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vfs: move getname() from callers to do_mount()

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It would make more sense to pass char __user * instead of
char * in callers of do_mount() and do getname() inside do_mount().

Suggested-by: Al Viro <[email protected]>
Signed-off-by: Seunghun Lee <[email protected]>
Signed-off-by: Al Viro <[email protected]>
This commit is contained in:
Seunghun Lee 2014-09-14 22:15:10 +09:00 • committed by Al Viro
commit 5e6123f347
4 changed files with 21 additions and 44 deletions
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23
arch/alpha/kernel/osf_sys.c
View file

@ -446,7 +446,8 @@ struct procfs_args {
* unhappy with OSF UFS. [CHECKME]
*/
static int
osf_ufs_mount(const char *dirname, struct ufs_args __user *args, int flags)
osf_ufs_mount(const char __user *dirname,
struct ufs_args __user *args, int flags)
{
int retval;
struct cdfs_args tmp;
@ -466,7 +467,8 @@ osf_ufs_mount(const char *dirname, struct ufs_args __user *args, int flags)
}
static int
osf_cdfs_mount(const char *dirname, struct cdfs_args __user *args, int flags)
osf_cdfs_mount(const char __user *dirname,
struct cdfs_args __user *args, int flags)
{
int retval;
struct cdfs_args tmp;
@ -486,7 +488,8 @@ osf_cdfs_mount(const char *dirname, struct cdfs_args __user *args, int flags)
}
static int
osf_procfs_mount(const char *dirname, struct procfs_args __user *args, int flags)
osf_procfs_mount(const char __user *dirname,
struct procfs_args __user *args, int flags)
{
struct procfs_args tmp;
@ -500,28 +503,22 @@ SYSCALL_DEFINE4(osf_mount, unsigned long, typenr, const char __user *, path,
int, flag, void __user *, data)
{
int retval;
struct filename *name;
name = getname(path);
retval = PTR_ERR(name);
if (IS_ERR(name))
goto out;
switch (typenr) {
case 1:
retval = osf_ufs_mount(name->name, data, flag);
retval = osf_ufs_mount(path, data, flag);
break;
case 6:
retval = osf_cdfs_mount(name->name, data, flag);
retval = osf_cdfs_mount(path, data, flag);
break;
case 9:
retval = osf_procfs_mount(name->name, data, flag);
retval = osf_procfs_mount(path, data, flag);
break;
default:
retval = -EINVAL;
printk("osf_mount(%ld, %x)\n", typenr, flag);
}
putname(name);
out:
return retval;
}