim_cur(td->td_proc, RLIMIT_DATA) ||
racct_set(td->td_proc, RACCT_DATA, a_out->a_data +
bss_size) != 0) {
PROC_UNLOCK(td->td_proc);
error = ENOMEM;
goto cleanup;

4
sys/compat/svr4/imgact_svr4.c
View File

@ -43,6 +43,7 @@ __FBSDID("$FreeBSD$");
#include <sys/mman.h>
#include <sys/mutex.h>
#include <sys/proc.h>
#include <sys/racct.h>
#include <sys/resourcevar.h>
#include <sys/vnode.h>
@ -108,7 +109,8 @@ exec_svr4_imgact(imgp)
*/
PROC_LOCK(imgp->proc);
if (a_out->a_text > maxtsiz ||
a_out->a_data + bss_size > lim_cur(imgp->proc, RLIMIT_DATA)) {
a_out->a_data + bss_size > lim_cur(imgp->proc, RLIMIT_DATA) ||
racct_set(imgp->proc, RACCT_DATA, a_out->a_data + bss_size) != 0) {;
PROC_UNLOCK(imgp->proc);
return (ENOMEM);
}

4
sys/i386/linux/imgact_linux.c
View File

@ -42,6 +42,7 @@ __FBSDID("$FreeBSD$");
#include <sys/mman.h>
#include <sys/mutex.h>
#include <sys/proc.h>
#include <sys/racct.h>
#include <sys/resourcevar.h>
#include <sys/vnode.h>
@ -107,7 +108,8 @@ exec_linux_imgact(struct image_params *imgp)
*/
PROC_LOCK(imgp->proc);
if (a_out->a_text > maxtsiz ||
a_out->a_data + bss_size > lim_cur(imgp->proc, RLIMIT_DATA)) {
a_out->a_data + bss_size > lim_cur(imgp->proc, RLIMIT_DATA) ||
racct_set(imgp->proc, RACCT_DATA, a_out->a_data + bss_size) != 0) {
PROC_UNLOCK(imgp->proc);
return (ENOMEM);
}

4
sys/kern/imgact_aout.c
View File

@ -37,6 +37,7 @@ __FBSDID("$FreeBSD$");
#include <sys/malloc.h>
#include <sys/mutex.h>
#include <sys/proc.h>
#include <sys/racct.h>
#include <sys/resourcevar.h>
#include <sys/signalvar.h>
#include <sys/syscall.h>
@ -245,7 +246,8 @@ exec_aout_imgact(struct image_params *imgp)
a_out->a_text > maxtsiz ||
/* data + bss can't exceed rlimit */
a_out->a_data + bss_size > lim_cur(imgp->proc, RLIMIT_DATA)) {
a_out->a_data + bss_size > lim_cur(imgp->proc, RLIMIT_DATA) ||
racct_set(imgp->proc, RACCT_DATA, a_out->a_data + bss_size) != 0) {
PROC_UNLOCK(imgp->proc);
return (ENOMEM);
}

12
sys/kern/imgact_elf.c
View File

@ -49,6 +49,7 @@ __FBSDID("$FreeBSD$");
#include <sys/pioctl.h>
#include <sys/proc.h>
#include <sys/procfs.h>
#include <sys/racct.h>
#include <sys/resourcevar.h>
#include <sys/sf_buf.h>
#include <sys/smp.h>
@ -874,7 +875,9 @@ __CONCAT(exec_, __elfN(imgact))(struct image_params *imgp)
PROC_LOCK(imgp->proc);
if (data_size > lim_cur(imgp->proc, RLIMIT_DATA) ||
text_size > maxtsiz ||
total_size > lim_cur(imgp->proc, RLIMIT_VMEM)) {
total_size > lim_cur(imgp->proc, RLIMIT_VMEM) ||
racct_set(imgp->proc, RACCT_DATA, data_size) != 0 ||
racct_set(imgp->proc, RACCT_VMEM, total_size) != 0) {
PROC_UNLOCK(imgp->proc);
return (ENOMEM);
}
@ -1101,6 +1104,13 @@ __elfN(coredump)(struct thread *td, struct vnode *vp, off_t limit, int flags)
hdrsize = 0;
__elfN(puthdr)(td, (void *)NULL, &hdrsize, seginfo.count);
PROC_LOCK(td->td_proc);
error = racct_add(td->td_proc, RACCT_CORE, hdrsize + seginfo.size);
PROC_UNLOCK(td->td_proc);
if (error != 0) {
error = EFAULT;
goto done;
}
if (hdrsize + seginfo.size >= limit) {
error = EFAULT;
goto done;

