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Merge commit 'v2.6.29-rc1' into perfcounters/core

Browse source 
Conflicts:
	include/linux/kernel_stat.h
This commit is contained in:
Ingo Molnar 2009-01-11 02:42:53 +01:00
commit 506c10f26c
6192 changed files with 841978 additions and 151782 deletions
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86
fs/exec.c
View file

@ -52,17 +52,13 @@
#include <linux/audit.h>
#include <linux/tracehook.h>
#include <linux/kmod.h>
#include <linux/fsnotify.h>
#include <asm/uaccess.h>
#include <asm/mmu_context.h>
#include <asm/tlb.h>
#include "internal.h"
#ifdef __alpha__
/* for /sbin/loader handling in search_binary_handler() */
#include <linux/a.out.h>
#endif
int core_uses_pid;
char core_pattern[CORENAME_MAX_SIZE] = "core";
int suid_dumpable = 0;
@ -128,7 +124,8 @@ asmlinkage long sys_uselib(const char __user * library)
if (nd.path.mnt->mnt_flags & MNT_NOEXEC)
goto exit;
error = vfs_permission(&nd, MAY_READ | MAY_EXEC | MAY_OPEN);
error = inode_permission(nd.path.dentry->d_inode,
MAY_READ | MAY_EXEC | MAY_OPEN);
if (error)
goto exit;
@ -137,6 +134,8 @@ asmlinkage long sys_uselib(const char __user * library)
if (IS_ERR(file))
goto out;
fsnotify_open(file->f_path.dentry);
error = -ENOEXEC;
if(file->f_op) {
struct linux_binfmt * fmt;
@ -234,13 +233,13 @@ static void flush_arg_page(struct linux_binprm *bprm, unsigned long pos,
static int __bprm_mm_init(struct linux_binprm *bprm)
{
int err = -ENOMEM;
int err;
struct vm_area_struct *vma = NULL;
struct mm_struct *mm = bprm->mm;
bprm->vma = vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
if (!vma)
goto err;
return -ENOMEM;
down_write(&mm->mmap_sem);
vma->vm_mm = mm;
@ -253,28 +252,20 @@ static int __bprm_mm_init(struct linux_binprm *bprm)
*/
vma->vm_end = STACK_TOP_MAX;
vma->vm_start = vma->vm_end - PAGE_SIZE;
vma->vm_flags = VM_STACK_FLAGS;
vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
err = insert_vm_struct(mm, vma);
if (err) {
up_write(&mm->mmap_sem);
if (err)
goto err;
}
mm->stack_vm = mm->total_vm = 1;
up_write(&mm->mmap_sem);
bprm->p = vma->vm_end - sizeof(void *);
return 0;
err:
if (vma) {
bprm->vma = NULL;
kmem_cache_free(vm_area_cachep, vma);
}
up_write(&mm->mmap_sem);
bprm->vma = NULL;
kmem_cache_free(vm_area_cachep, vma);
return err;
}
@ -681,7 +672,7 @@ struct file *open_exec(const char *name)
if (nd.path.mnt->mnt_flags & MNT_NOEXEC)
goto out_path_put;
err = vfs_permission(&nd, MAY_EXEC | MAY_OPEN);
err = inode_permission(nd.path.dentry->d_inode, MAY_EXEC | MAY_OPEN);
if (err)
goto out_path_put;
@ -689,6 +680,8 @@ struct file *open_exec(const char *name)
if (IS_ERR(file))
return file;
fsnotify_open(file->f_path.dentry);
err = deny_write_access(file);
if (err) {
fput(file);
@ -774,7 +767,6 @@ static int de_thread(struct task_struct *tsk)
struct signal_struct *sig = tsk->signal;
struct sighand_struct *oldsighand = tsk->sighand;
spinlock_t *lock = &oldsighand->siglock;
struct task_struct *leader = NULL;
int count;
if (thread_group_empty(tsk))
@ -812,7 +804,7 @@ static int de_thread(struct task_struct *tsk)
* and to assume its PID:
*/
if (!thread_group_leader(tsk)) {
leader = tsk->group_leader;
struct task_struct *leader = tsk->group_leader;
sig->notify_count = -1; /* for exit_notify() */
for (;;) {
@ -864,8 +856,9 @@ static int de_thread(struct task_struct *tsk)
BUG_ON(leader->exit_state != EXIT_ZOMBIE);
leader->exit_state = EXIT_DEAD;
write_unlock_irq(&tasklist_lock);
release_task(leader);
}
sig->group_exit_task = NULL;
@ -874,8 +867,6 @@ static int de_thread(struct task_struct *tsk)
no_thread_group:
exit_itimers(sig);
flush_itimer_signals();
if (leader)
release_task(leader);
if (atomic_read(&oldsighand->count) != 1) {
struct sighand_struct *newsighand;
@ -1181,41 +1172,7 @@ int search_binary_handler(struct linux_binprm *bprm,struct pt_regs *regs)
unsigned int depth = bprm->recursion_depth;
int try,retval;
struct linux_binfmt *fmt;
#ifdef __alpha__
/* handle /sbin/loader.. */
{
struct exec * eh = (struct exec *) bprm->buf;
if (!bprm->loader && eh->fh.f_magic == 0x183 &&
(eh->fh.f_flags & 0x3000) == 0x3000)
{
struct file * file;
unsigned long loader;
allow_write_access(bprm->file);
fput(bprm->file);
bprm->file = NULL;
loader = bprm->vma->vm_end - sizeof(void *);
file = open_exec("/sbin/loader");
retval = PTR_ERR(file);
if (IS_ERR(file))
return retval;
/* Remember if the application is TASO. */
bprm->taso = eh->ah.entry < 0x100000000UL;
bprm->file = file;
bprm->loader = loader;
retval = prepare_binprm(bprm);
if (retval<0)
return retval;
/* should call search_binary_handler recursively here,
but it does not matter */
}
}
#endif
retval = security_bprm_check(bprm);
if (retval)
return retval;
@ -1737,7 +1694,7 @@ int get_dumpable(struct mm_struct *mm)
return (ret >= 2) ? 2 : ret;
}
int do_coredump(long signr, int exit_code, struct pt_regs * regs)
void do_coredump(long signr, int exit_code, struct pt_regs *regs)
{
struct core_state core_state;
char corename[CORENAME_MAX_SIZE + 1];
@ -1821,6 +1778,11 @@ int do_coredump(long signr, int exit_code, struct pt_regs * regs)
if (ispipe) {
helper_argv = argv_split(GFP_KERNEL, corename+1, &helper_argc);
if (!helper_argv) {
printk(KERN_WARNING "%s failed to allocate memory\n",
__func__);
goto fail_unlock;
}
/* Terminate the string before the first option */
delimit = strchr(corename, ' ');
if (delimit)
@ -1888,5 +1850,5 @@ fail_unlock:
put_cred(cred);
coredump_finish(mm);
fail:
return retval;
return;
}