From: Arjan van de Ven <arjanv@redhat.com>
To: linux-kernel@vger.kernel.org
Cc: torvalds@osdl.org, akpm@osdl.org
Subject: Re: mlock as non-root: use rlimits
Date: Fri, 4 Jun 2004 17:12:51 +0200 [thread overview]
Message-ID: <20040604151251.GD16897@devserv.devel.redhat.com> (raw)
In-Reply-To: <20040604112845.GA28413@devserv.devel.redhat.com>
On Fri, Jun 04, 2004 at 05:12:02PM +0200, Arjan van de Ven wrote:
> Hi,
missed one chunk (sorry)
diff -urN linux-2.6.1-1.138.2.1/fs/hugetlbfs/inode.c linux-2.6.1-1.138.2.1custom/fs/hugetlbfs/inode.c
--- linux-2.6.1-1.138.2.1/fs/hugetlbfs/inode.c 2004-01-30 15:15:50.000000000 -0800
+++ linux-2.6.1-1.138.2.1custom/fs/hugetlbfs/inode.c 2004-02-26 14:17:48.000000000 -0800
@@ -755,7 +755,7 @@
struct qstr quick_string;
char buf[16];
- if (!capable(CAP_IPC_LOCK))
+ if (!can_do_mlock())
return ERR_PTR(-EPERM);
if (!is_hugepage_mem_enough(size))
diff -urN linux-2.6.1-1.138.2.1/include/asm-alpha/resource.h linux-2.6.1-1.138.2.1custom/include/asm-alpha/resource.h
--- linux-2.6.1-1.138.2.1/include/asm-alpha/resource.h 2004-01-08 22:59:08.000000000 -0800
+++ linux-2.6.1-1.138.2.1custom/include/asm-alpha/resource.h 2004-03-02 13:45:23.000000000 -0800
@@ -39,7 +39,7 @@
{INR_OPEN, INR_OPEN}, /* RLIMIT_NOFILE */ \
{LONG_MAX, LONG_MAX}, /* RLIMIT_AS */ \
{LONG_MAX, LONG_MAX}, /* RLIMIT_NPROC */ \
- {LONG_MAX, LONG_MAX}, /* RLIMIT_MEMLOCK */ \
+ {PAGE_SIZE,PAGE_SIZE}, /* RLIMIT_MEMLOCK */ \
{LONG_MAX, LONG_MAX}, /* RLIMIT_LOCKS */ \
}
diff -urN linux-2.6.1-1.138.2.1/include/asm-arm/resource.h linux-2.6.1-1.138.2.1custom/include/asm-arm/resource.h
--- linux-2.6.1-1.138.2.1/include/asm-arm/resource.h 2004-01-08 22:59:56.000000000 -0800
+++ linux-2.6.1-1.138.2.1custom/include/asm-arm/resource.h 2004-03-02 13:46:40.000000000 -0800
@@ -37,7 +37,7 @@
{ RLIM_INFINITY, RLIM_INFINITY }, \
{ 0, 0 }, \
{ INR_OPEN, INR_OPEN }, \
- { RLIM_INFINITY, RLIM_INFINITY }, \
+ { PAGE_SIZE, PAGE_SIZE }, \
{ RLIM_INFINITY, RLIM_INFINITY }, \
{ RLIM_INFINITY, RLIM_INFINITY }, \
}
diff -urN linux-2.6.1-1.138.2.1/include/asm-arm26/resource.h linux-2.6.1-1.138.2.1custom/include/asm-arm26/resource.h
--- linux-2.6.1-1.138.2.1/include/asm-arm26/resource.h 2004-01-08 22:59:04.000000000 -0800
+++ linux-2.6.1-1.138.2.1custom/include/asm-arm26/resource.h 2004-03-02 13:48:39.000000000 -0800
@@ -37,7 +37,7 @@
{ RLIM_INFINITY, RLIM_INFINITY }, \
{ 0, 0 }, \
{ INR_OPEN, INR_OPEN }, \
- { RLIM_INFINITY, RLIM_INFINITY }, \
+ { PAGE_SIZE, PAGE_SIZE }, \
{ RLIM_INFINITY, RLIM_INFINITY }, \
{ RLIM_INFINITY, RLIM_INFINITY }, \
}
diff -urN linux-2.6.1-1.138.2.1/include/asm-cris/resource.h linux-2.6.1-1.138.2.1custom/include/asm-cris/resource.h
