summaryrefslogtreecommitdiffstats
path: root/kernel/sys.c
diff options
context:
space:
mode:
authorDavid Woodhouse <David.Woodhouse@intel.com>2012-10-09 15:03:21 +0100
committerDavid Woodhouse <David.Woodhouse@intel.com>2012-10-09 15:04:25 +0100
commitffe315012510165ce82e4dd4767f0a5dba9edbf7 (patch)
treef601cd980af9d0ced5ca9aedecef4fa0d2ca0e15 /kernel/sys.c
parente2d3a35ee427aaba99b6c68a56609ce276c51270 (diff)
parent4a8e43feeac7996b8de2d5b2823e316917493df4 (diff)
Merge tag 'disintegrate-mtd-20121009' of git://git.infradead.org/users/dhowells/linux-headers
UAPI Disintegration 2012-10-09 Conflicts: MAINTAINERS arch/arm/configs/bcmring_defconfig arch/arm/mach-imx/clk-imx51-imx53.c drivers/mtd/nand/Kconfig drivers/mtd/nand/bcm_umi_nand.c drivers/mtd/nand/nand_bcm_umi.h drivers/mtd/nand/orion_nand.c
Diffstat (limited to 'kernel/sys.c')
-rw-r--r--kernel/sys.c17
1 files changed, 9 insertions, 8 deletions
diff --git a/kernel/sys.c b/kernel/sys.c
index 241507f23ec..c5cb5b99cb8 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -368,6 +368,7 @@ EXPORT_SYMBOL(unregister_reboot_notifier);
void kernel_restart(char *cmd)
{
kernel_restart_prepare(cmd);
+ disable_nonboot_cpus();
if (!cmd)
printk(KERN_EMERG "Restarting system.\n");
else
@@ -1788,15 +1789,15 @@ SYSCALL_DEFINE1(umask, int, mask)
#ifdef CONFIG_CHECKPOINT_RESTORE
static int prctl_set_mm_exe_file(struct mm_struct *mm, unsigned int fd)
{
- struct file *exe_file;
+ struct fd exe;
struct dentry *dentry;
int err;
- exe_file = fget(fd);
- if (!exe_file)
+ exe = fdget(fd);
+ if (!exe.file)
return -EBADF;
- dentry = exe_file->f_path.dentry;
+ dentry = exe.file->f_path.dentry;
/*
* Because the original mm->exe_file points to executable file, make
@@ -1805,7 +1806,7 @@ static int prctl_set_mm_exe_file(struct mm_struct *mm, unsigned int fd)
*/
err = -EACCES;
if (!S_ISREG(dentry->d_inode->i_mode) ||
- exe_file->f_path.mnt->mnt_flags & MNT_NOEXEC)
+ exe.file->f_path.mnt->mnt_flags & MNT_NOEXEC)
goto exit;
err = inode_permission(dentry->d_inode, MAY_EXEC);
@@ -1839,12 +1840,12 @@ static int prctl_set_mm_exe_file(struct mm_struct *mm, unsigned int fd)
goto exit_unlock;
err = 0;
- set_mm_exe_file(mm, exe_file);
+ set_mm_exe_file(mm, exe.file); /* this grabs a reference to exe.file */
exit_unlock:
up_write(&mm->mmap_sem);
exit:
- fput(exe_file);
+ fdput(exe);
return err;
}
@@ -2204,7 +2205,7 @@ static int __orderly_poweroff(void)
return -ENOMEM;
}
- ret = call_usermodehelper_fns(argv[0], argv, envp, UMH_NO_WAIT,
+ ret = call_usermodehelper_fns(argv[0], argv, envp, UMH_WAIT_EXEC,
NULL, argv_cleanup, NULL);
if (ret == -ENOMEM)
argv_free(argv);