5
sys/kern/imgact_gzip.c
View File

@ -33,6 +33,7 @@ __FBSDID("$FreeBSD$");
#include <sys/mman.h>
#include <sys/mutex.h>
#include <sys/proc.h>
#include <sys/racct.h>
#include <sys/resourcevar.h>
#include <sys/sysent.h>
#include <sys/systm.h>
@ -216,7 +217,9 @@ do_aout_hdr(struct imgact_gzip * gz)
/* data + bss can't exceed rlimit */
gz->a_out.a_data + gz->bss_size >
lim_cur(gz->ip->proc, RLIMIT_DATA)) {
lim_cur(gz->ip->proc, RLIMIT_DATA) ||
racct_set(gz->ip->proc, RACCT_DATA,
gz->a_out.a_data + gz->bss_size) != 0) {
PROC_UNLOCK(gz->ip->proc);
gz->where = __LINE__;
return (ENOMEM);

19
sys/vm/swap_pager.c
View File

@ -86,6 +86,7 @@ __FBSDID("$FreeBSD$");
#include <sys/namei.h>
#include <sys/vnode.h>
#include <sys/malloc.h>
#include <sys/racct.h>
#include <sys/resource.h>
#include <sys/resourcevar.h>
#include <sys/sysctl.h>
@ -192,6 +193,12 @@ swap_reserve_by_cred(vm_ooffset_t incr, struct ucred *cred)
if (incr & PAGE_MASK)
panic("swap_reserve: & PAGE_MASK");
PROC_LOCK(curproc);
error = racct_add(curproc, RACCT_SWAP, incr);
PROC_UNLOCK(curproc);
if (error != 0)
return (0);
res = 0;
mtx_lock(&sw_dev_mtx);
r = swap_reserved + incr;
@ -230,6 +237,12 @@ swap_reserve_by_cred(vm_ooffset_t incr, struct ucred *cred)
curproc->p_pid, uip->ui_uid, incr);
}
if (!res) {
PROC_LOCK(curproc);
racct_sub(curproc, RACCT_SWAP, incr);
PROC_UNLOCK(curproc);
}
return (res);
}
@ -242,6 +255,10 @@ swap_reserve_force(vm_ooffset_t incr)
swap_reserved += incr;
mtx_unlock(&sw_dev_mtx);
PROC_LOCK(curproc);
racct_add_force(curproc, RACCT_SWAP, incr);
PROC_UNLOCK(curproc);
uip = curthread->td_ucred->cr_ruidinfo;
PROC_LOCK(curproc);
UIDINFO_VMSIZE_LOCK(uip);
@ -282,6 +299,8 @@ swap_release_by_cred(vm_ooffset_t decr, struct ucred *cred)
printf("negative vmsize for uid = %d\n", uip->ui_uid);
uip->ui_vmsize -= decr;
UIDINFO_VMSIZE_UNLOCK(uip);
racct_sub_cred(cred, RACCT_SWAP, decr);
}
static void swapdev_strategy(struct buf *, struct swdevt *sw);