--- linux-2.6.1-1.138.2.1/include/asm-cris/resource.h 2004-01-08 22:59:45.000000000 -0800
+++ linux-2.6.1-1.138.2.1custom/include/asm-cris/resource.h 2004-03-02 13:47:33.000000000 -0800
@@ -37,7 +37,7 @@
{ RLIM_INFINITY, RLIM_INFINITY }, \
{ 0, 0 }, \
{ INR_OPEN, INR_OPEN }, \
- { RLIM_INFINITY, RLIM_INFINITY }, \
+ { PAGE_SIZE, PAGE_SIZE }, \
{ RLIM_INFINITY, RLIM_INFINITY }, \
{ RLIM_INFINITY, RLIM_INFINITY }, \
}
diff -urN linux-2.6.1-1.138.2.1/include/asm-h8300/resource.h linux-2.6.1-1.138.2.1custom/include/asm-h8300/resource.h
--- linux-2.6.1-1.138.2.1/include/asm-h8300/resource.h 2004-01-08 22:59:06.000000000 -0800
+++ linux-2.6.1-1.138.2.1custom/include/asm-h8300/resource.h 2004-03-02 13:49:00.000000000 -0800
@@ -37,7 +37,7 @@
{ RLIM_INFINITY, RLIM_INFINITY }, \
{ 0, 0 }, \
{ INR_OPEN, INR_OPEN }, \
- { RLIM_INFINITY, RLIM_INFINITY }, \
+ { PAGE_SIZE, PAGE_SIZE }, \
{ RLIM_INFINITY, RLIM_INFINITY }, \
{ RLIM_INFINITY, RLIM_INFINITY }, \
}
diff -urN linux-2.6.1-1.138.2.1/include/asm-i386/resource.h linux-2.6.1-1.138.2.1custom/include/asm-i386/resource.h
--- linux-2.6.1-1.138.2.1/include/asm-i386/resource.h 2004-01-08 22:59:09.000000000 -0800
+++ linux-2.6.1-1.138.2.1custom/include/asm-i386/resource.h 2004-03-02 13:47:47.000000000 -0800
@@ -37,7 +37,7 @@
{ RLIM_INFINITY, RLIM_INFINITY }, \
{ 0, 0 }, \
{ INR_OPEN, INR_OPEN }, \
- { RLIM_INFINITY, RLIM_INFINITY }, \
+ { PAGE_SIZE, PAGE_SIZE }, \
{ RLIM_INFINITY, RLIM_INFINITY }, \
{ RLIM_INFINITY, RLIM_INFINITY }, \
}
diff -urN linux-2.6.1-1.138.2.1/include/asm-ia64/resource.h linux-2.6.1-1.138.2.1custom/include/asm-ia64/resource.h
--- linux-2.6.1-1.138.2.1/include/asm-ia64/resource.h 2004-01-08 22:59:55.000000000 -0800
+++ linux-2.6.1-1.138.2.1custom/include/asm-ia64/resource.h 2004-03-02 13:48:07.000000000 -0800
@@ -42,7 +42,7 @@
{ RLIM_INFINITY, RLIM_INFINITY }, \
{ 0, 0 }, \
{ INR_OPEN, INR_OPEN }, \
- { RLIM_INFINITY, RLIM_INFINITY }, \
+ { PAGE_SIZE, PAGE_SIZE }, \
{ RLIM_INFINITY, RLIM_INFINITY }, \
{ RLIM_INFINITY, RLIM_INFINITY }, \
}
diff -urN linux-2.6.1-1.138.2.1/include/asm-m68k/resource.h linux-2.6.1-1.138.2.1custom/include/asm-m68k/resource.h
--- linux-2.6.1-1.138.2.1/include/asm-m68k/resource.h 2004-01-08 22:59:05.000000000 -0800
+++ linux-2.6.1-1.138.2.1custom/include/asm-m68k/resource.h 2004-03-02 13:49:18.000000000 -0800
@@ -37,7 +37,7 @@
{ RLIM_INFINITY, RLIM_INFINITY }, \
{ 0, 0 }, \
{ INR_OPEN, INR_OPEN }, \
- { RLIM_INFINITY, RLIM_INFINITY }, \
+ { PAGE_SIZE, PAGE_SIZE }, \
{ RLIM_INFINITY, RLIM_INFINITY }, \
{ RLIM_INFINITY, RLIM_INFINITY }, \
}
