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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20040604151251.GD16897@devserv.devel.redhat.com \
--to=arjanv@redhat.com \
--cc=akpm@osdl.org \
--cc=linux-kernel@vger.kernel.org \
--cc=torvalds@osdl.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.