23
sys/vm/vm_glue.c
View File

@ -69,6 +69,7 @@ __FBSDID("$FreeBSD$");
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/proc.h>
#include <sys/racct.h>
#include <sys/resourcevar.h>
#include <sys/sched.h>
#include <sys/sf_buf.h>
@ -182,6 +183,7 @@ int
vslock(void *addr, size_t len)
{
vm_offset_t end, last, start;
unsigned long nsize;
vm_size_t npages;
int error;
@ -194,9 +196,13 @@ vslock(void *addr, size_t len)
if (npages > vm_page_max_wired)
return (ENOMEM);
PROC_LOCK(curproc);
if (ptoa(npages +
pmap_wired_count(vm_map_pmap(&curproc->p_vmspace->vm_map))) >
lim_cur(curproc, RLIMIT_MEMLOCK)) {
nsize = ptoa(npages +
pmap_wired_count(vm_map_pmap(&curproc->p_vmspace->vm_map)));
if (nsize > lim_cur(curproc, RLIMIT_MEMLOCK)) {
PROC_UNLOCK(curproc);
return (ENOMEM);
}
if (racct_set(curproc, RACCT_MEMLOCK, nsize)) {
PROC_UNLOCK(curproc);
return (ENOMEM);
}
@ -216,6 +222,12 @@ vslock(void *addr, size_t len)
#endif
error = vm_map_wire(&curproc->p_vmspace->vm_map, start, end,
VM_MAP_WIRE_SYSTEM | VM_MAP_WIRE_NOHOLES);
if (error != KERN_SUCCESS) {
PROC_LOCK(curproc);
racct_set(curproc, RACCT_MEMLOCK,
ptoa(pmap_wired_count(vm_map_pmap(&curproc->p_vmspace->vm_map))));
PROC_UNLOCK(curproc);
}
/*
* Return EFAULT on error to match copy{in,out}() behaviour
* rather than returning ENOMEM like mlock() would.
@ -231,6 +243,11 @@ vsunlock(void *addr, size_t len)
(void)vm_map_unwire(&curproc->p_vmspace->vm_map,
trunc_page((vm_offset_t)addr), round_page((vm_offset_t)addr + len),
VM_MAP_WIRE_SYSTEM | VM_MAP_WIRE_NOHOLES);
PROC_LOCK(curproc);
racct_set(curproc, RACCT_MEMLOCK,
ptoa(pmap_wired_count(vm_map_pmap(&curproc->p_vmspace->vm_map))));
PROC_UNLOCK(curproc);
}
/*

55
sys/vm/vm_map.c
View File

@ -75,6 +75,7 @@ __FBSDID("$FreeBSD$");
#include <sys/vmmeter.h>
#include <sys/mman.h>
#include <sys/vnode.h>
#include <sys/racct.h>
#include <sys/resourcevar.h>
#include <sys/file.h>
#include <sys/sysctl.h>
@ -313,6 +314,19 @@ vm_init2(void)
vmspace_zinit, vmspace_zfini, UMA_ALIGN_PTR, UMA_ZONE_NOFREE);
}
static void
vmspace_container_reset(struct proc *p)
{
PROC_LOCK(p);
racct_set(p, RACCT_DATA, 0);
racct_set(p, RACCT_STACK, 0);
racct_set(p, RACCT_RSS, 0);
racct_set(p, RACCT_MEMLOCK, 0);
racct_set(p, RACCT_VMEM, 0);
PROC_UNLOCK(p);
}
static inline void
vmspace_dofree(struct vmspace *vm)
{
@ -410,6 +424,7 @@ vmspace_exit(struct thread *td)
pmap_activate(td);
vmspace_dofree(vm);
}
vmspace_container_reset(p);
}
/* Acquire reference to vmspace owned by another process. */
@ -3279,6 +3294,10 @@ vm_map_growstack(struct proc *p, vm_offset_t addr)
rlim_t stacklim, vmemlim;
int is_procstack, rv;
struct ucred *cred;
#ifdef notyet
uint64_t limit;
#endif
int error;
Retry:
PROC_LOCK(p);
@ -3377,6 +3396,14 @@ vm_map_growstack(struct proc *p, vm_offset_t addr)
vm_map_unlock_read(map);
return (KERN_NO_SPACE);
}
PROC_LOCK(p);
if (is_procstack &&
racct_set(p, RACCT_STACK, ctob(vm->vm_ssize) + grow_amount)) {
PROC_UNLOCK(p);
vm_map_unlock_read(map);
return (KERN_NO_SPACE);
}
PROC_UNLOCK(p);
/* Round up the grow amount modulo SGROWSIZ */
grow_amount = roundup (grow_amount, sgrowsiz);
@ -3386,12 +3413,28 @@ vm_map_growstack(struct proc *p, vm_offset_t addr)
grow_amount = trunc_page((vm_size_t)stacklim) -
ctob(vm->vm_ssize);
}
#ifdef notyet
PROC_LOCK(p);
limit = racct_get_available(p, RACCT_STACK);
PROC_UNLOCK(p);
if (is_procstack && (ctob(vm->vm_ssize) + grow_amount > limit))
grow_amount = limit - ctob(vm->vm_ssize);
#endif
/* If we would blow our VMEM resource limit, no go */
if (map->size + grow_amount > vmemlim) {
vm_map_unlock_read(map);
return (KERN_NO_SPACE);
rv = KERN_NO_SPACE;
goto out;
}
PROC_LOCK(p);
if (racct_set(p, RACCT_VMEM, map->size + grow_amount)) {
PROC_UNLOCK(p);
vm_map_unlock_read(map);
rv = KERN_NO_SPACE;
goto out;
}
PROC_UNLOCK(p);
if (vm_map_lock_upgrade(map))
goto Retry;
@ -3490,6 +3533,16 @@ vm_map_growstack(struct proc *p, vm_offset_t addr)
: VM_MAP_WIRE_USER|VM_MAP_WIRE_NOHOLES);
}
out:
if (rv != KERN_SUCCESS) {
PROC_LOCK(p);
error = racct_set(p, RACCT_VMEM, map->size);
KASSERT(error == 0, ("decreasing RACCT_VMEM failed"));
error = racct_set(p, RACCT_STACK, ctob(vm->vm_ssize));
KASSERT(error == 0, ("decreasing RACCT_STACK failed"));
PROC_UNLOCK(p);
}
return (rv);
}