diff -urN linux-2.6.1-1.138.2.1/include/asm-parisc/resource.h linux-2.6.1-1.138.2.1custom/include/asm-parisc/resource.h
--- linux-2.6.1-1.138.2.1/include/asm-parisc/resource.h 2004-01-08 22:59:46.000000000 -0800
+++ linux-2.6.1-1.138.2.1custom/include/asm-parisc/resource.h 2004-03-02 13:50:30.000000000 -0800
@@ -37,7 +37,7 @@
{ RLIM_INFINITY, RLIM_INFINITY }, \
{ 0, 0 }, \
{ INR_OPEN, INR_OPEN }, \
- { RLIM_INFINITY, RLIM_INFINITY }, \
+ { PAGE_SIZE, PAGE_SIZE }, \
{ RLIM_INFINITY, RLIM_INFINITY }, \
{ RLIM_INFINITY, RLIM_INFINITY }, \
}
diff -urN linux-2.6.1-1.138.2.1/include/asm-ppc/resource.h linux-2.6.1-1.138.2.1custom/include/asm-ppc/resource.h
--- linux-2.6.1-1.138.2.1/include/asm-ppc/resource.h 2004-01-08 22:59:26.000000000 -0800
+++ linux-2.6.1-1.138.2.1custom/include/asm-ppc/resource.h 2004-03-02 13:50:57.000000000 -0800
@@ -34,7 +34,7 @@
{ RLIM_INFINITY, RLIM_INFINITY }, \
{ 0, 0 }, \
{ INR_OPEN, INR_OPEN }, \
- { RLIM_INFINITY, RLIM_INFINITY }, \
+ { PAGE_SIZE, PAGE_SIZE }, \
{ RLIM_INFINITY, RLIM_INFINITY }, \
{ RLIM_INFINITY, RLIM_INFINITY }, \
}
diff -urN linux-2.6.1-1.138.2.1/include/asm-ppc64/resource.h linux-2.6.1-1.138.2.1custom/include/asm-ppc64/resource.h
--- linux-2.6.1-1.138.2.1/include/asm-ppc64/resource.h 2004-01-08 22:59:46.000000000 -0800
+++ linux-2.6.1-1.138.2.1custom/include/asm-ppc64/resource.h 2004-03-02 13:50:44.000000000 -0800
@@ -43,7 +43,7 @@
{ RLIM_INFINITY, RLIM_INFINITY }, \
{ 0, 0 }, \
{ INR_OPEN, INR_OPEN }, \
- { RLIM_INFINITY, RLIM_INFINITY }, \
+ { PAGE_SIZE, PAGE_SIZE }, \
{ RLIM_INFINITY, RLIM_INFINITY }, \
{ RLIM_INFINITY, RLIM_INFINITY }, \
}
diff -urN linux-2.6.1-1.138.2.1/include/asm-s390/resource.h linux-2.6.1-1.138.2.1custom/include/asm-s390/resource.h
--- linux-2.6.1-1.138.2.1/include/asm-s390/resource.h 2004-01-08 22:59:19.000000000 -0800
+++ linux-2.6.1-1.138.2.1custom/include/asm-s390/resource.h 2004-03-02 13:51:12.000000000 -0800
@@ -45,7 +45,7 @@
{ RLIM_INFINITY, RLIM_INFINITY }, \
{ 0, 0 }, \
{ INR_OPEN, INR_OPEN }, \
- { RLIM_INFINITY, RLIM_INFINITY }, \
+ { PAGE_SIZE, PAGE_SIZE }, \
{ RLIM_INFINITY, RLIM_INFINITY }, \
{ RLIM_INFINITY, RLIM_INFINITY }, \
}
diff -urN linux-2.6.1-1.138.2.1/include/asm-sh/resource.h linux-2.6.1-1.138.2.1custom/include/asm-sh/resource.h
--- linux-2.6.1-1.138.2.1/include/asm-sh/resource.h 2004-01-08 22:59:45.000000000 -0800
+++ linux-2.6.1-1.138.2.1custom/include/asm-sh/resource.h 2004-03-02 13:51:38.000000000 -0800
@@ -37,7 +37,7 @@
{ RLIM_INFINITY, RLIM_INFINITY }, \
{ 0, 0 }, \
{ INR_OPEN, INR_OPEN }, \
- { RLIM_INFINITY, RLIM_INFINITY }, \
+ { PAGE_SIZE, PAGE_SIZE }, \
{ RLIM_INFINITY, RLIM_INFINITY }, \
{ RLIM_INFINITY, RLIM_INFINITY }, \
}
diff -urN linux-2.6.1-1.138.2.1/include/asm-sparc/resource.h linux-2.6.1-1.138.2.1custom/include/asm-sparc/resource.h
--- linux-2.6.1-1.138.2.1/include/asm-sparc/resource.h 2004-01-08 22:59:09.000000000 -0800
+++ linux-2.6.1-1.138.2.1custom/include/asm-sparc/resource.h 2004-03-02 13:52:06.000000000 -0800
@@ -42,7 +42,7 @@
{ 0, RLIM_INFINITY}, \
{RLIM_INFINITY, RLIM_INFINITY}, \
{INR_OPEN, INR_OPEN}, {0, 0}, \
- {RLIM_INFINITY, RLIM_INFINITY}, \
+ {PAGE_SIZE, PAGE_SIZE}, \
{RLIM_INFINITY, RLIM_INFINITY}, \
{RLIM_INFINITY, RLIM_INFINITY} \
}
diff -urN linux-2.6.1-1.138.2.1/include/asm-sparc64/resource.h linux-2.6.1-1.138.2.1custom/include/asm-sparc64/resource.h
--- linux-2.6.1-1.138.2.1/include/asm-sparc64/resource.h 2004-01-08 22:59:06.000000000 -0800
+++ linux-2.6.1-1.138.2.1custom/include/asm-sparc64/resource.h 2004-03-02 13:51:58.000000000 -0800
@@ -41,7 +41,7 @@
{ 0, RLIM_INFINITY}, \
{RLIM_INFINITY, RLIM_INFINITY}, \
{INR_OPEN, INR_OPEN}, {0, 0}, \
- {RLIM_INFINITY, RLIM_INFINITY}, \
+ {PAGE_SIZE, PAGE_SIZE }, \
{RLIM_INFINITY, RLIM_INFINITY}, \
{RLIM_INFINITY, RLIM_INFINITY} \
}
diff -urN linux-2.6.1-1.138.2.1/include/asm-v850/resource.h linux-2.6.1-1.138.2.1custom/include/asm-v850/resource.h
--- linux-2.6.1-1.138.2.1/include/asm-v850/resource.h 2004-01-08 22:59:06.000000000 -0800
+++ linux-2.6.1-1.138.2.1custom/include/asm-v850/resource.h 2004-03-02 13:52:59.000000000 -0800
@@ -37,7 +37,7 @@
{ RLIM_INFINITY, RLIM_INFINITY }, \
{ 0, 0 }, \
{ INR_OPEN, INR_OPEN }, \
- { RLIM_INFINITY, RLIM_INFINITY }, \
+ { PAGE_SIZE, PAGE_SIZE }, \
{ RLIM_INFINITY, RLIM_INFINITY }, \
{ RLIM_INFINITY, RLIM_INFINITY }, \
}
diff -urN linux-2.6.1-1.138.2.1/include/asm-x86_64/resource.h linux-2.6.1-1.138.2.1custom/include/asm-x86_64/resource.h
--- linux-2.6.1-1.138.2.1/include/asm-x86_64/resource.h 2004-01-08 22:59:47.000000000 -0800
+++ linux-2.6.1-1.138.2.1custom/include/asm-x86_64/resource.h 2004-03-02 13:53:10.000000000 -0800
@@ -37,7 +37,7 @@
{ RLIM_INFINITY, RLIM_INFINITY }, \
{ 0, 0 }, \
{ INR_OPEN, INR_OPEN }, \
- { RLIM_INFINITY, RLIM_INFINITY }, \
+ { PAGE_SIZE , PAGE_SIZE }, \
{ RLIM_INFINITY, RLIM_INFINITY }, \
{ RLIM_INFINITY, RLIM_INFINITY }, \
}
diff -urN linux-2.6.1-1.138.2.1/ipc/shm.c linux-2.6.1-1.138.2.1custom/ipc/shm.c
--- linux-2.6.1-1.138.2.1/ipc/shm.c 2004-01-08 22:59:34.000000000 -0800
+++ linux-2.6.1-1.138.2.1custom/ipc/shm.c 2004-03-02 13:57:21.000000000 -0800
@@ -502,14 +502,11 @@
case SHM_LOCK:
case SHM_UNLOCK:
{
-/* Allow superuser to lock segment in memory */
-/* Should the pages be faulted in here or leave it to user? */