45
sys/vm/vm_mmap.c
View File

@ -54,6 +54,7 @@ __FBSDID("$FreeBSD$");
#include <sys/filedesc.h>
#include <sys/priv.h>
#include <sys/proc.h>
#include <sys/racct.h>
#include <sys/resource.h>
#include <sys/resourcevar.h>
#include <sys/vnode.h>
@ -991,6 +992,7 @@ mlock(td, uap)
struct proc *proc;
vm_offset_t addr, end, last, start;
vm_size_t npages, size;
unsigned long nsize;
int error;
error = priv_check(td, PRIV_VM_MLOCK);
@ -1008,17 +1010,28 @@ mlock(td, uap)
return (ENOMEM);
proc = td->td_proc;
PROC_LOCK(proc);
if (ptoa(npages +
pmap_wired_count(vm_map_pmap(&proc->p_vmspace->vm_map))) >
lim_cur(proc, RLIMIT_MEMLOCK)) {
nsize = ptoa(npages +
pmap_wired_count(vm_map_pmap(&proc->p_vmspace->vm_map)));
if (nsize > lim_cur(proc, RLIMIT_MEMLOCK)) {
PROC_UNLOCK(proc);
return (ENOMEM);
}
PROC_UNLOCK(proc);
if (npages + cnt.v_wire_count > vm_page_max_wired)
return (EAGAIN);
PROC_LOCK(proc);
error = racct_set(proc, RACCT_MEMLOCK, nsize);
PROC_UNLOCK(proc);
if (error != 0)
return (ENOMEM);
error = vm_map_wire(&proc->p_vmspace->vm_map, start, end,
VM_MAP_WIRE_USER | VM_MAP_WIRE_NOHOLES);
if (error != KERN_SUCCESS) {
PROC_LOCK(proc);
racct_set(proc, RACCT_MEMLOCK,
ptoa(pmap_wired_count(vm_map_pmap(&proc->p_vmspace->vm_map))));
PROC_UNLOCK(proc);
}
return (error == KERN_SUCCESS ? 0 : ENOMEM);
}
@ -1061,6 +1074,11 @@ mlockall(td, uap)
if (error)
return (error);
#endif
PROC_LOCK(td->td_proc);
error = racct_set(td->td_proc, RACCT_MEMLOCK, map->size);
PROC_UNLOCK(td->td_proc);
if (error != 0)
return (ENOMEM);
if (uap->how & MCL_FUTURE) {
vm_map_lock(map);
@ -1080,6 +1098,12 @@ mlockall(td, uap)
VM_MAP_WIRE_USER|VM_MAP_WIRE_HOLESOK);
error = (error == KERN_SUCCESS ? 0 : EAGAIN);
}
if (error != KERN_SUCCESS) {
PROC_LOCK(td->td_proc);
racct_set(td->td_proc, RACCT_MEMLOCK,
ptoa(pmap_wired_count(vm_map_pmap(&td->td_proc->p_vmspace->vm_map))));
PROC_UNLOCK(td->td_proc);
}
return (error);
}
@ -1114,6 +1138,11 @@ munlockall(td, uap)
/* Forcibly unwire all pages. */
error = vm_map_unwire(map, vm_map_min(map), vm_map_max(map),
VM_MAP_WIRE_USER|VM_MAP_WIRE_HOLESOK);
if (error == KERN_SUCCESS) {
PROC_LOCK(td->td_proc);
racct_set(td->td_proc, RACCT_MEMLOCK, 0);
PROC_UNLOCK(td->td_proc);
}
return (error);
}
@ -1148,6 +1177,11 @@ munlock(td, uap)
return (EINVAL);
error = vm_map_unwire(&td->td_proc->p_vmspace->vm_map, start, end,
VM_MAP_WIRE_USER | VM_MAP_WIRE_NOHOLES);
if (error == KERN_SUCCESS) {
PROC_LOCK(td->td_proc);
racct_sub(td->td_proc, RACCT_MEMLOCK, ptoa(end - start));
PROC_UNLOCK(td->td_proc);
}
return (error == KERN_SUCCESS ? 0 : ENOMEM);
}
@ -1380,6 +1414,11 @@ vm_mmap(vm_map_t map, vm_offset_t *addr, vm_size_t size, vm_prot_t prot,
PROC_UNLOCK(td->td_proc);
return(ENOMEM);
}
if (racct_set(td->td_proc, RACCT_VMEM,
td->td_proc->p_vmspace->vm_map.size + size)) {
PROC_UNLOCK(td->td_proc);
return (ENOMEM);
}
PROC_UNLOCK(td->td_proc);
/*