-/* need to determine interaction with current->swappable */
- if (!capable(CAP_IPC_LOCK)) {
+ /* Allow superuser to lock segment in memory */
+ if (!can_do_mlock()) {
err = -EPERM;
goto out;
}
-
shp = shm_lock(shmid);
if(shp==NULL) {
err = -EINVAL;
@@ -524,9 +521,11 @@
goto out_unlock;
if(cmd==SHM_LOCK) {
- if (!is_file_hugepages(shp->shm_file))
- shmem_lock(shp->shm_file, 1);
- shp->shm_flags |= SHM_LOCKED;
+ if (!is_file_hugepages(shp->shm_file)) {
+ err = shmem_lock(shp->shm_file, 1);
+ if (!err)
+ shp->shm_flags |= SHM_LOCKED;
+ }
} else {
if (!is_file_hugepages(shp->shm_file))
shmem_lock(shp->shm_file, 0);
diff -urN linux-2.6.1-1.138.2.1/ipc/util.c linux-2.6.1-1.138.2.1custom/ipc/util.c
--- linux-2.6.1-1.138.2.1/ipc/util.c 2004-01-08 22:59:26.000000000 -0800
+++ linux-2.6.1-1.138.2.1custom/ipc/util.c 2004-03-02 15:03:08.000000000 -0800
@@ -377,8 +377,11 @@
granted_mode >>= 3;
/* is there some bit set in requested_mode but not in granted_mode? */
if ((requested_mode & ~granted_mode & 0007) &&
- !capable(CAP_IPC_OWNER))
- return -1;
+ !capable(CAP_IPC_OWNER)) {
+ if (!can_do_mlock()) {
+ return -1;
+ }
+ }
return security_ipc_permission(ipcp, flag);
}
diff -urN linux-2.6.1-1.138.2.1/mm/mlock.c linux-2.6.1-1.138.2.1custom/mm/mlock.c
--- linux-2.6.1-1.138.2.1/mm/mlock.c 2004-01-08 22:59:07.000000000 -0800
+++ linux-2.6.1-1.138.2.1custom/mm/mlock.c 2004-02-24 14:19:53.000000000 -0800
@@ -57,7 +57,7 @@
struct vm_area_struct * vma, * next;
int error;
- if (on && !capable(CAP_IPC_LOCK))
+ if (on && !can_do_mlock())
return -EPERM;
len = PAGE_ALIGN(len);
end = start + len;
@@ -139,7 +139,7 @@
unsigned int def_flags;
struct vm_area_struct * vma;
- if (!capable(CAP_IPC_LOCK))
+ if (!can_do_mlock())
return -EPERM;
def_flags = 0;
diff -urN linux-2.6.1-1.138.2.1/mm/mmap.c linux-2.6.1-1.138.2.1custom/mm/mmap.c
--- linux-2.6.1-1.138.2.1/mm/mmap.c 2004-01-30 15:15:50.000000000 -0800
+++ linux-2.6.1-1.138.2.1custom/mm/mmap.c 2004-02-24 14:26:15.000000000 -0800
@@ -519,15 +519,17 @@
mm->def_flags | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC;
if (flags & MAP_LOCKED) {
- if (!capable(CAP_IPC_LOCK))
+ if (!can_do_mlock())
return -EPERM;
vm_flags |= VM_LOCKED;
}
/* mlock MCL_FUTURE? */
if (vm_flags & VM_LOCKED) {
- unsigned long locked = mm->locked_vm << PAGE_SHIFT;
+ unsigned long locked, lock_limit;
+ locked = mm->locked_vm << PAGE_SHIFT;
+ lock_limit = current->rlim[RLIMIT_MEMLOCK].rlim_cur;
locked += len;
- if (locked > current->rlim[RLIMIT_MEMLOCK].rlim_cur)
+ if (locked > lock_limit && !capable(CAP_IPC_LOCK))
return -EAGAIN;
}
@@ -1360,9 +1362,11 @@
* mlock MCL_FUTURE?