25
sys/vm/vm_unix.c
View File

@ -47,6 +47,7 @@ __FBSDID("$FreeBSD$");
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/proc.h>
#include <sys/racct.h>
#include <sys/resourcevar.h>
#include <sys/sysproto.h>
#include <sys/systm.h>
@ -116,9 +117,29 @@ obreak(td, uap)
error = ENOMEM;
goto done;
}
PROC_LOCK(td->td_proc);
error = racct_set(td->td_proc, RACCT_DATA, new - base);
if (error != 0) {
PROC_UNLOCK(td->td_proc);
error = ENOMEM;
goto done;
}
error = racct_set(td->td_proc, RACCT_VMEM,
vm->vm_map.size + (new - old));
if (error != 0) {
racct_set_force(td->td_proc, RACCT_DATA, old - base);
PROC_UNLOCK(td->td_proc);
error = ENOMEM;
goto done;
}
PROC_UNLOCK(td->td_proc);
rv = vm_map_insert(&vm->vm_map, NULL, 0, old, new,
VM_PROT_RW, VM_PROT_ALL, 0);
if (rv != KERN_SUCCESS) {
PROC_LOCK(td->td_proc);
racct_set_force(td->td_proc, RACCT_DATA, old - base);
racct_set_force(td->td_proc, RACCT_VMEM, vm->vm_map.size);
PROC_UNLOCK(td->td_proc);
error = ENOMEM;
goto done;
}
@ -144,6 +165,10 @@ obreak(td, uap)
goto done;
}
vm->vm_dsize -= btoc(old - new);
PROC_LOCK(td->td_proc);
racct_set_force(td->td_proc, RACCT_DATA, new - base);
racct_set_force(td->td_proc, RACCT_VMEM, vm->vm_map.size);
PROC_UNLOCK(td->td_proc);
}
done:
vm_map_unlock(&vm->vm_map);