*/
if (mm->def_flags & VM_LOCKED) {
- unsigned long locked = mm->locked_vm << PAGE_SHIFT;
+ unsigned long locked, lock_limit;
+ locked = mm->locked_vm << PAGE_SHIFT;
+ lock_limit = current->rlim[RLIMIT_MEMLOCK].rlim_cur;
locked += len;
- if (locked > current->rlim[RLIMIT_MEMLOCK].rlim_cur)
+ if (locked > lock_limit && !capable(CAP_IPC_LOCK))
return -EAGAIN;
}
diff -urN linux-2.6.1-1.138.2.1/mm/mremap.c linux-2.6.1-1.138.2.1custom/mm/mremap.c
--- linux-2.6.1-1.138.2.1/mm/mremap.c 2004-01-30 15:15:50.000000000 -0800
+++ linux-2.6.1-1.138.2.1custom/mm/mremap.c 2004-02-24 14:28:06.000000000 -0800
@@ -377,10 +377,12 @@
goto out;
}
if (vma->vm_flags & VM_LOCKED) {
- unsigned long locked = current->mm->locked_vm << PAGE_SHIFT;
+ unsigned long locked, lock_limit;
+ locked = current->mm->locked_vm << PAGE_SHIFT;
+ lock_limit = current->rlim[RLIMIT_MEMLOCK].rlim_cur;
locked += new_len - old_len;
ret = -EAGAIN;
- if (locked > current->rlim[RLIMIT_MEMLOCK].rlim_cur)
+ if (locked > lock_limit && !capable(CAP_IPC_LOCK))
goto out;
}
ret = -ENOMEM;
diff -urNp linux-530/mm/shmem.c linux-550/mm/shmem.c
--- linux-530/mm/shmem.c
+++ linux-550/mm/shmem.c
@@ -1161,17 +1161,36 @@ shmem_get_policy(struct vm_area_struct *
}
#endif
-void shmem_lock(struct file *file, int lock)
+int shmem_lock(struct file *file, int lock)
{
struct inode *inode = file->f_dentry->d_inode;
struct shmem_inode_info *info = SHMEM_I(inode);
+ struct mm_struct *mm = current->mm;
+ unsigned long lock_limit, locked;
+ int retval = -ENOMEM;
spin_lock(&info->lock);
+ if (lock && !(info->flags & VM_LOCKED)) {
+ locked = inode->i_size >> PAGE_SHIFT;
+ locked += mm->locked_vm;
+ lock_limit = current->rlim[RLIMIT_MEMLOCK].rlim_cur;
+ lock_limit >>= PAGE_SHIFT;
+ if ((locked > lock_limit) && !capable(CAP_IPC_LOCK))
+ goto out_nomem;
+ mm->locked_vm = locked;
+ }
+ if (!lock && (info->flags & VM_LOCKED) && mm) {
+ locked = inode->i_size >> PAGE_SHIFT;
+ mm->locked_vm -= locked;
+ }
if (lock)
info->flags |= VM_LOCKED;
else
info->flags &= ~VM_LOCKED;
+ retval = 0;
+out_nomem:
spin_unlock(&info->lock);
+ return retval;
}
static int shmem_mmap(struct file *file, struct vm_area_struct *vma)
--- linux-2.6.6/include/linux/mm.h~ 2004-06-02 10:59:42.600139423 +0200
+++ linux-2.6.6/include/linux/mm.h 2004-06-02 10:59:42.600139423 +0200
@@ -495,9 +495,19 @@
struct mempolicy *shmem_get_policy(struct vm_area_struct *vma,
unsigned long addr);
struct file *shmem_file_setup(char * name, loff_t size, unsigned long flags);
-void shmem_lock(struct file * file, int lock);
+int shmem_lock(struct file * file, int lock);
int shmem_zero_setup(struct vm_area_struct *);
+static inline int can_do_mlock(void)
+{
+ if (capable(CAP_IPC_LOCK))
+ return 1;
+ if (current->rlim[RLIMIT_MEMLOCK].rlim_cur != 0)
+ return 1;
+ return 0;
+}
+
+
/*
* Parameter block passed down to zap_pte_range in exceptional cases.
*/
next prev parent reply other threads:[~2004-06-04 15:14 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-06-04 11:28 mlock as non-root: use rlimits Arjan van de Ven
2004-06-04 15:12 ` Arjan van de Ven [this message]
2004-06-04 18:18 ` Chris Wright
2004-06-05 6:59 ` Arjan van de Ven
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